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Performance/AU
Motherboard
Technical Product Specification
Order Number 281802-002
May 1996
The Performance/AU motherboard may contain design defects or errors known as errata which may cause the product to deviate from published
specifications. Current characterized errata are documented in the Performance/AU Motherboard Specification Update.
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 Performance/AU motherboard may contain design defects or errors known as errata which may cause the product to deviate from published
specifications. 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, Japan (fax only) 81-0-120-478-832, other Countries 708-296-9333
Copyright  1996, Intel Corporation
Performance/AU Technical Product Specification • Page 2
Revision History
Revision Date
December 15, 1995
May 15, 1996
Version
-001
-002
Description
First release of the Performance/AU Technical Product Specification.
Second release of the Performance/AU Technical Product Specification.
Preface
This product specification applies only to standard Performance/AU motherboards, identified by part number 633784-xxx
with BIOS identifier .CG0.
Changes will be published in the Performance/AU Motherboard Specification Update before being incorporated into a revision
of this document.
Performance/AU Technical Product Specification • Page 3
Performance/AU Motherboard
Technical Product Summary
Table of Contents
Introduction ..............................................................................................................................................................5
Board Level Features................................................................................................................................................6
CPU
Performance Upgrade
System Memory
Expansion Slots
Peripheral Component Interconnect (PCI) Chip Set
PC87306B Super I/O Controller
Motherboard BIOS
Front Panel Connections (J27)
Motherboard Connections
Power Consumption
Appendix A − User-Installable Upgrades ............................................................................................................... 14
Appendix B − Jumper Settings ............................................................................................................................... 15
Appendix C − Memory Map................................................................................................................................... 16
Appendix D − I/O Map ........................................................................................................................................... 17
Appendix E − PCI Configuration Space Map......................................................................................................... 18
Appendix F − Interrupts & DMA Channels ........................................................................................................... 19
Appendix G − Connectors....................................................................................................................................... 20
Appendix H − BIOS Setup...................................................................................................................................... 25
Appendix I − PCI Configuration Error Messages.................................................................................................. 34
Appendix J − BIOS Error messages and Beep Codes............................................................................................ 35
Appendix K − BIOS Updates.................................................................................................................................. 36
Appendix L − Environmental Standards ................................................................................................................ 37
Appendix M − Reliability Data ............................................................................................................................... 37
Performance/AU Technical Product Specification • Page 4
Introduction
The Performance/AU motherboard integrates the latest advances in processor, memory, and I/O technologies into a new ATX
form factor that combines performance, price, flexibility, and ease of use – making Performance/AU an ideal platform for the
increasing requirements of today's and tomorrow's desktop applications.
The flexible motherboard design will accept Intel’s Pentium Pro processor at 150 MHz, 166 MHz, 180 MHz and 200 MHz.
It has the scalability to accept faster Pentium Pro upgrades in the future, using the Type 8 Zero Insertion Force (ZIF) socket.
The Pentium Pro processor includes an integrated second level write-back cache of either 256 KB or 512 KB. The memory
subsystem supports up to 128 MB of DRAM using standard 72-pin SIMM sockets.
Intel's 82450 PCIset provides an integrated chip set for the Pentium Pro processor. The 82371 PIIX (PCI ISA/IDE accelerator)
provides an integrated Bus Mastering IDE controller with two high performance IDE interfaces for up to four devices, such as
hard drives or CD-ROM. The National PC87306B Ultra Super I/O controller provides the standard PC I/O functions: floppy
interface, two FIFO serial ports, one EPP/ECP capable parallel port, a Real Time Clock, and keyboard controller, as well as
support for an IrDA compatible infrared interface. Up to four PCI local bus slots provide a high bandwidth path for datamovement intensive functions such as graphics. Up to three ISA slots complete the I/O mix. A total of six expansion slots may
be populated: one PCI and ISA slot share the same chassis I/O panel. The new ATX form factor allows for all add-in slots,
both PCI and ISA, to be full length.
The Performance/AU complies with Version 2.0 of the PCI specification and 1.0A of the Plug and Play specification.
