NP430HX Motherboard Technical Product Specification

NP430HX Motherboard Technical Product Specification
NP430HX Motherboard
Technical Product Specification
Order Number 281816-001
July 1996
The NP430HX motherboard may contain design defects or errors known as errata. Characterized errata that
may cause the NP430HX motherboard’s behavior to deviate from published specifications are documented in
the NP430HX Motherboard Specfication Update.
Revision History
Revision
Revision History
Date
-001
First release of the NP430HX Technical Product Specification.
07/96
This product specification applies only to standard NP430HX motherboards with BIOS identifier
1.00.0x.DE0.
Changes to this specification will be published in the NP430HX Motherboard Specification Update
(Order Number: 281828) before being incorporated into a revision of this document.
Information in this document is provided in connection with Intel products. No license, express or implied, by estoppel or
otherwise, to any intellectual property rights is granted by this document. Except as provided in Intel’s Terms and Conditions of
Sale for such products, Intel assumes no liability whatsoever, and Intel disclaims any express or implied warranty, relating to
sale and/or use of Intel products including liability or warranties relating to fitness for a particular purpose, merchantability, or
infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life
saving, or life sustaining applications.
Intel retains the right to make changes to specifications and product descriptions at any time, without notice.
The NP430HX motherboard may contain design defects or errors known as errata. Current characterized errata are available
on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications before placing your product order.
† Third-party brands and names are the property of their respective owners.
Copies of documents which have an ordering number and are referenced in this document, or other Intel literature, may be
obtained from:
Intel Corporation
P.O. Box 7641
Mt. Prospect, IL 60056-7641
or call in North America 1-800-879-4683, Europe 44-0-1793-431-155, France 44-0-1793-421-777,
Germany 44-0-1793-421-333, other Countries 708-296-9333.
Copyright  1996, Intel Corporation. All rights reserved.
Table of Contents
1 Motherboard Description
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
Overview ............................................................................................................7
Motherboard Manufacturing Options..................................................................7
Form Factor .......................................................................................................9
Microprocessor...................................................................................................9
1.4.1
Microprocessor Upgrade ......................................................................9
Memory ............................................................................................................10
1.5.1
System Memory..................................................................................10
1.5.2
Second Level Cache...........................................................................11
Chipset .............................................................................................................11
1.6.1
82439HX Xcelerated Controller (TXC)................................................11
1.6.2
82371SB PCI ISA/IDE Xcelerator (PIIX3) ...........................................12
1.6.3
Universal Serial Bus (USB) Support ...................................................12
1.6.4
IDE Support ........................................................................................12
Super I/O Controller (National PC87306B) ......................................................13
1.7.1
Floppy Controller ................................................................................13
1.7.2
Keyboard and Mouse Interface...........................................................13
1.7.3
Real-time Clock, CMOS RAM and Battery .........................................14
1.7.4
Parallel Port ........................................................................................14
Graphics Subsystem (ATI 264VT) ...................................................................14
1.8.1
Drawing Coprocessor .........................................................................15
1.8.2
Video Coprocessor .............................................................................15
1.8.3
Host Bus Interface ..............................................................................15
1.8.4
Memory Controller and Interface ........................................................15
1.8.5
Extended VGA Graphics Controller ....................................................16
1.8.6
CRT Controller....................................................................................16
1.8.7
Display Controller ...............................................................................16
1.8.8
Palette DAC ........................................................................................16
1.8.9
Hardware Cursor ................................................................................16
1.8.10 Video I/O Interface..............................................................................16
1.8.11 Resolutions Supported .......................................................................17
1.8.12 Graphics Drivers and Utilities..............................................................17
iii
NP430HX Motherboard Technical Product Specification
1.9 Audio Subsystem .............................................................................................17
1.10 Management Extension Hardware...................................................................18
1.11 Onboard Networking ........................................................................................19
1.11.1 EtherExpress™ PRO/100B PCI LAN Subsystem ...............................19
1.11.2 Intel 82557 LAN Controller .................................................................20
1.11.3 10/100Mbps Physical Layer Interface.................................................20
1.11.4 EtherExpress PRO/100B PCI LAN Subsystem Software Description.21
1.12 Motherboard Connectors .................................................................................21
1.12.1 CD Audio - J1B1 .................................................................................22
1.12.2 Wavetable Upgrade Connector - J2D1...............................................22
1.12.3 Telephony Connector - J1E1 ..............................................................22
1.12.4 Fan Connectors - J9K1, J9K2.............................................................22
1.12.5 ATI Hardware VESA Feature Connector/VMC - J2F1 ........................23
1.12.6 Floppy Drive Connector - J10K1.........................................................23
1.12.7 PCI IDE Connectors - J9H1, J10H1....................................................24
1.12.8 Power Supply Connector ....................................................................25
1.12.9 Front Panel Connectors......................................................................26
1.12.10 Back Panel Connectors ......................................................................29
1.12.11 Add-in Board Expansion Connectors..................................................32
1.13 Jumper Settings ...............................................................................................35
1.13.1 CPU Configuration (J8A1 C and D) ....................................................36
1.13.2 Password clear (J8A1-A, Pins 1, 2, and 3) .........................................36
1.13.3 Clear CMOS (J8A1-A, Pins 4, 5, and 6) .............................................36
1.13.4 BIOS Setup Access (J8A1-B, Pins 1, 2, and 3) ..................................36
1.13.5 BIOS Recovery (J8D1, Pins 1, 2, and 3) ............................................36
1.13.6 CPU Voltage (J8D1, Pins 4, 5, and 6) ................................................37
1.14 Reliability..........................................................................................................37
1.15 Environmental ..................................................................................................37
1.16 Power Consumption.........................................................................................38
1.17 Regulatory Compliance....................................................................................38
1.17.1 Safety..................................................................................................38
1.17.2 EMI .....................................................................................................39
1.17.3 Product Certification Markings............................................................39
iv
Contents
2 Motherboard Resources
2.1
2.2
2.3
2.4
2.5
Memory Map ....................................................................................................41
DMA Channels .................................................................................................41
I/O Map ............................................................................................................42
PCI Configuration Space Map..........................................................................44
Interrupts..........................................................................................................44
3 Motherboard BIOS and Setup Utility
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
Introduction ......................................................................................................45
BIOS Flash Memory Organization ...................................................................45
BIOS Upgrades ................................................................................................46
PCI IDE Support...............................................................................................46
PCI Auto-configuration .....................................................................................47
ISA Plug and Play ............................................................................................47
Advanced Power Management ........................................................................47
Language Support............................................................................................48
Boot Options ....................................................................................................48
Flash Logo Area...............................................................................................48
BIOS Setup Access Jumper.............................................................................48
BIOS Setup Utility.............................................................................................49
3.12.1 Overview of the Setup Menu Screens ................................................49
3.12.2 Main BIOS Setup Screen....................................................................50
3.12.3 Floppy Options Subscreen .................................................................51
3.12.4 IDE Device Configuration Subscreen .................................................51
3.12.5 Boot Options Subscreen.....................................................................52
3.12.6 Advanced Screen ...............................................................................54
3.12.7 Peripheral Configuration Subscreen...................................................55
3.12.8 Audio Configuration ............................................................................57
3.12.9 Advanced Chipset Configuration Subscreen ......................................59
3.12.10 Power Management Configuration Subscreen ...................................60
3.12.11 Plug and Play Configuration Subscreen .............................................61
3.12.12 Event Logging Configuration ..............................................................62
3.12.13 Security Screen ..................................................................................63
3.12.14 Security Screen Options .....................................................................64
3.12.15 Exit Screen .........................................................................................65
v
NP430HX Motherboard Technical Product Specification
4 Error Messages and Beep Codes
4.1
4.2
4.3
4.4
vi
BIOS Beep Codes............................................................................................67
PCI Configuration Error Messages ..................................................................68
BIOS Error Messages ......................................................................................69
ISA NMI Messages ..........................................................................................70
1 Motherboard Description
1.1 Overview
The NP430HX design accepts Pentium processors operating at 75 MHz, 90 MHz, 100 MHz,
120 MHz, 133 MHz, 150 MHz, 166 MHz, or 200 MHz. As an option, 256 KB or 512 KB of
Pipeline Burst SRAM can be soldered onto the motherboard. The memory subsystem supports up
to 192 MB of EDO or Fast Page DRAM. A type 7 Pentium OverDrive socket provides upgrades
to future OverDrive processors.
The NP430HX motherboard utilizes Intel's 82430HX PCIset. The 82430HX PCIset contains an
integrated PCI bus mastering IDE controller with two IDE interfaces for up to four IDE devices
(such as hard drives, CD-ROM readers, and so forth). The PC87306B Super I/O controller
integrates the standard PC I/O functions: floppy interface, two FIFO serial ports, one EPP/ECP
capable parallel port, a real-time clock, and keyboard/mouse controller. Up to three PCI local bus
slots and up to three ISA slots complete the I/O mix. A total of five expansion slots may be
populated with full length add-in cards: one PCI and ISA slot share the same chassis I/O panel.
1.2 Motherboard Manufacturing Options
•
256 KB or 512 KB Pipeline Burst SRAM soldered onto the motherboard for L2 cache
•
Full duplex integrated audio using the Yamaha† OPL3-SA integrated CODEC/FM synthesizer
•
ATI†-VT graphics subsystem with 1 or 2 MBs of 60 ns SGRAM
•
10/100 Mbps LAN
•
Universal serial bus (USB) connectors
•
“Soft-off,” (motherboard can turn off system power through software control)
7
NP430HX Motherboard Technical Product Specification
A
B
CD EF G H
I
J K
L
M
N
O
JJ
II
P
Q
R
S
HH
GG
FF
EE
DD
T
U
CC BB AA Z Y X
W
V
OM05218
Figure 1. Motherboard Features
8
A
CD-ROM audio connector
S
Power supply connector
B
Optional Yamaha OPL3-SA FM synthesizer
T
SIMM† sockets (6)
C
Optional wavetable connector
U
Sensor-fan connectors
D
Modem audio connector
V
Floppy drive connector
E
Optional ATI 264 VT graphics controller
W
IDE connectors (2)
F
AMC connector
X
Management Extension
Hardware/temperature sensor
G
MIC in / Line out connector
Y
82439H Xcelerated Controller (TXC)
H
Optional Dual stacked USB connectors
Z
Cache tag RAM
I
Parallel port/video connector
AA
Configuration jumper block
J
Optional RJ-45 Ethernet† connector
BB
Front panel connector
K
PS/2†
CC
Lithium battery
L
Serial port connectors
DD
Optional speaker
Keyboard and Mouse connector
M
Optional SGRAM devices
EE
Configuration jumper block
N
Optional 82557 LAN controller
FF
PC87306B Super I/O controller
O
Optional 83840 device
GG
82371SB PIIX3
P
PBSRAM Cache
HH
Light detector
Q
Temperature sensor (under CPU)
II
ISA bus connectors (3)
R
Pentium processor (socket 7)
JJ
PCI bus connectors (3)
Motherboard Description
1.3 Form Factor
The motherboard fits into a standard ATX form factor chassis. Figure 2 illustrates the mechanical
form factor for the motherboard. Location of the I/O connectors and mounting holes are in strict
compliance with the ATX specification.
9 .6 0
9 .2 0
8 .0 0
3 .1 0
0 .0
0 .2 5
0.0
12.00
0 .6 5
3 .7 5
5 .5 5
1 1 .7 5
OM05219
Figure 2. Motherboard Dimensions
1.4 Microprocessor
The motherboard operates with 3.5 volt Pentium processors. An onboard switching voltage
regulator circuit provides the required voltage from the 5.0 volt tap of the power supply. An
onboard jumper enables use of VRE specified processors. Most Pentium processors with internal
clock speeds of 75, 90, 100, 120, 133, 150, 166, or 200 MHz are supported.
The Pentium processor maintains full backward compatibility with the 8086, 80286, Intel386 and
Intel486 processors. It supports both read and write burst mode bus cycles, and includes separate
8 KB on-chip code and data caches that employ a write-back policy. The Pentium processor
contains an advanced numeric coprocessor that significantly increases the speed of floating point
operations, while maintaining backward compatibility with math coprocessors that comply to
ANSI/IEEE standard 754-1985.
1.4.1
Microprocessor Upgrade
The motherboard provides a 321-pin Socket 7 zero insertion force (ZIF) processor socket. Socket
7 supports a processor upgrade path that includes high-performance Pentium OverDrive processors.
9
NP430HX Motherboard Technical Product Specification
1.5 Memory
1.5.1
System Memory
The board has six 72-pin, tin lead SIMM sockets, arranged as three banks of two sockets. Some
important considerations are:
•
•
•
•
•
•
•
The board supports 70 ns fast page mode and 60 ns extended data out (EDO) SIMMs
The board supports parity and ECC memory
Both sockets of a bank must be used
Both sockets of a bank must contain the same type (fast page or EDO), speed (60 or 70 ns),
and size of SIMM
You can have different types, speeds, and sizes in different banks
Only tin lead 72-pin SIMMs can be used
There are no jumper settings required for the memory size or type, which is automatically
detected by the system BIOS
The sockets support the following SIMM sizes:
SIMM size
Configuration
(without parity)
Configuration
(with parity)
2 MB
512 K x 32
512 K x 36
4 MB
1 M x 32
1 M x 36
8 MB
2 M x 32
2 M x 36
16 MB
4 M x 32
4 M x 36
32 MB
8 M x 32
8 M x 36
1.5.1.1
EDO DRAM Support
The motherboard supports both fast page and extended data out (or Hyper Page) DRAM. EDO
improves DRAM read performance. EDO DRAM holds the memory data valid until the next
CAS# falling edge, unlike standard fast page mode DRAM which tri-states the memory data when
CAS# negates to precharge for the next cycle. With EDO, the CAS# precharge overlaps the data
valid time, allowing CAS# to negate earlier while still satisfying the memory data valid window
time.
✏
NOTE
If banks 1 and 2 are both populated, wait states will be added due to the increased loading. This
will decrease performance by a small amount.
10
Motherboard Description
1.5.2
Second Level Cache
The Pentium processor's internal cache can be complemented by a second level (L2) cache using
high-performance pipelined burst SRAMs with GWE (Global Write Enabled). A factory option on
the NP430HX motherboards is an onboard 256 KB or 512 KB direct mapped write-back L2 cache
implemented with two pipeline burst SRAM devices that take advantage of the Global Write
Enable pin. An 8Kb x 8 external Tag SRAM provides caching support for up to 256K cache
memory. A 32Kb x 8 external Tag SRAM provides caching support for up to 512K cache
memory. There are no upgrade options for the second level cache. The three manufacturing
options for L2 cache are:
•
•
•
No cache
256 KB
512 KB
1.6 Chipset
The Intel 82430HX PCIset consists of the 82439HX Xcelerated Controller (TXC) and one
82371SB PCI ISA/IDE Xcelerator (PIIX3) bridge chip.
1.6.1
82439HX Xcelerated Controller (TXC)
The 82439HX provides all control signals necessary to drive a second level cache and the DRAM
array, including multiplexed address signals. The TXC also controls system access to memory and
generates snoop controls to maintain cache coherency. The TXC comes in a 324-pin BGA package
and includes the following features:
•
•
•
•
CPU interface control
Integrated L2 write-back cache controller
 Pipeline burst SRAM
 256 or 512 KB direct-mapped
Integrated DRAM controller
 64 bit path to memory
 Support for EDO and fast page DRAM
 Parity and non-parity support, with error detection/correction for parity SIMMs
Fully synchronous PCI bus interface
 25/30/33 Mhz bus speeds
 PCI to DRAM > 100 MBs/sec
 Up to four PCI masters in addition to the PIIX3 and IDE
11
NP430HX Motherboard Technical Product Specification
1.6.2
82371SB PCI ISA/IDE Xcelerator (PIIX3)
The PIIX3 provides the interface between the PCI and ISA buses and integrates a dual channel fast
IDE interface capable of supporting up to four devices. The PIIX3 integrates seven DMA
channels, one 16-bit timer/counter, two eight-channel interrupt controllers, PCI-to-AT† interrupt
mapping circuitry, NMI logic, ISA refresh address generation, and PCI/ISA bus arbitration
circuitry. The PIIX3 comes in a 208-pin QFP package and includes the following features:
•
•
•
•
•
•
•
•
1.6.3
Interface between the PCI and ISA buses
Universal Serial Bus controller
 Host/hub controller
Integrated fast IDE interface
 Support for up to four devices
 PIO Mode 4 transfers up to 16 MB/sec
 Integrated 8 x 32-bit buffer for bus master PCI IDE burst transfers
 Bus master mode
PCI 2.1 compliant
Enhanced fast DMA controller
Interrupt controller and steering
Counters/timers
SMI interrupt logic and timer with fast on/off mode
Universal Serial Bus (USB) Support
The motherboard provides two USB ports. This permits connection of two USB peripheral devices
directly to the system without an external hub. (Only shielded USB cable is supported.) If more
devices are required, an external hub can be connected to either of the built-in ports. The
NP430HX motherboard supports the standard universal host controller interface (UHCI) and takes
advantage of the standard software drivers written to be compatible with UHCI. Features of the
USB include:
•
•
•
•
•
•
•
1.6.4
Self-identifying/hot plug-in peripherals
Automatic mapping of function to driver and configuration
Support for isochronous and asynchronous transfer types over the same set of wires
Support for up to 127 physical devices
Guaranteed bandwidth and low latencies appropriate for telephony, audio, and other
applications
Error handling and fault recovery mechanisms built into protocol
Low cost cables and connectors
IDE Support
The motherboard provides two independent high performance bus-mastering PCI IDE interfaces
capable of supporting PIO Mode 3 and Mode 4 devices. The system BIOS supports Logical Block
Addressing (LBA) and Extended Cylinder Sector Head (ECHS) translation modes as well as ATAPI
(e.g. CD-ROM) devices on both IDE interfaces. Detection of IDE device transfer rate and
translation mode capability is automatically determined by the system BIOS.
12
Motherboard Description
Normally, programmed I/O operations require a substantial amount of CPU bandwidth. In true
multi-tasking operating systems like Windows† 95, the CPU bandwidth freed up by using bus
mastering IDE can be used to complete other tasks while disk transfers are occurring. When used
in conjunction with the appropriate driver for the Windows 95 environment, the IDE interface can
operate as a PCI bus master capable of supporting PIO Mode 4 devices with transfer rates of up to
16 MB/sec.
1.7 Super I/O Controller (National PC87306B)
Control for the integrated serial ports, parallel port, floppy drive, RTC and keyboard controller is
incorporated into a single component, the National Semiconductor PC87306B. This component
provides:
•
•
•
•
•
Two NS16C550-compatible UARTs with send/receive 16 byte FIFO
Multi-mode bidirectional parallel port
 Standard mode; IBM† and Centronics† compatible
 Enhanced Parallel Port (EPP) with BIOS/Driver support
 High Speed mode; Extended Capabilities Port (ECP) compatible
Industry standard floppy controller with 16 byte data FIFO (2.88 MB floppy support)
Integrated real-time clock accurate within +/- 13 minutes/yr
Integrated 8042-compatible keyboard controller
By default, the 306B interfaces are automatically configured by the BIOS during boot-up. You can
also manually configure the interfaces with the BIOS Setup utility.
1.7.1
Floppy Controller
The I/O controller is software compatible with the DP8473 and 82077 floppy disk controllers. You
can configure the floppy interface for 360 KB or 1.2 MB 5¼ inch media or for 720 KB, 1.2 MB,
1.44 MB, or 2.88 MB 3½ inch media with the BIOS setup utility. By default, the Floppy A
interface is configured for 1.44 MB and Floppy B is disabled. A Setup option makes it possible to
prevent a user from being able to write to a floppy drive. A driver is required for configuring the
floppy interface for 1.2 MB 3.5-inch (3-mode floppy) operation.
1.7.2
Keyboard and Mouse Interface
PS/2 keyboard/mouse connectors are located on the back panel side of the motherboard. The +5 V
lines to these connectors are protected with a PolySwitch† circuit which acts much like a selfhealing fuse, reestablishing the connection after an over-current condition is removed. While this
device eliminates the possibility of having to replace a fuse, care should be taken to turn off the
system power before installing or removing a keyboard or mouse.
The 87306B contains the AMI Megakey keyboard/mouse controller code which, besides providing
traditional keyboard and mouse control functions, supports Power-On/Reset (POR) password
protection. The POR password can be defined using the Setup program. The keyboard controller
also provides for the following "hot key" sequences:
•
<CTRL><ALT><DEL>: System software reset. This sequence performs a software reset of
the system by jumping to the beginning of the BIOS code and running the POST operation.
13
NP430HX Motherboard Technical Product Specification
•
•
•
•
•
1.7.3
<CTRL><ALT><+> and <CTRL><ALT><->: Turbo mode selection.
<CTRL><ALT><->: sets the system for de-turbo mode, emulating an 23 MHz AT.
<CTRL><ALT><+>: sets the system for turbo mode. Changing the Turbo mode may be
prohibited by an operating system, or when the CPU is in Protected mode or virtual x86 mode
under DOS.
<CTRL><ALT><defined in setup>: Power down and coffee-break key sequences take
advantage of the SMM capabilities of the Pentium processor to reduce the system’s power
consumption while maintaining the responsiveness necessary to service external interrupts.
<CTRL><ALT><defined in setup>: Keyboard lock key sequence provides system security by
blanking the screen and ignoring keyboard input until the BIOS User Password is typed.
When the Keyboard lock sequence is invoked, the keyboard LEDs flash to indicate that the
User Password must be entered to unlock the system. This feature will not take effect unless
the User Password has been set in the BIOS setup.
Real-time Clock, CMOS RAM and Battery
The integrated real-time clock (RTC) is DS1287 and MC146818 compatible and provides a time of
day clock, 100-year calendar with alarm features. The RTC can be set using the BIOS Setup
program. The RTC also supports 242-byte battery-backed CMOS RAM in two banks which is
reserved for BIOS use. The CMOS RAM can be set to specific values or cleared to the system
default values using the BIOS Setup program. Also, the CMOS RAM values can be cleared to the
system defaults by using a configuration jumper on the motherboard.
An external coin-cell style battery provides power to the RTC and CMOS memory. The battery
has an estimated lifetime of three years if the system is not plugged into the wall socket. When the
system is plugged in, power is supplied from the power supply’s +5 V standby current to extend
the life of the battery.
1.7.4
Parallel Port
A 25-pin D-Sub header is provided on the back panel for a multi-mode bidirectional parallel port.
The parallel port operates in standard mode, enhanced parallel port (EPP) version 1.7 mode, with
BIOS and driver support, and a high speed extended capabilities port (ECP) compatible mode.
EPP mode requires a driver provided by the peripheral manufacturer to operate correctly.
1.8 Graphics Subsystem (ATI 264VT)
The mach64† ATI-264VT is a 208 pin, VLSI multimedia graphics and video controller that
integrates a video scaler, a color space converter, a true color palette DAC, and a triple-clock
synthesizer with a mach64 graphics engine. The VT with its built in video scaling, color space
conversion, graphics/video keying and overlay, is optimized for superior video playback and
graphics acceleration.
The VT controller consists of the major functional subsystems and interfaces described below.
14
Motherboard Description
1.8.1
Drawing Coprocessor
The drawing coprocessor is a fixed function CPU dedicated to draw functions. It runs concurrently
with the host processor. Draw functions include rectangle fill, line draw, polygon boundary lines,
and polygon fill. A sophisticated pixel data path allows monochrome-to-two-color expansion,
solid color fill, screen to screen bitblts, fixed pattern fill, general pattern fill, general patterns with
rotation, and host to screen data transfers. Flexible bitblt trajectories allow off-screen memory
management.
Other features include context loading and context chaining, which off-loads draw engine setup
from the host CPU to the draw engine. A 17-function ALU and a four-function source/destination
color comparator allow a source and destination to be combined in a multitude of ways, useful for
operations such as image overlaying or transparent blits. Bit masking and scissoring can protect
memory regions from being written.
All internal draw engine data paths are 64 bits wide. Full drawing features are available in 1, 4, 8,
15, 16, 24, and 32 bits per pixel modes.
All draw engine registers are 32 bits wide. A 16x32 command FIFO improves throughput over the
expansion bus. A 4x64 source FIFO improves memory bandwidth throughput.
1.8.2
Video Coprocessor
The video coprocessor has an optimized datapath designed for scaling, filtering, and color space
conversion. A quad 192x16 SRAM line buffer has been integrated into this block to provide
vertical scaling and interpolation. Graphics and video keying capabilities and a window controller
allow for overlaying of the graphics and video data streams. This enables simultaneous display of
24 bits per pixel (bpp) video and 8bpp graphics.
1.8.3
Host Bus Interface
PCI 2.1 and multiplexed VLB support functions such as bus control, data flow control,
address/data signal generation, signal timings, and address decoding are supported. Full 32-bit
memory and I/O operations, data flow control, and byte lane swapping are enhanced by a 4x32 bit
write-through FIFO available in both VGA† and direct memory modes.
1.8.4
Memory Controller and Interface
The memory controller subsystem arbitrates requests from the direct memory interface, VGA
graphics controller, drawing coprocessor, display controller, video scalar, and hardware cursor.
Requests are serviced in a manner that ensures display integrity and maximum CPU/coprocessor
drawing performance.
This memory controller may be configured to support various video memory sizes: For SGRAM
support, the 1 MB and 2 MB configurations are supported. A full 64-bit memory path is supported
when 2 MB of SGRAM is installed.
15
NP430HX Motherboard Technical Product Specification
1.8.5
Extended VGA Graphics Controller
The VGA portion of the graphics controller is fully register-compatible with VGA standards and is
BIOS-compatible with VESA† super VGA drivers. The video port addresses are:
•
•
•
•
•
•
•
1.8.6
03B4 - 03B5 (monochrome modes)
03BA (monochrome modes)
03C0 - 03CA
03CC
03CF
03D4 - 03D5 (color modes)
03DA (color modes)
CRT Controller
The ATI-264VT CRTC subsystem has additional enhancements such as support for overscan,
video memory up to 2 MB, and screen resolutions up to 1280 x 1024 non-interlaced.
1.8.7
Display Controller
The display controller subsystem includes a display FIFO that manages the memory interface for
displayed pixel data. An enhanced attribute controller supports VGA graphics modes up to
1024 x 768 x 256 colors (at 100 Hz), VGA text modes up to 132-column on a PS/2 monitor, and
accelerator display modes up to 1280 x 1024 (75Hz).
1.8.8
Palette DAC
The internal palette DAC subsystem consists of a triple 256 x 8 SRAM palette and a triple 8-bit
DAC. It supports pixel clock rates up to 135 MHz, refresh rates up to 100 Hz, built in reference
generation, monitor detection, direct 24-bit color, separate or composite horizontal and vertical
sync signals, and optimized slew rate control for the RGB analog output for low EMI emissions.
1.8.9
Hardware Cursor
The hardware cursor logic supports a 64x64x2 memory-mapped cursor that is also XGA function
compatible. The hardware cursor may be used in any display modeOptions include two solid
colors, as well as “transparent” and “complement.” More details on register information and
programming examples are available in the mach64 Programmer’s Guide and Register Reference
Guide.
1.8.10
Video I/O Interface
This interface supports the standard VESA Feature Connector, VESA Media Channel (VMC), and
a general video input decoder port. Peripherals that support either VMC or the VESA Feature
Connector can be attached directly to the VT. A general video decoder port allows the attachment
of some video decoder chips.
16
Motherboard Description
1.8.11
Resolutions Supported
Table 1.