ATX FORM FACTOR
The ATX form factor has been defined to address four major areas of improvement required of today’s predominant form
factors, Baby-AT and LPX:
1) Enhance PC ease-of-use
2) Better support for current and future I/O
3) Reduce total system cost
4) Better support for future processor technology
ATX is an evolution of the popular Baby-AT form factor. By mounting the typical Baby-AT power supply on its side, it is
possible to rotate the motherboard through 90 degrees in the chassis. The processor is relocated away from the expansion
slots and the longer side of the board is used to host more on-board I/O connectors. Placing more I/O down on the
motherboard reduces cabling inside the box, lowering cost and improving reliability and ease-of-use. A flexible I/O panel
allows ATX to support all current and future I/O requirements. The ATX power supply, rather than blowing air out of the
chassis as in most Baby AT platforms, blows air into the chassis and over the processor, saving the cost of a secondary fan
in the system. System cost is further reduced by the higher integration of PC components onto the motherboard itself, saving
material, inventory holding and assembly costs.
2
7
6
3
4
5
POWER SUPPLY
1
➊ Double-high expandable I/O
➋ One chassis fan
➌ Processor located near power supply
➍ One power connector
➎ Connectors close to peripheral bays
➏ Easy to access system memory
3.5”
BAY
5.25”
BAY
➐ Six full-length slots
Figure 1: Summary of ATX features
The Performance/AU motherboard is designed to fit into an ATX form factor chassis. All board dimensions and mounting
hole locations are part of the ATX Motherboard Specification, which is available from your Intel sales representative, the
Intel Applications Support BBS, or via the World Wide Web at http://www.intel.com/pc-supp/motherbd/atx.html.
Performance/AU Technical Product Specification • Page 5
Board Level Features
Q
R
S
T
U
V
W
A – Type 8 Pentium Pro processor socket
B – 82451KX Memory Interface Component (MIC)
C – 82452KX Memory Data Path (MC-DP)
D – ATX-style power connector
E – 82453KX DRAM controller (MC-DC)
A
B
C
D
E
P
O
F
F – 82454KX PCI Bridge (PB)
G – Front Panel Connectors
H – Floppy Connector
I – Primary PCI IDE Connector
J – Secondary PCI IDE Connector
K – On-board Piezo speaker
L – PC87306B Super I/O Controller
M – Configuration Jumpers
N – Auxiliary Fan Connector
O – Auxiliary Hard Drive LED Connector
P – 82371FB PCI ISA/IDE Accelerator (PIIX)
N
M
L
K J I
H G
Figure 2: Performance/AU Layout diagram
CPU
The Performance/AU motherboard is designed to operate with Pentium Pro processors at 150 MHz, 166 MHz, 180 MHz
and 200 MHz. A patented on-board voltage regulator circuit provides the required CPU voltages from the 5 volt and 3.3 volt
taps off the ATX PC power supply. The Pentium Pro processor incorporates an integrated Level 2 cache, which previously
was implemented on the motherboard external to the processor. The Pentium Pro processor also has an advanced numeric
coprocessor which significantly increases the speed of floating point operations, while maintaining backward compatibility
with the Pentium and Intel486DX math coprocessors and complying with ANSI/IEEE standard 754-1985. The Pentium
Pro processor maintains binary compatibility with the 8086, 80286, i386, Intel486, and Pentium processors.
PERFORMANCE UPGRADE
A Type 8 Zero Insertion Force socket, along with a programmable voltage regulator for the CPU core, provides users with a
performance upgrade path to Pentium Pro OverDrive technology. The voltage regulator programming is automatic and
controlled by the Voltage ID (VID) pins of the processor.
SYSTEM MEMORY
The Performance/AU motherboard provides four 5 volt 72-pin SIMM sites for memory expansion. The sockets support 1M
x 32/36 (4 MB), 2M x 32/36 (8 MB), 4M x 32/36 (16 MB), and 8M x 32/36 (32 MB) single-sided, double-sided, parity or
non-parity Fast Page Mode SIMM modules. The maximum memory size, using four 8M x 36 SIMM modules, is 128 MB.
Memory timing requires 60 ns fast page devices. The minimum memory size, using two 1M x 36 SIMM modules is 8 MB.
Performance/AU does not support non-symmetric SIMMs, which have DRAMs with an unequal number of row and column
address lines. Tin lead SIMMs are required.
The board will accept non-parity 32-bit SIMMs, but error checking and correction (ECC) capability will not be supported in
that configuration. When parity SIMMs are installed, the BIOS will automatically detect them as such and enable ECC.
With ECC enabled, single bit errors will be automatically detected and corrected on the fly. Double bit errors will generate
an NMI interrupt.
The four sockets are arranged as Bank 0 (J15, J16) and Bank 1 (J14, J15), with each bank consisting of two sockets and
providing a 64-bit wide data path. A bank must be fully populated to be functional. Bank 0 only, Bank 1 only, or both banks
may be populated. Optimum performance will be achieved when both banks are populated. If both banks are populated, the
same size and type of SIMMs must be used in both banks. There are no jumper settings required for the memory size or
type, which is automatically detected by the system BIOS.
Performance/AU Technical Product Specification • Page 6
EXPANSION SLOTS
The ATX form-factor allows all six expansion slots on the Performance/AU motherboard to be populated with full-length
add-in cards. There are three ISA bus expansion connectors and four PCI expansion connectors. One slot is shared by
connectors that will accommodate either an ISA or a PCI expansion card, but not both at the same time; thus accounting for
the disparity between the number of slots and connectors. All four PCI expansion slots accept PCI bus master cards, and
fully support the PCI 2.0 specification.
PCI 3.3 VOLT CAPABILITIES
To maintain strict compliance with the PCI specification, the motherboard provides 3.3 volt power to the PCI slots
directly from the ATX power supply. The ATX power connector definition has three pins reserved for 3.3V.
PERIPHERAL COMPONENT INTERCONNECT (PCI) CHIP SET
The Intel 82450 PCIset consists of the 82454KX PCI Bridge (PB), the 82451KX Memory Interface Component (MIC), and
the two-chip 82452KX and 82543KX Memory Controller (MC). The two MC chips represent one load on the Pentium Pro
system bus. One chip is the DRAM Control chip (MC-DC), and the other is the Data Path chip (MC-DP). The 82371FB
PCI ISA/IDE Accelerator (PIIX) bridge, which is not part of the 82450 chip set, provides the bridge between the ISA and
PCI buses.
82454KX PCI BRIDGE (PB)
The PB provides a high performance interface between the Pentium Pro processor and the PCI bus. The PB comes in
a 304-pin QFP package and provides the following features:
• Synchronous Pentium Pro bus interface that supports either 50MHz, 60MHz or 66mhz external CPU clock
• Parity checking on Pentium Pro control signals
• ECC (error correcting code) protection on Pentium Pro data signals
• Synchronous PCI interface derived from the external CPU clock
• Support for multiple I/O bridges through either internal or external I/O bridge arbitration.
• Four cache line size inbound/outbound data buffers
82453KX (MC-DC) AND 82452KX (MC-DP) MEMORY CONTROLLER
The MC is the interface between the system memory and the Pentium Pro processor bus. The MC DRAM control
chip (MC-DC) and the MC Data Path chip (MC-DP) work in parallel to provide a high performance memory
subsystem for Pentium Pro processor platforms. The MC-DC is a 208 pin PQFP device, and the MC-DP is a 240 pin
PQFP device. The MC has the following features:
• 8 or 1 deep in-order queue; four deep request queue
• Four cache line size read/write buffers
82451KX MEMORY INTERFACE COMPONENT (MIC)
There are four MIC components on the Performance/AU motherboard which provide data bus buffering and
interleave control to the memory array. Controlled by the MC, the MIC devices perform all the necessary byte and
word swapping required. Memory and I/O write buffers are included in these devices. The MIC devices are 144-pin
QFP packages, and provide the following performance enhancing features:
• Support for 4-way interleaved conventional DRAM (not supported in Performance/AU)
• Support for 2-way interleaved conventional DRAM (supported in Performance/AU only with four SIMMs)
82371FB PCI ISA/IDE ACCELERATOR (PIIX)
The 82371FB 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 82371FB integrates four 8-bit and three 16-bit DMA channels, three 8bit timer/counters, two eight-channel interrupt controllers, PCI-to-AT interrupt mapping circuitry, NMI logic, ISA
refresh address generation, and PCI/ISA bus arbitration circuitry together onto the same device. The PIIX comes in a
208-pin QFP package.