Supported Video Resolutions
Resolution
Supported with
1 MB SGRAM?
Supported with
2 MB SGRAM?
Refresh Rate (Hz)
640 x 480 x 256 colors
Yes
Yes
100
640 x 480 x 64K colors
Yes
Yes
100
640 x 480 x 16.7M colors
Yes
Yes
100
800 x 600 x 256 colors
Yes
Yes
100
800 x 600 x 64K colors
Yes
Yes
100
800 x 600 x 16.7M colors
No
Yes
100
1024 x 768 x 256 colors
Yes
Yes
100
1024 x 768 x 64K colors
No
Yes
100
1152 x 864 x 256 colors
Yes
Yes
80
1152 x 864 x 64K colors
No
Yes
80
1280 x 1024 x 16 colors
Yes
Yes
75
1280x 1024 x 256 colors
No
Yes
75
1.8.12
Graphics Drivers and Utilities
Common graphics drivers and utilities for DOS, Windows† 3.1x, Windows 95, and other operating
systems, as well as a variety of applications (such as AutoCAD†) are available for the NP430HX
motherboard. Contact your vendor for a list of available drivers. The Windows 3.1x and
Windows 95 drivers include the ATI WinSwitch utility that allows users to change screen
resolution without rebooting Windows, and the ATI DeskTop that supports panning and scrolling
across a virtual workspace of up to 2048 x 1536.
Users must install Version 2.2 or later of the ATI drivers for OS/2 in order to use 1 MB SGRAM.
Drivers for SCO† and Interactive UNIX† should be obtained from the respective UNIX vendor.
Although Windows 95 installs native drivers for the onboard video, these drivers are not
optimized, so you should obtain and install the accelerated drivers available through your vendor.
1.9 Audio Subsystem
The NP430HX motherboard features a 16-bit stereo audio subsystem as a factory-installed option.
The audio subsystem is based upon the Yamaha OPL3-SA FM synthesizer. The OPL3-SA
provides all the digital audio and analog mixing functions required for recording and playing of
audio on personal computers. These functions include stereo analog-to-digital and digital-toanalog converters, analog mixing, anti-aliasing and reconstruction filters, line and microphone
level inputs, and digital audio compression using selectable A-law / µlaw, and full digital control
of all mixer and volume control functions. The rear panel Mic/Line In function is switchable
between Mic In and Line In using software.
17
NP430HX Motherboard Technical Product Specification
Table 2.
NP430HX Audio Resource Mapping
Interrupts
(Options)
DMA
(Options)
I/O
(Options)
Sound Blaster
(DMA playback, DMA shared with
Windows Sound System capture)
5*
7
9
10
0*
1
3
220h
240h
Windows Sound System
(DMA playback)
7
9
10
11*
0
1*
3
530h
604h
E80h
F40h
Resource
MPU-401
(IRQ shared with Sound Blaster)
300h
330h
332h
334h
AA LIB
388h
* indicates default setting
1.10 Management Extension Hardware
The Management Extension hardware provides low-cost instrumentation capabilities designed to
reduce the total cost of PC ownership. The hardware implementation is a single-chip ASIC.
Features include:
•
•
•
•
•
•
Two integrated temperature sensors, one on the ASIC, one on the board
Two fan speed sensors
Power supply voltage monitoring to detect levels above or below acceptable values
Registers for storing power on self test (POST) hardware test results and error codes
Remote reset capabilities from a remote peer or server through LANDesk Client Manager,
Version 3.0 and service layers (when available)
Hardware compatibility with Windows NT.
When an out-of-range condition (temperature, fan speed, or voltage) is reached, an interrupt is
activated. The Management Extension circuitry connects to the ISA bus as an 8-bit I/O mapped
device.
18
Motherboard Description
VOLTAGE
+5 Sense
-5
+1 2
-12
+3.3
+2.5A
+2.5B
+ 1 2V
Temp
Sensor
2 Pulse/Rev
2 Pulse/Rev
2 Pulse/Rev
RESET
Control 3(8)
Status 4(8)
8 Bit
8 Ch
MUX
A/D
Limit 1(8)
Limit 2 (8)
SYSCL K
SMI_IN#
SMI#
IRO#/NMI#
Limit 17(8)
BTI#
SD[0...7]
FAN Intvl
Tim ers (3)
SA[0...3]
ISA
Bus
I O WC #
I OR C#
Chassis
Switch
Power Switch
(Bypass)
BTI
Security
POST Regs
(32 x 8)
Port 80/8 4
S ha d o w
MGT _CS#
RESETOUT#
I2 C I/F
Sla ve
SDA
SCL
VID[0...3]
Fans Encoders
(4400 +/- 600 rpm)
O M0 47 81
Figure 3. Block Diagram of Management Extension ASIC
1.11 Onboard Networking
1.11.1
EtherExpress™ PRO/100B PCI LAN Subsystem
The EtherExpress PRO/100B PCI LAN subsystem is an Ethernet LAN subsystem that provides
both 10Base-T and 100Base-TX connectivity. Features include:
•
•
•
•
•
32 bit direct bus mastering on the PCI bus.
Shared memory structure in the host memory that copies data directly to/from host memory.
10Base-T and 100Base-TX capability using a single RJ-45 connector.
IEEE 802.3µ Auto-Negotiation for hardware selection of highest operating speed.
Jumperless configuration; the LAN subsystem is totally software configurable.
19
NP430HX Motherboard Technical Product Specification
The following block diagram provides an overview of the LAN subsystem architecture.
10Mbps Xmit/Rcv
RJ - 4 5
Com m on
Magnetic
M odule
100Mbps Xmit/Rcv
Connector
DP83 22 3
"Twister"
DP83 8 4 0
100BA SE-TX
PHY
MII
Intel
82557
EEPR O M
PCI Local Bus
OM04782
Figure 4. Functional Block Diagram of LAN subsystem
1.11.2
Intel 82557 LAN Controller
This device is the heart of the LAN subsystem and provides the following functions:
•
•
•
•
•
1.11.3
CSMA/CD Protocol Engine
Compatible with the PCI bus interface 2.1
DMA engine for movement of commands, status, and network data across PCI
Access to EEPROM
Standard MII interface for access to IEEE 802.3µ compliant physical layer devices
10/100Mbps Physical Layer Interface
The physical layer interface is implemented in two devices from National Semiconductor, the
DP83840 and the DP83223 (a.k.a. the “Twister”). The DP83840 provides:
•
•
•
•
20
Complete functionality necessary for the 10Base-T interface; directly drives the cable when in
10Mbps mode.
All functionality required for the 100Base-TX interface except for the NRZ to MLT3
encoding/decoding function, which is provided by the DP83223 “Twister” device.
Complete set of MII management registers for control and status reporting.
802.3µ Auto-Negotiation for automatically establishing the best possible operating mode when
connected to other 10Base-T or 100Base-TX devices, whether half or full-duplex capable.
Motherboard Description
1.11.4
EtherExpress PRO/100B PCI LAN Subsystem Software Description
The software provided with the EtherExpress PRO/100B PCI LAN subsystem includes
setup/diagnostic software (SETUP.EXE) and a readme file viewer (README.EXE) that lists
supported drivers.
1.12 Motherboard Connectors
J2D1
1
2
J1E1
1
1
CD-ROM
Connector
J1B1
8
Wavetable
Connector
Telephony
Connector
J2F1
39
40
4
J6M1
20
1
AMC Connector
10
20
1
11
2
ISA
Connectors(3)
J4A1, J4B1
J4B2
Power
Connector
SIMM
Socket(6)
PCI
Connectors(3)
Bank 2 (J6J1, J7J1)
J4C1, J4D1
J4E1
Bank 0 (J8J2, J8J3)
Bank 1 (J7J2, J8J1)
Primary
Secondary
J9K1
J9K2
3
2
20
40
Fan
Connectors
J9H1
J10H1
1
PCI IDE Connector(2)
1
39
2
J10K1
34
J10D1
27
1
Front Panel I/O Connector
1 5
33
Floppy Drive Connector
OM05220a
Figure 5. Board Connectors
21
NP430HX Motherboard Technical Product Specification
1.12.1
CD Audio - J1B1
A four pin connector is provided for interfacing the audio output stream from a CD-ROM reader
into the audio sub-system mixer. This connector is compatible with the typical cable that is
supplied with CD-ROM readers for interfacing to audio add-in cards.
Pin
Signal Name
1
Ground
2
CD-Left
3
Ground
4
CD-Right
1.12.2
Wavetable Upgrade Connector - J2D1
With the standard audio feature (OPL3-SA) installed, an eight pin header is provided to connect to
a wavetable upgrade card. The wavetable upgrade module typically is installed into a standard ISA
slot with a cable routed to the connector.
Compatible wavetable upgrade cards are available from several vendors; the ICS WaveFront
upgrade module and the CrystaLake Series 2000 wavetable product family add a complete General
MIDI compatible music solution to the NP430HX-based system.
Pin
Signal Name
1
Wave Right
2
Ground
3
Wave Left
4
Ground
5
Key
6
Ground
7
No connect
8
MIDI_Out
1.12.3
Pin
Signal Name
1
Ground
2
Audio Out
3
Audio In
4
Key
1.12.4
22
Telephony Connector - J1E1
Fan Connectors - J9K1, J9K2
Pin
Signal Name
1
Ground
2
+ 12 V
3
Sense tachometer
Motherboard Description
1.12.5
ATI Hardware VESA Feature Connector/VMC - J2F1
Pin
Signal Name
Pin
Signal Name
1
Ground (VESA feature connector)
2
Data 0 (VESA feature connector)
3
Ground (“)
4
Data 1 (“)
5
Ground (“)
6
Data 2 (“)
7
Data Enable (“)
8
Data 3 (“)
9
Sync Enable (“)
10
Data 4 (“)
11
PCLK Enable (“)
12
Data 5 (“)
13
SDA (“)
14
Data 6 (“)
15
Ground (“)
16
Data 7 (“)
17
Ground (“)
18
DCLK (“)
19
Ground (“)
20
BLANK (“)
21
VFCSNS (“)
22
HSYNC (“)
23
SCL (“)
24
VSYNC (“)
25
Key (“)
26
Ground (“)
27
Key
28
Key
29
VCC
30
VSA
31
RST
32
SNRDY
33
SAD6
34
VMASK
35
No connect
36
37
Ground
38
+12 V
39
No connect
40
No connect
1.12.6
Floppy Drive Connector - J10K1
Pin
Signal Name
Pin
Signal Name
1
Ground
2
DENSEL
3
Ground
4
Reserved
5
Key
6
FDEDIN
7
Ground
8
Index #
9
Ground
10
Motor Enable A #
11
Ground
12
Drive Select B #
13
Ground
14
Drive Select A #
15
Ground
16
Motor Enable B #
17
MSEN1
18
DIR #
19
Ground
20
STEP #
21
Ground
22
Write Data #
23
Ground
24
Write Gate #
25
Ground
26
Track 00 #
continued ☛
23
NP430HX Motherboard Technical Product Specification
Floppy Drive Connector (continued)
Pin
Pin
Signal Name
27
MSEN0
28
Write Protect #
29
Ground
30
Read Data #
31
Ground
32
Side 1 Select #
33
Ground
34
Diskette Change #
1.12.7
24
Signal Name
PCI IDE Connectors - J9H1, J10H1
Pin
Signal Name
Pin
Signal Name
1
Reset IDE
2
Ground
3
Host Data 7
4
Host Data 8
5
Host Data 6
6
Host Data 9
7
Host Data 5
8
Host Data 10
9
Host Data 4
10
Host Data 11
11
Host Data 3
12
Host Data 12
13
Host Data 2
14
Host Data 13
15
Host Data 1
16
Host Data 14
17
Host Data 0
18
Host Data 15
19
Ground
20
Key
21
DDRQ0 (DDRQ1)
22
Ground
23
I/O Write #
24
Ground
25
I/O Read #
26
Ground
27
IOCHRDY
28
Vcc pull-up
29
DDACK0 (DDACK1) #
30
Ground
31
IRQ14 (IRQ15)
32
Reserved
33
Addr 1
34
Reserved
35
Addr 0
36
Addr 2
37
Chip Select 1P (1S) #
38
Chip Select 3P (3S) #
39
Activity #
40
Ground
Motherboard Description
1.12.8
Power Supply Connector
When used with a power supply that supports remote power on/off, the motherboard can turn off
the system power through software control. (“Soft-off” is a manufacturing option). The
Powerman utility supplied for Windows 3.1x allows for soft-off as does the shutdown icon in
Windows 95 Start menu. The system BIOS turns the system power off when it receives the proper
APM command from the OS. For example, Windows 95 issues this APM command when the user
selects the “Shutdown the computer” option. APM must be enabled in the system BIOS and OS
for the soft-off feature to work correctly.
1.12.8.1
Power Supply Connector - J6M1
Pin
Signal Name
Function
1
3.3 V
+3.3 V for PCI slots and 3.3 V logic
2
3.3 V
+3.3 V for PCI slots and 3.3 V logic
3
GND
Ground
4
+5 V
+5 volts Vcc
5
GND
Ground
6
+5 V
+5 volts Vcc
7
GND
Ground
8
PWRGD
Power Good
9
+5 VSB
+5 volts stand-by for real-time clock and chassis-secure circuit
10
+12 V
+12 volts
11
3.3 V
+3.3 V for PCI slots and 3.3 V logic
12
-12 V
-12 volts
13
GND
Ground
14
PS-ON*
Power Supply remote on/off control
15
GND
Ground
16
GND
Ground
17
GND
Ground
18
-5 V
-5 volts
19
+5 V
+5 volts Vcc
20
+5 V
+5 volts Vcc
* except Pentium processors, which use an onboard switching regulator
25
NP430HX Motherboard Technical Product Specification
1.12.9
Front Panel Connectors
The motherboard provides header connectors to support functions typically located on the chassis
bezel. Front panel features supported include:
•
•
•
•
•
•
•
Speaker
Reset switch
Power LED
Hard drive activity LED
Infrared (IRDA) port
Sleep switch
Power switch
Speaker
Res et Sleep LED
HD L ED
Infrared
27
Sleep Pwr On
1
OM05221
Figure 6. Front Panel I/O Connectors
26
Motherboard Description
1.12.9.1
Front Panel I/O Connectors
Pin
Signal Name
1
SW_ON
2
Ground
3
SLEEP
4
SLEEPPU
5
No connect
6
+5V
7
No connect
8
IRRIN
9
Ground
10
IRTX
11
CONIR
12
No connect
13
HD_PWR
14
Key
15
HDA#
16
HD_PWR
17
No connect
18
PWR_LED_DRV (Sleep LED)
19
Key
20
PWR_LED_PU (Sleep LED)
21
No connect
22
Ground
23
HW_RST
24
Ground
25
Key
26
PIEZO_IN
27
SPKRHDR
1.12.9.2
Speaker
The speaker provides error beep code information during the Power-On Self Test, if the system
cannot use the video interface. As a manufacturing option, an onboard piezoelectric speaker may
be present. The onboard speaker may be disabled by removing a jumper from the front panel
speaker connector and connecting an offboard speaker in its place. The speaker is not connected to
the audio subsystem, so it will not receive output from the audio subsystem.