Detailed information on the PIIX is available in the Intel 82371FB data sheet.
Performance/AU Technical Product Specification • Page 7
IDE SUPPORT
The Performance/AU motherboard provides two independent high performance bus mastering PCI IDE channels
capable of supporting PIO 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. The system BIOS automatically detects the IDE device transfer rate and the translation mode capability.
The BIOS also supports the ability to boot from an ATAPI CDROM drive. The CDROM must have a valid boot
sector as described in the El Torrito Specification created by Phoenix Technologies.
A driver can be used to allow the IDE interface to operate as a PCI bus master, minimizing the system demands upon
the processor. In true multi-tasking operating systems like Windows* NT, the CPU bandwidth freed up by using bus
mastering IDE can be used to complete other tasks while disk transfers are occurring.
There are limitations when trying to use two IDE drives that have different transfer rate requirements on the same
IDE channel. Only one enhanced timing mode (Mode 3 or Mode 4) can be enabled per IDE channel. If an enhanced
timing mode drive (Mode 3 or Mode 4) shares the IDE channel with a Mode 0 drive, both drives will function at
their optimum transfer rate. However, if a Mode 4 drive shares the channel with a Mode 3 drive, both drives will be
configured for Mode 3 type transfer rates.
ATAPI devices can reside on the same channel as an ATA drive, however, advanced ATA modes are not supported
for ATAPI devices since they do not use the ATA protocol.
PC87306B SUPER I/O CONTROLLER
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
− Support for an IrDA compliant Infrared interface
• Multi-mode bi-directional 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/year
• Integrated 8042 compatible keyboard controller
The PC87306 is normally configured automatically by the BIOS, but configuration of these interfaces is also possible using
the CMOS Setup utility that can be invoked during boot. See the BIOS Setup appendix for details on the specific settings.
FLOPPY CONTROLLER
The PC87306B is software compatible with the DP8473 and 82077 floppy disk controllers. The floppy interface can
be configured in Setup for 360 KB or 1.2 MB 5¼” media or for 720 KB, 1.44/1.25 MB, or 2.88 MB 3½” media.
Configuring the floppy interface for 1.25 MB 3½” (3-mode floppy) requires the use of special floppy drives and a
driver for the specific operating system. To support 3-mode floppy drives, the motor speed is switched between 300
and 360 rpm. This allows support of the NEC PC98 (360 rpm), and the standard PC floppy media types (300 rpm).
The motor speed switch is used on Pin 2 of the floppy disk drive. Any drive that is compatible with the Pin 2 method
should be supported by the Intel BIOS.
The DMFF software distribution standard of 1.77 MB from Microsoft is also supported.
KEYBOARD INTERFACE
PS/2 keyboard/mouse connectors are located on the back panel side of the motherboard. The 5V lines to these
connectors are protected with a PolySwitch* circuit which acts much like a self-healing fuse, re-establishing 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 system BIOS can automatically detect whether a keyboard or a mouse is plugged into either PS/2 style connector
and configure the port accordingly.
The integrated 8042 compatible microcontroller contains the AMI Megakey keyboard/mouse controller code, which
besides providing traditional keyboard and mouse control functions, also supports Power-On/Reset (POR) password
Performance/AU Technical Product Specification • Page 8
protection. The POR password can be defined by the user via 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.