1.12.9.3
Reset
This header can be connected to a momentary SPST type switch that is normally open. When the
switch is closed, the board resets and runs POST.
27
NP430HX Motherboard Technical Product Specification
1.12.9.4
Sleep LED (Power LED)
This LED is on steadily when the power is on. It blinks when the computer is in sleep mode.
1.12.9.5
HD LED
This header can be connected to an LED to provide a visual indicator for when an IDE hard drive
connected to the onboard IDE controller is being read or written.
1.12.9.6
Infrared connector
Serial port 2 can be configured to support an IrDA† module with a 6- pin header connector. After
configuring the IrDA interface, the user can transfer files to or from portable devices such as
laptops, PDAs and printers using application software such as LapLink†. The IrDA specification
provides for data transfers at 115 Kbps from a distance of 1 meter. Consumer IR is also supported
by the same connector.
1.12.9.7
Sleep/Resume
When advanced power management (APM) is activated in the system BIOS and the operating
system’s APM driver is loaded, Sleep mode (Standby) can be entered in one of three ways: an
optional front panel “Sleep/Resume” button, a user defined keyboard hot key, or prolonged system
inactivity. The Sleep/Resume button is supported by a 2-pin header located on the front panel I/O
connector. Closing the “Sleep” switch generates an SMI (System Management Interrupt) to the
processor which immediately goes into System Management Mode (SMM).
The front panel “Sleep mode” switch must be a momentary two pin SPST type that is normally
open. The function of the Sleep/Resume button can also be achieved with a keyboard hot-key
sequence, or by a time-out of the system inactivity timer. Both the keyboard hot-key and the
inactivity timer are programmable in the BIOS setup (timer is set to 10 minutes by default). To
reactivate the system, or “Resume”, the user must press the sleep/resume button again, or use the
keyboard or PS/2 mouse. Mouse activity “wakes up” the system only if a mouse driver is loaded.
While the system is in Standby or “sleep” mode it is fully capable of responding to and servicing
external interrupts (such as incoming fax) even though the monitor turns on only if a user interrupt
(PS/2 keyboard/mouse) occurs as mentioned above.
1.12.9.8
Pwr-On LED
When this LED is off, a momentary closure turns the computer on. When this LED is on, a
momentary closure turns the computer off.
28
Motherboard Description
1.12.10
Back Panel Connectors
The back panel provides external access to two serial ports, PS/2 style keyboard and mouse
connectors, an RJ-45 Ethernet connector, one parallel port, a VGA connector, two USB connectors,
and external audio jacks (line out and MIC in). Figure 7 shows the location of the I/O connectors.
C OM 1
P S /2
Mou se
Parallel Port
U SB -1
Li ne Ou t
MIC In
COM 2
P S /2
K e y bo a rd
VGA
USB-2
RJ - 4 5
E ne t/LE D
O M 04 73 9a
Figure 7. Back Panel I/O Connectors
29
NP430HX Motherboard Technical Product Specification
1.12.10.1
Pin
Signal Name
1
DCD
2
Serial In #
3
Serial Out #
4
DTR#
5
GND
6
DSR#
7
RTS#
8
CTS#
9
RI#
1.12.10.2
PS/2 Keyboard and Mouse Connectors - J1L1
Pin
Signal Name
1
Data
2
No connect
3
Ground
4
+5 V (fused)
5
Clock
6
No connect
1.12.10.3
30
Serial Port Connectors - J1M1
RJ-45 LAN Connector - J1K1
Pin
Signal Name
1
TXP
2
TXM
3
RXP
4
Bus_Term
5
Bus_Term
6
RXM
7
Bus_Term
8
Bus_Term
Motherboard Description
1.12.10.4
Parallel Port Connector - J1J1
Pin
Signal Name
Pin
Signal Name
1
Strobe#
14
Auto Feed#
2
Data bit
15
Fault#
3
Data bit
16
INIT#
4
Data bit
17
SLCT IN#
5
Data bit
18
Ground
6
Data bit
19
Ground
7
Data bit
20
Ground
8
Data bit
21
Ground
9
Data bit
22
Ground
10
ACK#
23
Ground
11
Busy
24
Ground
12
Error
25
Ground
13
Select
1.12.10.5
Video Monitor Connector - J1J1
Pin
Signal Name
1
Red
2
Green
3
Blue
4
No connect
5
Ground
6
Ground
7
Ground
8
Ground
9
No connect
10
Ground
11
No connect
12
MONID1
13
Horizontal Sync
14
Vertical Sync
15
MONID2
1.12.10.6
USB Connectors - J1G2
Pin
Signal Name
1
Power
2
USBP0# [USBP1#]
3
USBP0 [USBP1]
4
Ground
31
NP430HX Motherboard Technical Product Specification
1.12.11
Add-in Board Expansion Connectors
The motherboard contains two PCI slots, two ISA slots and one shared slot (for a PCI or ISA card).
The PCI bus is fully compliant with the PCI 2.1 specification and supports up to three bus masters
through the three PCI connectors.
1.12.11.1
32
PCI Bus Connectors
Pin
Signal Name
Pin
Signal Name
Pin
Signal Name
Pin
Signal Name
A1
Vcc
B1
-12 V
A32
AD16
B32
AD17
A2
+12 V
B2
GND
A33
3.3 V
B33
C/BE2#
A3
Vcc
B3
GND
A34
FRAME#
B34
GND
A4
Vcc
B4
TD0NC
A35
GND
B35
IRDY#
A5
Vcc
B5
Vcc
A36
PTRDY#
B36
3.3 V
A6
PCIINTA3#
B6
Vcc
A37
GND
B37
DEVSEL#
A7
PCIINTC1#
B7
PCIINT4B#
A38
STOP#
B38
GND
A8
Vcc
B8
PCIINT2D#
A39
3.3 V
B39
PLOCK#
A9
GNDReserved
B9
PRSNT1C#
A40
SDONE
B40
PERR#
A10
GNDVcc
B10
Reserved
A41
SBO#
B41
3.3 V
A11
Reserved
B11
PRSNT2C#
A42
GND
B42
SERR#
A12
GND
B12
GND
A43
PAR
B43
3.3 V
A13
GND
B13
GND
A44
AD15
B44
C/BE1#
A14
Reserved
B14
Reserved
A45
3.3 V
B45
AD14
A15
PCIRST#
B15
GND
A46
AD13
B46
GND
A16
Vcc
B16
SL_3PCICLK
A47
AD11
B47
AD12
A17
PCIGNT#
B17
GND
A48
GND
B48
AD10
A18
GND
B18
PCIREQ2
A49
AD9
B49
GND
A19
Reserved
B19
Vcc
A50
KEY
B50
KEY
A20
AD30
B20
AD31
A51
KEY
B51
KEY
A21
3.3 V
B21
AD29
A52
C/BE0#
B52
AD8
A22
AD28
B22
GND
A53
3.3 V
B53
AD7
A23
AD26
B23
AD27
A54
AD6
B54
3.3 V
A24
GND
B24
AD25
A55
AD4
B55
AD5
A25
AD24
B25
3.3 V
A56
GND
B56
AD3
A26
IDSEL
B26
C/BE3#
A57
AD2
B57
GND
A27
3.3 V
B27
AD23
A58
AD0
B58
AD1
A28
AD22
B28
GND
A59
Vcc
B59
Vcc
A29
AD20
B29
AD21
A60
REQ64C#
B60
ACK64C#
A30
GND
B30
AD19
A61
Vcc
B61
Vcc
A31
AD18
B31
3.3 V
A62
Vcc
B62
Vcc
Motherboard Description
1.12.11.2
ISA Bus Connectors
Pin
Signal Name
Pin
Signal Name
B1
GND
A1
IOCHK#
B2
RSTDRV
A2
SD7
B3
Vcc
A3
SD6
B4
IRQ9
A4
SD5
B5
-5 V
A5
SD4
B6
DRQ2
A6
SD3
B7
-12 V
A7
SD2
B8
0WS#
A8
SD1
B9
+12 V
A9
SD0
B10
GND
A10
IOCHRDY
B11
SMEMW#
A11
AEN
B12
SMEMR#
A12
SA19
B13
IOW#
A13
SA18
B14
IOR#
A14
SA17
B15
DACK3#
A15
SA16
B16
DRQ3
A16
SA15
B17
DACK1#
A17
SA14
B18
DRQ1
A18
SA13
B19
REFRESH#
A19
SA12
B20
SYSCLK
A20
SA11
B21
IRQ7
A21
SA10
B22
IRQ6
A22
SA9
B23
IRQ5
A23
SA8
B24
IRQ4
A24
SA7
B25
IRQ3
A25
SA6
B26
DACK2#
A26
SA5
B27
TC
A27
SA4
B28
BALE
A28
SA3
B29
Vcc
A29
SA2
B30
OSC
A30
SA1
B31
GND
A31
SA0
D1
MEMCS16#
C1
SBHE#
D2
IOCS16#
C2
LA23
D3
IRQ10
C3
LA22
KEY
KEY
continued ☛
33
NP430HX Motherboard Technical Product Specification
ISA Bus Connectors (continued)
34
Pin
Signal Name
Pin
Signal Name
D4
IRQ11
C4
LA21
D5
IRQ12
C5
LA20
D6
IRQ15
C6
LA19
D7
IRQ14
C7
LA18
D8
DACK0#
C8
LA17
D9
DRQ0
C9
MEMR#
D10
DACK5#
C10
MEMW#
D11
DRQ5
C11
SD8
D12
DACK6#
C12
SD9
D13
DRQ6
C13
SD10
D14
DACK7#
C14
SD11
D15
DRQ7
C15
SD12
D16
Vcc
C16
SD13
D17
Master#
C17
SD14
D18
GND
C18
SD15
Motherboard Description
1.13 Jumper Settings
J8D1
E
4
6
1
3
J8A1
4
1
A
6
4
3
1
6
4
3
1
B
C
6
4
3
1
6
3
D
OM05222
Figure 8. Jumper Locations
Table 3.
Configuration Jumper Settings
Function
Jumper
Configuration
Password clear
J8A1-A
1-2 Password enabled (Default)
2-3 Password clear/disabled
CMOS clear
J8A1-A
4-5 Keep (Default)
5-6 Clear
BIOS Setup Access
J8A1-B
1-2 Access allowed (Default)
2-3 Access denied
CPU speed
J8A1-C
See Table 4
Host bus speed
(Note: These jumpers also set the PCI
and ISA clock speeds.)
J8A1-D
See Table 4
Processor voltage
J8D1-E
4-5 Standard voltage
5-6 VRE enabled (Default)
35
NP430HX Motherboard Technical Product Specification
1.13.1
CPU Configuration (J8A1 C and D)
These jumpers allow the motherboard to be switched between different speeds of the Pentium
processor. The jumpers also affect the PCI and ISA clock speeds according to the following table.
Table 4.
CPU / Bus Speed Settings
CPU Frequency
Jumper Settings
for J8A1-C
Jumper Settings Host Bus
for J8A1-D
Frequency
PCI Bus
Frequency
ISA Bus
Frequency
200 MHz
1-2 and 5-6
1-2 and 5-6
66 MHz
33 MHz
8.33 MHz
166 MHz
1-2 and 5-6
2-3 and 5-6
66 MHz
33 MHz
8.33 MHz
150 MHz
2-3 and 5-6
1-2 and 5-6
50 MHz
30 MHz
7.5 MHz
133 MHz
1-2 and 5-6
2-3 and 4-5
66 MHz
33 MHz
8.33 MHz
120 MHz
2-3 and 4-5
2-3 and 4-5
60 MHz
30 MHz
7.5 MHz
100 MHz
1-2 and 5-6
1-2 and 4-5
66 MHz
33 MHz
8.33 MHz
90 MHz
2-3 and 4-5
1-2 and 4-5
60 MHz
30 MHz
7.5 MHz
75 MHz
2-3 and 5-6
1-2 and 4-5
50 MHz
25 MHz
8.33 MHz
Reserved
1-2 and 4-5
-
-
-
-
1.13.2
Password clear (J8A1-A, Pins 1, 2, and 3)
Allows system password to be cleared by moving the jumper from pins 1-2 to pins 2-3 and turning
the system on. The system should then be turned off and the jumper should be returned to the 1-2
position to restore normal operation. This procedure should only be done if the user password has
been forgotten. The password function is effectively disabled if this jumper is in the 2-3 position.
Default is for the password to be enabled (1-2 position).
1.13.3
Clear CMOS (J8A1-A, Pins 4, 5, and 6)
Allows CMOS settings to be reset to default values by moving the jumper from pins 4-5 to pins
5-6 and turning the system on. When the system reports that “NVRAM cleared by jumper”, the
system can be turned off, and the jumper should be returned to the 4-5 position to restore normal
operation. Default is for this jumper to be on pins 4-5. Clearing CMOS settings also clears ESCD
data.
1.13.4
BIOS Setup Access (J8A1-B, Pins 1, 2, and 3)
Allows access to BIOS Setup utility to be disabled by moving this jumper from the 1-2 position to
the 2-3 position. Default is for access to setup to be enabled (1-2 position).
1.13.5
BIOS Recovery (J8D1, Pins 1, 2, and 3)
Allows for recovery in case a BIOS update fails. Move the jumper to the Recovery position (2-3
position) to perform the BIOS recovery procedure. Default is “Normal” (1-2 position).
36
Motherboard Description
1.13.6
CPU Voltage (J8D1, Pins 4, 5, and 6)
This jumper block changes the output of the on-board voltage regulator. Pins 4-5 should be
jumpered for processors that require standard voltage regulation. Pins 5-6 should be jumpered for
processors that require the VRE specification. This jumper should not be changed by the user
unless changing to a new processor type. Some upgrade processors may require a different setting.
Check the processor's documentation for the correct setting. (Standard = 3.135-3.6V,
VRE = 3.4-3.6V). In general, the upgrade processor should be strapped to VRE, unless you are
using a Pentium Overdrive processor.
1.14 Reliability
The Mean-Time-Between-Failures (MTBF) data is calculated from predicted data @ 55C.
Motherboard:
68,534 hours calculated
1.15 Environmental
Table 5.
Motherboard Environmental Specifications
Parameter
Specification
Temperature
Non-Operating
-40°C to +70°C
Operating
+0°C to +55°C
Vibration
Unpackaged
5 Hz to 20 Hz: 0.01 g2 Hz sloping up to 0.02 g2 Hz
20 Hz to 500 Hz: 0.02 g2 Hz (flat)
Packaged
10 Hz to 40 Hz: 0.015 g2 Hz (flat)
40 Hz to 500 Hz: 0.015 g2 Hz sloping down to 0.00015 g2 Hz
37
NP430HX Motherboard Technical Product Specification
1.16 Power Consumption
Tables 6 and 7 list the voltage and current specifications for a typical system configuration. This
information is preliminary and is provided only as a guide for calculating approximate total system
power usage with additional resources added.
Table 6.
DC Voltage
DC Voltage
Acceptable Tolerance
+3.3 V
±5%
±5%
±5%
±5%
±5%
±5%
+5V
+5V SB (stand by)
-5V
+12V
-12V
Table 7.
Power Usage
DC Voltage (V)
Current (RMS), APM Disabled
Current (RMS),
APM Enabled
3.3
420 mA
431.6 mA
5
1.963 A
1.940 A
5 VSB
0 mA
0 mA
-5
0 mA
0 mA
12
110.1 mA
106.8 mA
-12
41.76 mA
40.24 mA
1.17 Regulatory Compliance
This printed circuit assembly meets the following safety and EMI regulations when correctly
installed in a compatible host system.
1.17.1
1.17.1.1
Safety
UL 1950 - CSA 950-95, 3rd edition, 28 July 1995
The Standard for Safety of Information Technology Equipment including Electrical Business
Equipment. (USA and Canada)
1.17.1.2
CSA C22.2 No. 950-93, 2nd Edition
The Standard for Safety of Information Technology Equipment including Electrical Business
Equipment. (Canada)
38
Motherboard Description
1.17.1.3
EN 60 950, 2nd Edition, 1992 (with Amendments 1, 2, and 3)
The Standard for Safety of Information Technology Equipment including Electrical Business
Equipment. (European Union)
1.17.1.4
IEC 950, 2nd edition, 1991 (with Amendments 1, 2, and 3)
The Standard for Safety of Information Technology Equipment including Electrical Business
Equipment. (International)
1.17.1.5
EMKO-TSE (74-SEC) 207/94
Summary of Nordic deviations to EN 60 950. (Norway, Sweden, Denmark, and Finland)
1.17.2
EMI
1.17.2.1
FCC Class B
Title 47 of the Code of Federal Regulations, Parts 2 and 15, Subpart B, pertaining to unintentional
radiators. (USA)
1.17.2.2
CISPR 22, 2nd Edition, 1993
Limits and methods of measurement of Radio Interference Characteristics of Information
Technology Equipment. (International)
1.17.2.3
EN 55 022, 1995
Limits and methods of measurement of Radio Interference Characteristics of Information
Technology Equipment. (Europe)
1.17.2.4
EN 50 082-1, 1992
Generic Immunity Standard. Currently compliance is determined via testing to
IEC 801-2, -3 and -4. (Europe)
1.17.2.5
VCCI Class 2 (ITE)
Implementation Regulations for Voluntary Control of Radio Interference by Data Processing
Equipment and Electronic Office Machines. (Japan)
1.17.2.6
ICES-003, Issue 2
Interference-Causing Equipment Standard, Digital Apparatus. (Canada)
1.17.3
Product Certification Markings
This printed circuit assembly has the following product certification markings:
•
European CE Mark
 Marking on the board or shipping container.
39
NP430HX Motherboard Technical Product Specification
•
•
40
UL Recognition Mark
 Marking is the UL File No. E139761 on the component side of the board and the PB No.
on the solder side of the board. Board material flammability is 94V-1 or -0.
Canadian Compliance Mark
 Marking is a small c followed by a stylized backward UR on the component side of the
board.
2 Motherboard Resources
2.1 Memory Map
Table 8.
Memory Map
Address Range
(Decimal)
Address Range
(hex)
Size
Description
1024 K - 131072 K
100000 - C000000
191 M
Extended Memory
960 K - 1023 K
F0000 - FFFFF
64 K
Main BIOS
944 K - 959 K
EC000 - EFFFF
16 K
Boot block (available as UMB)
936 K - 943 K
EA000 - EBFFF
8K
VPD ESCD (DMI configuration information)
932 K - 935 K
E9000 - E9FFF
4K
Reserved for BIOS
928 K - 931 K
E8000 - E8FFF
4K
OEM logo or Scan User Flash
896 K - 927 K
E0000 - E7FFF
32 K
POST BIOS (available as UMB / high DOS
memory - open to PCI bus)
800 K - 895 K
C8000 - DFFFF
96 K
Available High DOS memory (open to ISA and
PCI bus)
640 K - 799 K
A0000 - C7FFF
160 K
Onboard video memory and BIOS
639 K - 640 K
9FC00 - 9FFFF
1K
Extended BIOS Data (moveable by QEMM †,
386MAX†)
512 K - 638 K
80000 - 9FBFF
127 K
Extended conventional
0 K - 511 K
00000 - 7FFFF
512 K
Conventional
2.2 DMA Channels
Table 9.
DMA Channels
DMA
Data Width
0
8- or 16-bits
Audio
1
8- or 16-bits
Audio / Parallel Port
2
8- or 16-bits
Floppy
3
8- or 16-bits
Parallel Port / Audio
4
System Resource
Reserved - Cascade channel
5
16-bits
Open
6
16-bits
Open
7
16-bits
Open
41
NP430HX ATX Motherboard Technical Product Specification
2.3 I/O Map
Table 10.
I/O Map
Address (hex)
Size
Description
0000 - 000F
16 bytes
PIIX3 - DMA 1
0020 - 0021
2 bytes
PIIX3 - Interrupt Controller 1
002E - 002F
2 bytes
Super I/O configuration registers
0040 - 0043
4 bytes
PIIX3 - counter 1
0048 - 004B
4 bytes
PIIX3 - counter 2
0060
1 byte
Keyboard Controller Byte - Reset IRQ
0061
1 byte
PIIX3 - NMI, speaker control
0064
1 byte
Keyboard Controller, CMD/STAT Byte
0070, bit 7
1 bit
PIIX3 - Enable NMI
0070, bits 6:0
7 bits
PIIX3 - Real Time Clock, Address
0071
1 byte
PIIX3 - Real Time Clock, Data
0078
1 byte
Reserved - board configuration
0079
1 byte
Reserved - board configuration
0080 - 008F
16 bytes
PIIX3 - DMA Page Register
00A0 - 00A1
2 bytes
PIIX3 - Interrupt Controller 2
00B2 - 00B3
2 bytes
APM control
00C0 - 00DE
31 bytes
PIIX3 - DMA 2
00F0
1 byte
Reset Numeric Error
0170 - 0177
8 bytes
Secondary IDE Channel
01F0 - 01F7
8 bytes
Primary IDE Channel
0200 - 0207
8 bytes
Audio (reserved)
0220 - 022F
16 bytes
Audio (SB compatible)
0240 - 024F
16 bytes
Audio (SB compatible)
0278 - 027B
4 bytes
Parallel port 2
0290 - 0297
8 bytes
Hardware monitor ASIC:
290/94 monitors and stores post-code
295
address and content functions
296
register read/write operations
02E8 - 02EF
8 bytes
Serial port 4
02F8 - 02FF
8 bytes
Serial port 2
0300 - 0301
2 bytes
MPU - 401 (MIDI)
0330 - 0331
2 bytes
MPU - 401 (MIDI)
0332 - 0333
2 bytes
MPU - 401 (MIDI)
0334 - 0335
2 bytes
MPU - 401 (MIDI)
0376
1 byte
Sec IDE Chan Cmd Port
0377
1 byte
Floppy channel 2 command
0377, bit 7
1 bit
Floppy disk chng channel 2
continued ☛
42
Motherboard Resources
Table 10.
I/O Map (continued)
Address (hex)
Size
Description
0377, bits 6:0
7 bits
Sec IDE Chan Status Port
0378 - 037F
8 bytes
Parallel port 1
0388 - 038D
6 bytes
AA LIB (FM synth)
03B4 - 03B5
2 bytes
Video (VGA)
03BA
1 byte
Video (VGA)
03BC - 03BF
4 bytes
Parallel port 3
03C0 - 03CA
11 bytes
Video (VGA)
03CC
1 byte
Video (VGA)
03CE - 03CF
2 bytes
Video (VGA)
03D4 - 03D5
2 bytes
Video (VGA)
03DA
1 byte
Video (VGA)
03E8 - 03EF
8 bytes
Serial port 3
03F0 - 03F5
6 bytes
Floppy Channel 1
03F6
1 byte
Pri IDE Chan Cmd Port
03F7 (Write)
1 byte
Floppy Chan 1 Cmd
03F7, bit 7
1 bit
Floppy Disk Chg Chan 1
03F7, bits 6:0
7 bits
Pri IDE Chan Status Port
03F8 - 03FF
8 bytes
Serial port 1
04D0 - 04D1
2 bytes
Edge/level triggered
LPT + 400h
8 bytes
ECP port
0530 - 0537
8 bytes
Windows sound system
0604 - 060B
8 bytes
Windows sound system
0CF8*
4 bytes
PCI Config Address Reg.
0CF9**
1 byte
Turbo & Reset Control Reg.
0CFC-0CFF*
4 bytes
PCI Config Data Register
0E80 - 0E87
8 bytes
Windows sound system
0F40 - 0F47
8 bytes
Windows sound system
0F86 - 0F87
2 bytes
Yamaha OPL3-SA configuration
FF00 - FF07
8 bytes
IDE Bus Master Reg.
FFA0 - FFA7
8 bytes
Primary Bus Master IDE Registers
FFA8 - FFAF
8 bytes
Secondary Bus Master IDE Registers
*
DWORD access only
**
Byte access only
43
NP430HX ATX Motherboard Technical Product Specification
2.4 PCI Configuration Space Map
Table 11.
PCI Configuration Space Map
Bus Number
(hex)
Dev Number
(hex)
Function
Number (hex)
Description
00
00
00
Intel 82439HX (TXC)
00
07
00
Intel 82371FB (PIIX3 ) PCI/ISA bridge
00
07
01
Intel 82371FB (PIIX3 ) IDE Bus Master
00
07
02
Intel 82371FB (PIIX3) USB
00
08
00
ATI VGA Graphics
00
0C
00
Intel 82557 Ethernet Network
00
0D
00
PCI Expansion Slot: User Available
00
0E
00
PCI Expansion Slot: User Available
00
0F
00
PCI Expansion Slot: User Available
2.5 Interrupts
Table 12.
IRQ
System Resource
NMI
I/O Channel Check
0
Reserved, Interval Timer
1
Reserved, Keyboard buffer full
2
Reserved, Cascade interrupt from slave PIC
3
Serial Port 2*
4
Serial Port 1*
5
Audio*
6
Floppy
7
Parallel Port 1
8
Real Time Clock
9
User available
10
User available
11
Windows Sound System*
12
Onboard Mouse port if present, else user available
13
Reserved, Math coprocessor
14
Primary IDE if present, else user available
15
Secondary IDE if present, else user available
*
44
Interrupts
Default
3 Motherboard BIOS and Setup Utility
3.1 Introduction
The motherboard uses an Intel BIOS, which is stored in Flash EEPROM and upgraded using a
floppy disk-based program. In addition to the Intel BIOS, the Flash EEPROM also contains the
Setup utility, Power-On Self Tests (POST), APM 1.1, the PCI auto-configuration utility, and
Windows 95 ready Plug and Play. This motherboard also supports system BIOS shadowing,
allowing the BIOS to execute from 64-bit onboard write-protected DRAM.
The BIOS displays a sign-on message during POST identifying the type of BIOS and a five-digit
revision code. The initial production BIOS in the motherboard will be identified as 1.00.01.DE0.
Information on BIOS functions can be found in the IBM PS/2 and Personal Computer BIOS
Technical Reference published by IBM, and the ISA and EISA Hi-Flex AMIBIOS Technical
Reference published by AMI. Both manuals are available at most technical bookstores.
3.2 BIOS Flash Memory Organization
The Intel 28FB200BX 2 Mbit Flash component is organized as 256K x 8. The Flash device is
divided into eight areas, as described in Table 13.
Table 13.
Flash Memory Organization
System Address (Hex)
Size
Description
FFFF0000 - FFFFFFFF
64 KB
Main BIOS block
FFFEC000 - FFFEFFFF
16 KB
Boot block (available as UMB)
FFFEA000 - FFFEBFFF
8 KB
VPD ESCD (DMI configuration information)
FFFE9000 - FFFE9FFF
4 KB
Reserved for BIOS
FFFE8000 - FFFE8FFF
4 KB
OEM logo or Scan User Flash
FFFE0000 - FFFE7FFF
32 KB
Main BIOS block
FFFD0000 - FFFDFFFF
64 KB
Main BIOS block
FFFC0000 - FFFCFFFF
64 KB
Main BIOS block
45
NP430HX ATX Motherboard Technical Product Specification
3.3 BIOS Upgrades
Flash memory simplifies distributing BIOS upgrades. A new version of the BIOS can be installed
from a diskette. BIOS upgrades are available to be downloaded from the World Wide Web
(http://wwwcs.intel.com/oem_developer) , or Intel’s FTP site (U.S.: ftp.intel.com/pub/bios;
European mirror: ftp.funet.fi/pub/mirrors/ftp.initel.com/bios).