• <CTRL><ALT><defined in setup>: A security hot-key sequence provides password protection to the system.Note:
There are no hot key sequences for Turbo/Deturbo function. The Turbo/Deturbo status can only be set at boot time by
using the CMOS Setup Utility.
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, and
a 100-year calendar with alarm features. The RTC can be set via 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 Setup program. Also, the CMOS RAM values can be
cleared to system defaults by using a configuration jumper on the motherboard. Appendix B lists jumper
configurations.
An external coin-cell style battery provides power to the RTC and CMOS memory. The battery has an estimated
lifetime of three years if AC power is not provided to the power supply and is socketed for easy replacement. When
the system is plugged in, power is supplied from the ATX style power supply’s 5V standby current to extend the life
of the battery. See Appendix A for information regarding replacement batteries.
IRDA (INFRARED) SUPPORT
A 5-pin interface on the front panel I/O connector is provided to allow connection to a Hewlett Packard HSDSL-1000
compatible Infrared (IrDA) transmitter/receiver. Once the module is connected to the front panel I/O header, serial
port 2 can be redirected via on-the-fly via software to the IrDA module. When configured for IrDA, 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 115kbps from a distance of 1 meter.
MOTHERBOARD BIOS
The Performance/AU motherboard uses an Intel BIOS, which is stored in Flash EEPROM and easily upgraded using a
floppy disk-based program. BIOS upgrades will be available from the Intel Applications Support electronic bulletin board
service and from the Intel FTP site. In addition to the Intel BIOS, the Flash EEPROM also contains the Setup utility,
Power-On Self Tests (POST), update recovery code, and the PCI auto-configuration utility. This motherboard supports
system BIOS shadowing, allowing the BIOS to execute from 64-bit write-protected DRAM.
Information on generic BIOS functions can be found in the IBM PS/2 and Personal Computer BIOS Technical Reference
published by IBM, the ISA and EISA Hi-Flex AMIBIOS Technical Reference or the Programmer’s Guide to the AMIBIOS,
both published by AMI. These manuals are available at most technical bookstores.
FLASH MEMORY IMPLEMENTATION
The Intel PA28F200BX 2 Mb Flash component is organized as 256K x 8 (256 KB). The code in the Flash device is
compressed. At boot time, the code is decompressed and copied into shadowed DRAM. Different codes segments are
dynamically paged in and out of DRAM to reduce the actual amount of system memory space required. A detailed
memory map at run time is provided in Appendix C.
The write protected boot block area of the Flash device is used for BIOS recovery code.
BIOS UPGRADES
A new version of the BIOS can be installed from a diskette using the Flash Update utility. BIOS upgrades will be
available as downloadable files from the Intel Applications Support BBS and Intel FTP site.
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 the event that 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.
Performance/AU Technical Product Specification • Page 9
The upgrade utility ensures the upgrade BIOS extension matches the target system to prevent accidentally installing a
BIOS for a different type of system. A recovery jumper is provided to allow recovery in the unlikely event of an
unsuccessful BIOS upgrade. The jumper forces the ROM decode to access a 8 KB block of write protected recovery
code in the Flash device.
Note: CMOS memory should always be cleared after updating the BIOS. See the BIOS Updates appendix for more
details, or see the README files on the BIOS update disk.
SETUP UTILITY
The ROM-based 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. A motherboard jumper can be set to prevent user access to Setup for security purposes.
PCI SUPPORT
The BIOS supports Version 2.10 of the PCI BIOS specification. Support is also provided for Version 1.0 of the PCI
bridge specification. PCI-to-PCMCIA bridging can also be supported via third party expansion cards.
ISA PLUG & PLAY CAPABILITY
The BIOS incorporates ISA Plug and Play capabilities as defined by the Plug and Play Release 1.0A specification
(Plug and Play BIOS Ver. 1.0A, ESCD Ver. 1.02). This allows auto-configuration of Plug and Play ISA cards, and
resource management for non-plug and play (or legacy) ISA cards, when used in conjunction with Plug and Play
aware operating systems (such as Windows 95), or by using the ISA Configuration Utility (ICU) for non plug and
play aware operating systems (such as DOS/Windows 3.1x). System configuration information is stored in nonvolatile memory in ESCD format. The ESCD data may be cleared by setting the CMOS clear jumper to ON.