The disk-based Flash upgrade utility, FMUP.EXE, has three options for BIOS upgrades:
•
•
•
The Flash BIOS can be updated from a file on a disk;
The current BIOS code can be copied from the Flash EEPROM to a disk file as a backup in
case an upgrade cannot be successfully completed; or
The BIOS in the Flash device can be compared with a file to ensure the system has the correct
version.
The upgrade utility ensures the upgrade BIOS extension matches the target system to prevent
accidentally installing a BIOS for a different type of system.
3.4 PCI IDE Support
The two local bus IDE connectors with independent I/O channel support are setup up automatically
by the BIOS if the user selects “Autoconfiguration” in Setup. The IDE interface supports PIO
Mode 3 and Mode 4 hard drives and recognition of ATAPI CD-ROMs, tape drives, and any other
ATAPI devices. The BIOS determines the capabilities of each drive and configure them to
optimize capacity and performance. For the high capacity hard drives typically available today, the
drive is automatically configured for Logical Block Addressing (LBA) for maximum capacity and
to PIO Mode 3 or 4, depending on the capability of the drive. The user is able to override the autoconfiguration options by using the manual mode setting. The ATAPI Specification Revision 2.5
recommends that an ATAPI device be configured as shown in the table below.
Table 14.
Recommendations for Configuring an ATAPI Device
Primary Cable
46
IDE Configuration
Drive 0
Normal, no ATAPI
ATA
Disk and CD-ROM for enhanced
IDE systems
ATA
Legacy IDE System with only one
cable
ATA
Enhanced IDE with CD-ROM and
a tape or two CD-ROMs
ATA
Secondary Cable
Drive 1
Drive 0
Drive 1
ATAPI
ATAPI
ATAPI
ATAPI
Motherboard BIOS and Setup Utility
3.5 PCI Auto-configuration
The PCI auto-configuration utility operates in conjunction with the system Setup utility to allow
the insertion and removal of PCI cards to the system without user intervention (Plug and Play).
When the system is turned on after adding a PCI add-in card, the BIOS automatically configures
interrupts, I/O space, and other parameters. PCI interrupts are distributed to available ISA
interrupts that have been not been assigned to an ISA card, or system resources. Those interrupts
left set to “available” in the BIOS setup are considered available for PCI add-in card use Which
PCI interrupt is assigned to which IRQ is nondeterministic.
The PCI Auto-Configuration function complies with version 2.10 of the PCI BIOS specification.
System configuration information is stored in ESCD format. The ESCD data can be cleared by
setting the CMOS clear jumper to the “Clear” position. See section 1.13.3 for more information.
PCI specification 2.1 for add-in card auto-configuration is also a part of the Plug and Play BIOS.
Peer-to-peer hierarchical PCI Bridge 1.0 is supported, and by using an OEM supplied option ROM
or TSR, a PCI-to-PCMCIA bridge capability is possible as well.
3.6 ISA Plug and Play
The BIOS incorporates ISA Plug and Play capabilities as delivered by Plug and Play Release 1.0A
(Plug and Play BIOS V. 1.0A, ESCD V. 1.03). When used in conjunction with the ISA
Configuration Utility (ICU) for DOS or Windows 3.x, the system allows auto-configuration of
Plug and Play ISA cards, PCI cards, and resource management for legacy ISA cards. Because the
BIOS supports configuring devices across PCI bridges, release 1.41 or greater of the ICU must be
used with the motherboard to properly view and change system settings. System configuration
information is stored in ESCD format. The ESCD data can be cleared by setting the CMOS clear
jumper to the “Clear” position. See section 1.13.3 for more information.
The BIOS also has a setup option to support the Windows 95 run time Plug and Play utilities.
When this option is selected, only devices critical to booting are assigned resources by the BIOS.
Device Node information is available for all devices to ensure compatibility with Windows 95.
Copies of the IAL Plug and Play specification may be obtained from the Intel BBS , or from
CompuServe† by typing Go PlugPlay.
3.7 Advanced Power Management
The BIOS has support for Advanced Power Management (APM version 1.2). The energy saving
Stand By mode can be initiated by a keyboard hot key sequence set by the user, a time-out period
set by the user, or by a sleep/resume button tied to the front panel sleep connector.
When in Stand-by mode, the motherboard reduces power consumption by utilizing the Pentium
processor’s System Management Mode (SMM) capabilities and also spinning down hard drives
and turning off VESA DPMS compliant monitors. The user may select which DPMS mode (Stand
By, Suspend, or Off) is sent to the monitor in Setup. The ability to respond to external interrupts is
fully maintained while in Stand-by mode allowing the system to service requests such as in-coming
47
NP430HX ATX Motherboard Technical Product Specification
faxes or network messages while unattended. Any keyboard or mouse activity brings the system
out of the energy saving Stand By mode. When this occurs the monitor and IDE drives are turned
back on immediately.
APM is enabled in BIOS by default, however, the system must be configured with an APM driver
in order for the system power saving features to take effect. Windows 95 enables APM
automatically upon detecting the presence of the APM BIOS.
3.8 Language Support
The BIOS setup screen and help messages are supported in 32 languages. There are five languages
available at this time; American English, German, Italian, French, and Spanish. Translations of
other languages could become available at a later date.
With a 2 Mb Flash BIOS, only two languages can be resident at a time. The default language is
American English, and is always present unless another language is programmed into the BIOS
using the Flash Memory Update Program (FMUP) available on the Intel BBS. American English
is the only language present in the standard BIOS.
3.9 Boot Options
Booting from CD-ROM is supported in adherence to the “El Torito” bootable CD-ROM format
specification developed by Phoenix Technologies and IBM. Under the Boot Options field in setup,
CD-ROM is one of four possible boot devices which are defined in priority order. The default
setting is for floppy to be the primary boot device and hard drive to be the secondary boot device.
If CD-ROM is selected, it must be the first device. The third and fourth devices are set to disabled
in the default configuration. The user can add also select network as a boot device. The network
option allows booting from a network add-in card with a remote boot ROM installed.
✏
NOTE
A copy of “El Torito” is available on Phoenix Web page (http://www.ptltd.com/techs/specs.html).
3.10 Flash Logo Area
The motherboard supports a 4 KB programmable Flash user area located at FFFE8000 FFFE8FFF. An OEM may use this area to display a custom logo. The BIOS accesses the user
area just after completing POST. A utility is available from Intel to assist with installing a logo
into Flash for display during POST. Contact your local Intel Sales office for further information.
3.11 BIOS Setup Access Jumper
The BIOS Setup enable jumper can be set to enable or disable access to the Setup utility. Default
is for access to be enabled (1-2 position). Moving the jumper to the 2-3 position disables access.
See section 1.13.4 for more information.
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Motherboard BIOS and Setup Utility
3.12 BIOS Setup Utility
The Setup utility allows the configuration to be modified without opening the system for most
basic changes. The Setup utility is accessible only during the Power-On Self Test (POST) by
pressing the <F1> key after the POST memory test has begun and before boot begins. A prompt
may be enabled that informs users to press the <F1> key to access Setup. The BIOS Setup access
jumper can be set to prevent user access to Setup for security purposes. See section 1.13.4 for more
information
3.12.1
Overview of the Setup Menu Screens
The Setup program initially displays the Main menu screen. In each screen there are options for
modifying the system configuration. Select a menu screen by pressing the left <←> or right <→>
arrow keys. Use the up <↑> or down <↓> arrow keys to select items in a screen. Use the <Enter>
key to select an item for modification. For certain items, pressing <Enter> brings up a subscreen.
After you have selected an item, use the arrow keys to modify the setting.
Table 15.
Overview of the Setup Menu Screens
Setup Menu Screen
Description
Main
For setting up and modifying some of the basic options of a PC, such as
time, date, diskette drives, hard drives.
Advanced
For modifying the more advanced features of a PC, such as peripheral
configuration and advanced chipset configuration.
Security
For specifying passwords that can be used to limit access to the system.
Exit
For saving or discarding changes.
Setup Subscreen
Description
Floppy Options
For configuring your diskette drives.
IDE Device Configuration
For configuring your IDE devices.
Boot Options
For modifying options that affect the system boot up, such as the boot
sequence.
Peripheral Configuration
For modifying options that affect the serial ports, the parallel port, and the
disk drive interfaces.
Audio Configuration
For modifying options that affect onboard audio resources.
Advanced Chipset
Configuration
For modifying options that affect memory and system busses.
Power Management
Configuration
For accessing and modifying Advanced Power Management (APM) options.
Plug and Play
Configuration
For modifying options that affect the system’s Plug and Play capabilities.
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NP430HX ATX Motherboard Technical Product Specification
3.12.2
Main BIOS Setup Screen
This section describes the Setup options found on the main menu screen. If you select certain
options from the main screen (e.g., Hard Disk), the Setup program switches to a subscreen for the
selected option.
3.12.2.1
System Date
Specifies the current date. Select the month from a pop-up menu.
3.12.2.2
System Time
Specifies the current time.
3.12.2.3
Floppy Options
When selected, this pops up the Floppy Options menu.
3.12.2.4
Primary Master
Reports if an IDE device is connected to the system. When selected, this brings up the IDE Device
Configuration subscreen.
3.12.2.5
Primary Slave
Reports if an IDE device is connected to the system. When selected, this brings up the IDE Device
Configuration subscreen.
3.12.2.6
Secondary Master
Reports if an IDE device is connected to the system. When selected, this brings up the IDE Device
Configuration subscreen.
3.12.2.7
Secondary Slave
Reports if an IDE device is connected to the system. When selected, this brings up the IDE Device
Configuration subscreen.
3.12.2.8
Language
Specifies the language of the text strings used in the Setup program and the BIOS. The options are
any installed languages.
3.12.2.9
Boot Options
When selected, this brings up the Boot Options subscreen.
3.12.2.10
Video Mode
Reports the video mode. There are no options.
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Motherboard BIOS and Setup Utility
3.12.2.11
Mouse
Reports if a mouse is installed or not. There are no options.
3.12.2.12
Base Memory
Reports the amount of base memory. There are no options.
3.12.2.13
Extended Memory
Reports the amount of extended memory. There are no options.
3.12.3
3.12.3.1
Floppy Options Subscreen
Floppy A:
Reports if a diskette drive is connected to the system. There are no options.
3.12.3.2
Floppy B:
Reports if a second diskette drive is connected to the system. There are no options.
3.12.3.3
Floppy A: Type
Specifies the physical size and capacity of the diskette drive. The options are Disabled, 360 KB,
5.25-inch; 1.2 MB, 5.25-inch; 720 KB, 3.5-inch; 1.44/1.25 MB, 3.5-inch; 2.88 MB, 3.5-inch. The
default is 1.44/1.25 MB, 3.5-inch.
3.12.3.4
Floppy B: Type
Specifies the physical size and capacity of the diskette drive. The options are Disabled, 360 KB,
5.25-inch; 1.2 MB, 5.25-inch; 720 KB, 3.5-inch; 1.44/1.25 MB, 3.5-inch; 2.88 MB, 3.5-inch. The
default is Disabled.
3.12.3.5
Floppy Access
Specifies read/write access for all attached floppy drives. The options are Read/Write and Read
Only. The default is Read/Write.
3.12.4
3.12.4.1
IDE Device Configuration Subscreen
IDE Device Configuration
Used to manually configure the hard drive or have the system auto configure it. The options are
Auto Configured, User Definable and Disabled. The default is Auto Configured. If you select
User Definable then the Number of Cylinders, Number of Heads, and Number of Sectors items can
be modified.
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NP430HX ATX Motherboard Technical Product Specification
3.12.4.2
Number of Cylinders
If IDE Device Configuration is set to User Definable, you must type the correct number of
cylinders for your hard disk. If Hard Disk Type is set to Auto Configured, this reports the number
of cylinders for your hard disk and cannot be modified.
3.12.4.3
Number of Heads
If IDE Device Configuration is set to User Definable, you must type the correct number of heads
for your hard disk. If Hard Disk Type is set to Auto Configured, this reports the number of heads
for your hard disk and cannot be modified.
3.12.4.4
Number of Sectors
If IDE Device Configuration is set to User Definable, you must type the correct number of sectors
for your hard disk. If Hard Disk Type is set to Auto Configured, this reports the number of sectors
for your hard disk and cannot be modified.
3.12.4.5
Maximum Capacity
Reports the maximum capacity of your IDE Device. It is calculated from the number of cylinders,
heads, and sectors. There are no options here.
3.12.4.6
IDE Translation Mode
Specifies the IDE translation mode. The options are Standard CHS (standard cylinder head sector
−less than 1024 cylinders), Logical Block, Extended CHS (extended cylinder head sector−greater
than 1024 cylinders), and Auto Detected (BIOS detects IDE drive support for LBA). The default is
Auto Detected.
CAUTION
Do not change this from the option selected when the hard drive was formatted. Changing the
option can result in corrupted data.
3.12.4.7
Multiple Sector Setting
Sets the number of sectors transferred by an IDE drive per interrupt generated. The options are
Disabled, 4 Sectors/Block, 8 Sectors/Block, or Auto Detected. The default is Auto Detected.
Check the specifications for your hard disk drive to determine which setting provides optimum
performance for your drive.
3.12.4.8
Fast Programmed I/O Modes
Sets how fast transfers on the IDE interface occur. The options are Disabled or Auto Detected.
The default is Auto Detected. If set to Disabled, transfers occur at a less-than-optimized speed. If
set to Auto Detected, transfers occur at drive’s maximum speed.
3.12.5
Boot Options Subscreen
This section describes the options available on the Boot Options subscreen.
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Motherboard BIOS and Setup Utility
3.12.5.1
First, Second, Third, Fourth Boot Device
Sets which drives the system checks to find an operating system to boot from. The following
options are available:
First Boot Device:
Select Disabled, Floppy, Hard Disk, CD-ROM, Network.
Second, Third, Fourth Device:
Select Disabled, Floppy, Hard Disk, Network.
3.12.5.2
System Cache
Enables or disables both the primary and the secondary cache memory. The options are Enabled or
Disabled. The default is Enabled.
3.12.5.3
Boot Speed
Sets the system’s boot speed. The options are Deturbo and Turbo. The default is Turbo. If Turbo
is selected, boot-up occurs at full speed. If Deturbo is selected, the board operates at a slower
speed.
3.12.5.4
Num Lock
Sets the beginning state of the Num Lock feature on your keyboard. The options are On and Off.
The default is Off.
3.12.5.5
Setup Prompt
Turns on (or off) the “Press <F1> Key if you want to run Setup” prompt during the power-up
sequence. The options are Enabled and Disabled. The default is Enabled.
✏
NOTE
This option has no effect on your ability to access the Setup program. It only toggles the prompt.
3.12.5.6
Hard Disk Pre-Delay
Adds a delay before the first access of a hard disk by the BIOS. Some hard disks hang if accessed
before they have initialized themselves. This delay ensures that the hard disk has initialized after
power-up, prior to being accessed.
3.12.5.7
Typematic Rate Programming
Sets the typematic rates. The options are Default and Override. The default is Default. Choosing
Override enables Typematic Rate Delay and Typematic Rate.
3.12.5.8
Typematic Rate Delay
Sets how long it takes for the key-repeat function to start when you hold down a key on the
keyboard. The options are 250, 500, 750, and 1000 millisecond delays. The default is 250. If
Typematic Rate Programming is set to Default, this option is not visible.
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NP430HX ATX Motherboard Technical Product Specification
3.12.5.9
Typematic Rate
Sets the speed at which characters repeat when you hold down a key on the keyboard. The higher
the number, the faster the characters repeat. The options are 6, 8, 10, 12, 15, 20, 24, and 30
characters per second. The default is 6. If Typematic Rate Programming is set to Default, this
option is not visible.
3.12.5.10
Scan User Flash Area
When enabled, allows user flash area to be scanned. Default is disabled.
3.12.5.11
Boot Virus Detection
Boot virus detection screens the BIOS and boot sectors for any known virus. Default is enabled.
3.12.6
Advanced Screen
This section describes the Setup options found on the Advanced menu screen. If you select certain
options from the Advanced screen (e.g., Peripheral Configuration), the Setup program switches to a
subscreen for the selected option. Subscreens are described in the sections following the
description of the Advanced screen options.
3.12.6.1
Processor Type
Reports the CPU type. There are no options.
3.12.6.2
Processor Speed
Reports the CPU clock speed. There are no options.
3.12.6.3
Cache Size
Reports the size of the secondary cache. There are no options. If your system contains no L2
cache, this item doesn’t appear.
3.12.6.4
Peripheral Configuration
When selected, this brings up the Peripheral Configuration subscreen.
3.12.6.5
Audio Configuration
When selected, this brings up the Audio Configuration subscreen.
3.12.6.6
Advanced Chipset Configuration
When selected, this brings up the Advanced Chipset Configuration subscreen.
3.12.6.7
Power Management Configuration
When selected and enabled, this brings up the Advanced Power Management subscreen.
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Motherboard BIOS and Setup Utility
3.12.6.8
Plug and Play Configuration
When selected, this brings up the Plug and Play Configuration subscreen.
3.12.6.9
Event Logging Configuration
When selected, this brings up the Event Logging Configuration subscreen.
3.12.7
Peripheral Configuration Subscreen
This section describes the screens for the peripheral configuration subscreen.
3.12.7.1
PCI IDE Interface
Enables or disables the PCI IDE hard disk interface. The first line configures the Primary PCI IDE
Interface; the second line configures the Secondary PCI IDE Interface. Options are Auto
Configured and Disabled. The default is Auto Configured. (If Configuration Mode is set to Auto
Configured, this option cannot be modified.)
3.12.7.2
Floppy Interface
Enables or disables the diskette drive interface. The options are Enabled, Disabled, and Auto
Configured. The default is Auto Configured. (If Configuration Mode is set to Auto Configured,
this option cannot be modified.)
3.12.7.3
Serial Port 1 Address
Selects the address of serial port 1. The options are:
•
Disabled;
•
COM1, 3F8h, IRQ4;
•
COM2, 2F8h, IRQ3;
•
COM3, 3E8h, IRQ4;
•
COM1, 3F8, IRQ3;
•
COM2, 2F8, IRQ4;
•
COM3, 3F8, IRQ3; and
•
Auto Configured (default).
If the Configuration Mode is set to Auto Configured, the Setup program assigns the first free COM
port (normally COM1, 3F8h, IRQ4) as the serial port 1 address, regardless of what is selected
under the Serial Port 1 Address option. (If Configuration Mode is set to Auto Configured, this
option cannot be modified.)
3.12.7.4
Serial Port 2 Address
Selects the address of serial port 2. The options are:
•
Disabled;
•
COM1, 3F8h, IRQ4;
55
NP430HX ATX Motherboard Technical Product Specification
•
COM2, 2F8h, IRQ3;
•
COM3, 3E8h, IRQ4;
•
COM1, 3F8, IRQ3;
•
COM2, 2F8, IRQ4;
•
COM3, 3F8, IRQ3; and
•
Auto Configured (default).
If the Configuration Mode is set to Auto Configured, the Setup program assigns the first free COM
port (normally COM2, 2F8h) as the serial port 2 address, regardless of what is selected under the
Serial Port 2 Address option. (If Configuration Mode is set to Auto Configured, this option cannot
be modified.)
✏
NOTE
If either serial port address is set, the address it is set to will not appear in the options dialog box
of the other serial port. If an ATI mach32† or an ATI mach64 video controller is active, the
COM4, 2E8h address will not appear in the options dialog box of either serial port.
3.12.7.5
Serial Port 2 IR Mode
Makes Serial Port 2 available to infrared applications. The options are Enabled and Disabled. The
default is Disabled. (If Configuration Mode is set to Auto, this option cannot be modified.)
3.12.7.6
Parallel Port Address
Selects the address and IRQ of the parallel port. The options are:
•
Disabled;
•
LPT1, 378h, IRQ7, DMA3;
•
LPT2, 278h, IRQ7, DMA3;
•
LPT1, 378h, IRQ5, DMA3;
•
LPT2, 278h, IRQ5, DMA3;
•
LPT1, 378h, IRQ7, DMA1;
•
LPT2, 278h, IRQ7, DMA1;
•
LPT1, 378h, IRQ5, DMA1;
•
LPT2, 278h, IRQ5, DMA1; and
•
Auto Configured (default).
The default is Auto Configured. If the Configuration Mode is set to Auto Configured, the setup
program assigns LPT1, 378h, IRQ7 as the parallel port address, regardless of what is selected
under the Parallel Port Address option. (If Configuration Mode is set to Auto Configured, this
option cannot be modified.)
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Motherboard BIOS and Setup Utility
3.12.7.7
Parallel Port Mode
Selects the mode for the parallel port. The options are Compatible, Bidirectional, EPP, and ECP.
The default is Compatible. Compatible means the parallel port operates in AT-compatible mode.
Bidirectional means the parallel port operates in bidirectional PS/2-compatible mode. EPP and
ECP mean the parallel port operates high-speed, bidirectionally. This option is not affected by the
Configuration Mode field above.
3.12.7.8
USB Interface
Default is Enabled. If Disabled, the two USB ports are disabled.
3.12.7.9
Hardware Monitor Interface
Enables or disables the hardware monitor extension interface. The options are Enabled and
Disabled. The default is Enabled.
3.12.7.10
PCI LAN Interface
Enables or disables the onboard PCI LAN interface. The options are Enabled and Disabled. The
default is Enabled.
3.12.7.11
Onboard Peripheral Status Information
Six lines at the bottom of the screen display the status of various onboard peripherals: Primary PCI
IDE, Secondary PCI IDE, Floppy, Serial Port 1, Serial Port 2, and Parallel Port. If you make a
change to the configuration of any of these peripherals, the change will not appear in these status
lines until after the next restart.
3.12.8
Audio Configuration
This section describes the options available on the Audio Configuration Subscreen.
3.12.8.1
Configuration Mode
Enables you to choose between setting the audio configuration yourself or having the computer do
it automatically. The options are:
•
Disabled
•
Manual
•
Auto Configured (default)
When Auto Configured is selected, the audio resources are automatically configured at power-up;
the options listed below cannot be modified. The settings displayed for those options reflect the
current hardware settings. When Manual mode is selected, you can modify the options listed
below.
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NP430HX ATX Motherboard Technical Product Specification
3.12.8.2
SB Base Port Address
Selects the Sound Blaster base port address. The options are:
•
Disabled
•
220h (default)
•
240h
3.12.8.3
WSS Base Port Address
Selects the Windows sound system base port address. The options are:
•
Disabled
•
530h (default)
•
E80h
•
F40h
•
604h
3.12.8.4
MPU-401 Base Port Address
Selects the MPU-401 base port address. The options are:
•
Disabled
•
330h (default)
•
332h
•
334h
•
300h
3.12.8.5
WSS Interrupt
Selects the Windows sound system interrupt. The options are:
•
Disabled (default)
•
IRQ7
•
IRQ9
•
IRQ10
•
IRQ11
3.12.8.6
SB Play / MPU-401 Interrupt
Selects the Sound Blaster playback / MPU-401 interrupt. The options are:
58
•
Disabled (default)
•
IRQ5
•
IRQ7
•
IRQ9
•
IRQ10
Motherboard BIOS and Setup Utility
3.12.8.7
WSS Play DMA
Selects the Windows sound system playback DMA channel. The options are:
•
Disabled
•
Channel 0 (default)
•
Channel 1
•
Channel 3
3.12.8.8
SB Play / WSS Capture DMA
Selects the Sound Blaster playback / Windows sound system record DMA channel. The options
are:
•
Disabled
•
Channel 1 (default)
If WSS Play DMA is not disabled, the following are the valid configurations between WSS Play
DMA and SB Play / WSS Capture DMA:
WSS Play DMA
SB Play / WSS Capture DMA
Disabled
Disabled
Channel 0
Disabled
Channel 1
Disabled
Channel 3
Disabled
Disabled
Channel 1
Channel 0
Channel 1
Channel 1
Channel 0
Channel 3
Channel 0
If WSS Play DMA is disabled, SB Play / WSS Capture DMA has these options:
•
Disabled
•
Channel 0
•
Channel 1
•
Channel 3
3.12.9
Advanced Chipset Configuration Subscreen
This section describes the options available on the Advanced Chipset Configuration Subscreen. It
shows the type of memory installed, and in what banks.
3.12.9.1
Base Memory Size
Sets the size of the base memory. The options are 512 KB and 640 KB. The default is 640 KB.
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NP430HX ATX Motherboard Technical Product Specification
3.12.9.2
ISA LFB Size
Sets the size of the linear frame buffer. The options are Disabled, 1 MB, 2MB, and 4MB. The
default is Disabled. When the LFB size is set to 1 MB, 2MB, or 4MB, the ISA LFB Base Address
field is set to 15 MB, 14 MB, or 12 MB, respectively.
3.12.9.3
ISA LFB Base Address
Reports the base address of the LFB. There are no options. This field will not appear if the ISA
LFB Size is set to Disabled.
3.12.9.4
Video Palette Snoop
Controls the ability of a primary PCI graphics controller to share a common palette with an ISA
add-in video card. The options are Enabled and Disabled. The default is Disabled.
3.12.9.5
Latency Timer (PCI Clocks)
Sets the length of time an agent on the PCI bus can hold the bus when another agent has requested
the bus. Valid numbers are between 0 and 256. The default is 66.
3.12.10
Power Management Configuration Subscreen
This section describes the options available on the Power Management Subscreen.
3.12.10.1
Advanced Power Management
Enables or disables the Advanced Power Management (APM) support in your system’s BIOS. The
options are Enabled and Disabled. The default is Enabled. Power Management works only with
APM-capable operating systems to manage power consumption in your system. If Advanced
Power Management is set to Disabled, none of the fields in the Advanced Power Management
subscreen will be visible.
3.12.10.2
IDE Drive Power Down
Sets any IDE drives to spin down when the system goes into power managed mode. The options
are Enabled and Disabled. The default is Enabled.
3.12.10.3
VESA Video Power Down
Sets the command issued to your graphics card when the system goes into power managed mode.
The options are Disabled, Standby, Suspend, and Sleep. The default is Sleep.
3.12.10.4
Inactivity Timer
Sets how long the system must be inactive before it enters power managed mode. Enter the
number of minutes. The range is 0 to 255 minutes. The default is 10 minutes.
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Motherboard BIOS and Setup Utility
3.12.10.5
Hot Key
Sets the hot key that, when pressed while holding down the <Ctrl> and <Alt> keys, causes the
system to enter power managed mode. All alphabetic keys are valid.
3.12.11
Plug and Play Configuration Subscreen
This section describes the options found on the Plug and Play configuration subscreen.
3.12.11.1
Configuration Mode
Sets how the BIOS gets information about ISA cards that do not have Plug and Play capabilities.
The options are Use BIOS Setup and Use PnP OS. The default is Use PnP OS.
If Use ICU is selected, the BIOS relies on run-time software to ensure that there are no conflicts
between ISA boards with Plug and Play capabilities and those without. Only Boot With PnP OS
will be visible.
3.12.11.2
Boot with PnP OS
Enables the PC to boot with an operating system capable of managing Plug and Play add-in cards.
The options are Disabled, Other PnP OS, and Windows 95. The default is Windows 95.
3.12.11.3
ISA Shared Memory Size
Enables you to specify a range of memory addresses directed to the ISA bus rather than onboard
memory. The options are Disabled, 16 KB, 32 KB, 48 KB, 64 KB, 80 KB, and 96 KB. The
default is Disabled. If this is set to Disabled, the ISA Shared Memory Base Address (described
below) will not be visible.