Copies of the IAL Plug and Play specification may be obtained via the Intel BBS (503) 264-7999, or via CompuServe
by typing Go PlugPlay.
AUTO-CONFIGURATION CAPABILITIES
The auto-configuration utility operates in conjunction with the system Setup utility to allow the insertion and removal
of PCI and ISA Plug and Play cards to the system without user intervention (Plug & Play). When the system is turned
on after adding a PCI or ISA Plug and Play card, the BIOS automatically configures interrupts, DMA channels, I/O
space, and memory space. The user does not have to configure jumpers or worry about potential resource conflicts.
Because PCI and ISA Plug and Play cards use the same interrupt resources as ISA cards, the user can specify the
interrupts used by ISA add-in cards in the Setup utility. Other parameters for legacy cards can be specified using the
ICU. If using Windows 95, the auto-configuration utility only initializes the devices required to boot up, Windows 95
initializes all the other devices since it's a Plug and Play aware operating system.
System configuration information is stored in ESCD format. The ESCD data may be cleared by setting the CMOS
clear jumper to the ON position.
POWER MANAGEMENT CAPABILITY
Power management capability is not supported by the Performance/AU.
FLASH LOGO AREA
Performance/AU supports an 8 KB programmable Flash logo area. An OEM may use this area to display a custom
logo during the boot process. The Performance/AU BIOS accesses the logo area just after completing POST. After
completing the boot process, the logo code is swapped out and the memory space made available for Upper Memory
Blocks. The logo utility is available for down loading from the Intel BBS.
LANGUAGE SUPPORT
BIOS error messages and Setup screens have been translated into five languages: American English, German,
Italian, French, and Spanish. The FMUP utility can be used to install the various language files.
Performance/AU Technical Product Specification • Page 10
SECURITY FEATURES
Administrative Password
If enabled, the administrative password protects all sensitive Setup options from being changed by a user unless the
password is entered. If the password is forgotten, it can be cleared by turning off the system and setting the "password
clear" jumper to the clear position.
User Password
The User Password feature provides security during the boot process. The user password can be set using the Setup
utility, and must be entered prior to peripheral boot or keyboard/mouse operation. (If the unattended boot feature is set
to enabled, the system will complete the operating system boot up process, but keyboard and mouse operation will be
locked until the user password is entered. See the Security Menu section of Appendix H for more details.)
If the password is forgotten, it can be cleared by turning off the system and setting the "password clear" jumper to the
clear position.
Setup Enable Jumper
A motherboard configuration jumper controls access to the BIOS Setup utility. By setting the jumper to the disable
position, the user is prevented from accessing the Setup utility during the Power-On Self Test or at any other time. The
message prompting the user to press <F1> to enter setup is also disabled.
PWR ON
1
Power on#
Power Return
POWER LED
Sleep Req
Sleep Driver
+5V
No Pin
INFRARED
Key
GND
IRRX
IRTX
No Pin
Key
+5V
+5V
HDACTIVE-
No Pin
HD LED
SLEEP LED
Key
GND
No Pin
LED DVR
GND
RESET-
RESET
SPEAKER
Key
+5V
SPEAKERDAT-
On-board speaker
26
FRONT PANEL CONNECTIONS (J27)
Figure 3: Front Panel I/O Connector, J27 (1 x 26 header)
The Performance/AU motherboard provides connectors to support functions typically located on the chassis bezel:
• Infrared (IrDA) port
• System Speaker
• Sleep/Resume
• System Reset
• Power Supply Control
• Power LED
• Hard Drive activity LED
SPEAKER
An on-board Piezo speaker is supported. It may be disabled by removing a jumper from the front panel header and an
off-board speaker may be connected to the header instead. The external speaker provides error beep code information
during the Power-On Self Test if the system cannot use the video interface. (see BIOS Error Messages appendix)
RESET
This 2-pin header can be connected to a momentary SPST type jumper that is normally open. When the jumper is
closed, the system will hard reset and run POST.