This field should be set to Enabled only when using a non-Plug-and-Play ISA card (legacy card)
that requires non-ROM memory space. LAN cards that have onboard memory buffers are one
example of this; video capture cards that have video buffer memory are another.
Shadowing is a technique that copies a block of memory from an add-in card’s ROM to the same
address in system DRAM memory. This provides faster access and achieves higher performance.
By default, allocation of upper memory is as follows: memory from C0000-C7FFF is
automatically shadowed. (This memory range is typically reserved for video BIOS.) Memory
from C8000-DFFFFh is initially unshadowed. The BIOS scans this range for any ISA expansion
card BIOSes that may be present and notes their location and size. The BIOS then autoconfigures
the PCI and Plug and Play devices, shadowing the ROM requirements (other than video) into the
area above E0000h until that area is full. It then assigns additional PCI and Plug and Play
expansion cards to the area between C8000h and DFFFFh. If an ISA legacy card has non-ROM
memory requirements, the autoconfigure routine may write into an area that is needed by the ISA
expansion card. The ISA Shared Memory Size parameter signifies the autoconfigure routine that
this block of memory is reserved and should not be shadowed.
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NP430HX ATX Motherboard Technical Product Specification
3.12.11.4
ISA Shared Memory Base Address
Sets the base address for the ISA Shared Memory. The options are C8000h, CC000h, D0000h,
D4000h, D8000h, and DC000h. The default is C8000h. This setting could affect the ISA Shared
Memory Size item. The value entered in the ISA Shared Memory Size item cannot extend to the
E0000h address. For example, if a size of 64K was selected, options D4000h, D8000h, and
DC000h will not be available.
3.12.11.5
IRQ 3, 4, 5, 7, 9, 10, 11, 12, 14, 15
Sets the status of the IRQ. The options are Available and Used By ISA Card. The default is
Available. The PCI auto-configuration code looks here to see if these interrupts are available for
use by a PCI add-in board. If an interrupt is available, the PCI auto-configuration code can assign
the interrupt to be used by the system. If your system contains an ISA agent that uses one of these
interrupts, select Used By ISA Card for that interrupt.
✏
NOTE
IRQ 3, 4, 5, and 7 may not be available in this option, depending on the setting chosen for the
COM1, COM2 and parallel ports in the Peripheral Configuration Subscreen.
IRQ 14 and 15 will not show up as user available. If the onboard IDE controller is not used, these
interrupts will be available to ISA cards. These interrupts can not be used for PCI cards.
3.12.12
Event Logging Configuration
This section describes the options available in the Event Logging Configuration subscreen.
3.12.12.1
Event Log Capacity
This information field tells whether or not the log is full.
3.12.12.2
Event Log Count Granularity
This field determines the multiple of errors that cause an entry to be made in the event log. For
example, if the Event Log Count Granularity is 10, then an entry is made in the event log on the
1st, 11th, 21st, etc., occurrence of an error of a particular type within the time specified by the
Event Time Granularity value. Event Log Count Granularity is a one-byte parameter with possible
values 0 through 255 and a default of 10.
3.12.12.3
Event Time Granularity
Event Time Granularity determines the maximum amount of time that the system will wait before
making another event log entry upon occurrence of an event after the maximum number of counts
for that event type has been exceeded. Event Time Granularity is a one-byte parameter with
possible values 0 through 255 and a default of 30.
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Motherboard BIOS and Setup Utility
3.12.12.4
Event Log Control
This field allows users to enable or disable event logging (values: All Events Enabled or All Events
Disabled), or to enable event logging with ECC errors excluded from the event log (value: ECC
Events Disabled). The default is All Events Enabled.
3.12.12.5
Clear Event Log
This field sets a flag that clears the event log on the next pass through POST (value: On Next Boot)
or keeps the event log (value:Keep). The default is Keep.
3.12.12.6
Mark Existing Events as Read
This field marks all events already in the log as having been read (value:Mark) or not read
(value:Do Not Mark). The default is Do Not Mark.
3.12.12.7
Event Log Subscreens
The bottom of the Event Log screen includes several information fields that display information
about the date and time of the last event of a specific type, as well as a count of how many events
of that type are logged. Selecting a field and pressing Enter brings up a subscreen that shows
information specific to that event type. Event types for which subscreens are availalbe include:
•
•
•
•
•
•
Single Bit ECC Events
Multi-Bit ECC Events
Pre-Boot Events
Logging Disabled Certain Events
System Limit Exceeded Events
Boot Virus Detection Events
3.12.13
Security Screen
This section describes the two access modes that can be set using the options found on the Security
screen, and then describes the Security screen options themselves.
3.12.13.1
Administrative and User Access Modes
The options on the Security screen menu make it possible to restrict access to the Setup program
by enabling you to set passwords for two different access modes: Administrative mode and User
mode.
In general, Administrative mode has full access to the Setup options, whereas User mode has
restricted access to the options. Thus, by setting separate Administrative and User passwords, a
system administrator can limit who can change critical Setup values. The actual limitations depend
on whether either the Administrative or User passwords or both are set. (See the table below for a
description of how the passwords actually work together.)
To limit access to who can boot the system, set the User password. This is the password that the
system asks for before booting. If only the Administrative password is set, the system boots up
without asking for a password. If both passwords are set, you can enter either password to boot the
system.
63
NP430HX ATX Motherboard Technical Product Specification
The following table shows the effects of setting the Administrative and User passwords. (The table
is for reference only, and is not shown on the Security screen.) In the table, the statement “Can
change a limited number of options” means you can change the system date and time, the power
management hot key, the User password, the security hot key, and unattended start.
Table 16.
Administrative and User Password Functions
Administrative mode
can . . .
User mode
can . . .
Password Required During
Boot Process
Neither
Can change all
options*
Can change all
options*
None
Administrative only
Can change all options Can change a limited
number of options
User only
N/A
Both
Can change all options Can change a limited
number of options
Password Set
*
None
Can change all options User
Administrative or User
If no password is set, any user can change all Setup options.
3.12.14
3.12.14.1
Security Screen Options
User Password is
Reports if there is a User password set. There are no options.
3.12.14.2
Administrative Password is
Reports if there is an Administrative password set. There are no options.
3.12.14.3
Set User Password
Sets the User password. The password can be up to seven alphanumeric characters.
3.12.14.4
Set Administrative Password
Sets the Administrative password. The password can be up to seven alphanumeric characters.
3.12.14.5
Unattended Start
Controls when the security password is requested. The options are Enabled and Disabled. The
default is Disabled. The User password must be enabled before you can enable this option. If
Enabled is selected, the system boots, but the keyboard will be locked until the User password is
entered.
3.12.14.6
Security Hot Key (CTRL-ALT-)
Sets a hot key that, when pressed, locks the keyboard until the User password is entered. The
Keyboard LEDs flash to indicate that the keyboard is locked. When you enter the User password,
you do not have to press the <Enter> key.
64
Motherboard BIOS and Setup Utility
3.12.15
Exit Screen
This section describes the different ways to exit and save or not save changes made in the Setup
program.
3.12.15.1
Exit Saving Changes
Saves the changes to CMOS RAM and exits the Setup program. You can also press the <F10> key
anywhere in the Setup program to do this.
3.12.15.2
Exit Discarding Changes
Exits the Setup program without saving any changes. This means that any changes made while in
the Setup program are discarded and NOT SAVED. Pressing the <Esc> key in any of the four
main screens will do this.
3.12.15.3
Load Setup Defaults
Resets all of the setup options to their defaults. You can also press the <F5> key anywhere in the
Setup program to do this.
This selection loads the default Setup values from the ROM table.
3.12.15.4
Discard Changes
Discards any changes you made during the current Setup session without exiting the program. You
can also press the <F6> key anywhere in the Setup program to do this.
This selection loads the CMOS RAM values that were present when the system was turned on.
65
4 Error Messages and Beep Codes
4.1 BIOS Beep Codes
Beeps
Error Message
Description
1
Refresh Failure
The memory refresh circuitry on the motherboard is faulty.
2
Parity Error
A parity error has occured in system memory.
3
Base 64 KB Memory Failure
Memory failure in the first 64 KB.
4
Timer Not Operational
Memory failure in the first 64 KB of memory, or Timer 1 on the
motherboard is not functioning.
5
Processor Error
The CPU on the motherboard generated an error.
6
8042 - Gate A20 Failure
The keyboard controller may be bad. The BIOS cannot switch to
protected mode.
7
Processor Exception Interrupt
Error
The CPU generated an exception interrupt.
8
Display Memory Read/Write
Error
The system video adapter is either missing or its memory is
faulty. This is not a fatal error.
9
ROM Checksum Error
ROM checksum value does not match the value encoded in
BIOS.
10
CMOS Shutdown Register
Rd/Wrt Error
The shutdown register for CMOS RAM failed.
67
NP430HX ATX Motherboard Technical Product Specification
4.2 PCI Configuration Error Messages
The following PCI messages are displayed as a group with bus, device, and function information.
68
Message
Explanation
Bad PnP Serial ID Checksum
The Serial ID checksum of a Plug and Play card
was invalid.
Floppy Disk Controller Resource Conflict
The floppy disk controller has requested a
resource that is already in use.
NVRAM Checksum Error, NVRAM Cleared
The ESCD data was reinitialized because of an
NVRAM checksum error. Try rerunning the ICU.
NVRAM Cleared By Jumper
The “Clear CMOS” jumper has been moved to the
“Clear” position and CMOS RAM has been
cleared.
NVRAM Data Invalid, NVRAM Cleared
Invalid entry in the ESCD.
Parallel Port Resource Conflict
The parallel port has requested a resource that is
already in use.
PCI Error Log is Full
This message is displayed when more than 15
PCI conflict errors are detected. No additional
PCI errors can be logged.
PCI I/O Port Conflict
Two devices requested the same resource,
resulting in a conflict.
PCI IRQ Conflict
Two devices requested the same resource,
resulting in a conflict.
PCI Memory Conflict
Two devices requested the same resource,
resulting in a conflict.
Primary Boot Device Not Found
The designated primary boot device (hard disk
drive, diskette drive, or CD-ROM drive) could not
be found.
Primary IDE Controller Resource Conflict
The primary IDE controller has requested a
resource that is already in use.
Primary Input Device Not Found
The designated primary input device (keyboard,
mouse, or other, if input is redirected) could not
be found.
Secondary IDE Controller Resource Conflict
The secondary IDE controller has requested a
resource that is already in use.
Serial Port 1 Resource Conflict
Serial port 1 has requested a resource that is
already in use.
Serial Port 2 Resource Conflict
Serial port 2 has requested a resource that is
already in use.
Static Device Resource Conflict
A non Plug and Play ISA card has requested a
resource that is already in use.
System Board Device Resource Conflict
A non Plug and Play ISA card has requested a
resource that is already in use.
Error Messages and Beep Codes
4.3 BIOS Error Messages
Error Message
Explanation
8042 Gate - A20 Error
Gate A20 on the keyboard controller is not working.
Address Line Short!
Error in the address decoding circuitry on the motherboard.
Cache Memory Bad, Do Not
Enable Cache!
Cache memory is defective. Replace it.
CH-2 Timer Error
Most AT systems include two timers. There is an error in timer 2.
CMOS Battery State Low
CMOS RAM is powered by a battery. The battery power is low. Replace the
battery.
CMOS Checksum Failure
After CMOS RAM values are saved, a checksum value is generated for error
checking. The previous value is different from the current value. Run Setup.
CMOS System Options Not
Set
The values stored in CMOS RAM are either corrupt or nonexistent. Run
Setup.
CMOS Display Type
Mismatch
The video type in CMOS RAM does not match the type detected by the
BIOS. Run Setup.
CMOS Memory Size
Mismatch
The amount of memory on the motherboard is different than the amount in
CMOS RAM. Run Setup.
CMOS Time and Date Not
Set
Run Setup to set the date and time in CMOS RAM.
Diskette Boot Failure
The boot disk in floppy drive A: is corrupt. It cannot be used to boot the
system. Use another boot disk and follow the screen instructions.
Display Switch Not Proper
The display jumper is not implemented on this product, this error will not
occur.
DMA Error
Error in the DMA controller.
DMA #1 Error
Error in the first DMA channel.
DMA #2 Error
Error in the second DMA channel.
FDD Controller Failure
The BIOS cannot communicate with the floppy disk drive controller. Check
all appropriate connections after the system is powered down.
HDD Controller Failure
The BIOS cannot communicate with the hard disk drive controller. Check all
appropriate connections after the system is powered down.
INTR #1 Error
Interrupt channel 1 failed POST.
INTR #2 Error
Interrupt channel 2 failed POST.
Invalid Boot Diskette
The BIOS can read the disk in floppy drive A:, but cannot boot the system.
Use another boot disk.
continued ☛
69
NP430HX ATX Motherboard Technical Product Specification
BIOS Error Messages (continued)
Error Message
Explanation
Keyboard Is Locked...Unlock
It
The keyboard lock on the system is engaged. The system must be unlocked
to continue.
Keyboard Error
There is a timing problem with the keyboard. Set the Keyboard option in
Setup to Not Installed to skip the keyboard POST routines.
KB/Interface Error
There is an error in the keyboard connector.
Off Board Parity Error
Parity error in memory installed in an expansion slot. The format is:
OFF BOARD PARITY ERROR ADDR (HEX) = (XXXX)
XXXX is the hex address where the error occurred.
On Board Parity Error
Parity is not supported on this product, this error will not occur.
Parity Error ????
Parity error in system memory at an unknown address.
4.4 ISA NMI Messages
70
ISA NMI Message
Explanation
Memory Parity Error at
xxxxx
Memory failed. If the memory location can be determined, it is displayed as
xxxxx. If not, the message is Memory Parity Error ????.
I/O Card Parity Error at
xxxxx
An expansion card failed. If the address can be determined, it is displayed as
xxxxx. If not, the message is I/O Card Parity Error ????.
DMA Bus Time-out
A device has driven the bus signal for more than 7.8 microseconds.
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