POWER LED
This 3-pin header can be connected to an LED to provide a light when the system is powered on.
HD LED
This 4-pin header can be connected to an LED when an IDE hard drive is connected to the onboard IDE controller.
Performance/AU Technical Product Specification • Page 11
INFRA-RED (IRDA) CONNECTOR
Serial port 2 can be configured to support an IrDA module via a 5 pin header connector. Once configured for IrDA,
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 115kbps from a distance of 1 meter.
SLEEP CONNECTOR
This function is not supported.
REMOTE ON/OFF AND SOFT POWER SUPPORT
For power supplies that support the Remote ON/OFF feature, this 2 pin header should be connected to the system
power ON/OFF switch. The power ON/OFF button should be a momentary SPST switch that is normally open. The
power supply control signal (PS_ON) is supported via the primary power connector which is defined in appendix G.
Traditional power supplies with mechanical ON/OFF switches that do not support remote ON/OFF or “soft-off” will
bypass this circuit.
After turning the system ON by pushing the power ON/OFF button, the Performance/AU motherboard (with a power
supply that supports remote power on/off) can be turned OFF from one of two sources: the front panel power
ON/OFF switch or a thermal trip signal from the Pentium Pro processor. Power can be restored by pressing the power
ON/OFF switch which will cycle the power back on and run POST. Shutdown of the power supply by operating
systems such as Windows 95 is not supported.
MOTHERBOARD CONNECTIONS
There are connectors on-board for Floppy, IDE, and an auxiliary system fan. There are also sockets for SIMMs and a
battery holder.
BACK PANEL CONNECTIONS
The back panel provides external access to PS/2-style keyboard and mouse connectors as well as two serial ports and
one parallel port, which are integrated on the Performance/AU motherboard. Figure 4 shows the general locations.
Comm 1
Keyboard Mouse
Parallel
Comm 2
Figure 4: Back Panel Connectors
POWER CONSUMPTION
Table 2 lists the current used by system resources in a configuration which includes 16 MB of DRAM. Table 3 lists the
typical power consumed by the same configuration.
CURRENT
DC Voltage
Typical Current* (Amps)
Acceptable Tolerance*
+3.3V
0.9
+/-5%
+5V
6.75
+/-5%
-5V
0.01
+/-5%
+12V
1.48
+/-5%
-12V
0.08
+/-5%
Table 2. Performance/AU Current Requirements (*same configuration as below)
WATTS
System Configuration
Performance/AU motherboard, 16 MB, 150 MHz Pentium Pro proc., Teac
FD235HF Floppy drive, 270 MB Maxtor* HDD, 1 GB Seagate ST31200N
SCSI HDD, NCR 8100S SCSI card Diamond Viper Pro* PCI graphics card,
2x Sony* CD-ROM, Two ISA TV tuner cards, Modem/Sound card
Performance/AU Technical Product Specification • Page 12
Typical Power*
AC: 74 W
DC: 55.5 W
Sleep-mode Power*
tbd
Table 3. Power use by System Resources (*true power measured from the wall with 65% efficient power supply)
Performance/AU Technical Product Specification • Page 13
Appendix A − User-Installable Upgrades
SYSTEM MEMORY
Table A-1 shows possible memory combinations. The Performance/AU supports only 60 ns or faster Fast Page DRAMs.
Using faster-than-specified SIMMs will not improve memory performance since memory timings are fixed to support only
60 ns SIMMs. SIMMs may be installed in Bank 0 only, Bank 1 only, or both banks. All installed SIMMs must be the same
size and type. Memory error checking and correction (ECC) is supported through parity SIMMs (x36). Non-parity SIMMs
(x32) may be used, foregoing ECC. Also note that Performance/AU supports only symmetric SIMMs. Non-symmetric
SIMMs, which have DRAMs with an unequal number of row and column address lines, are not supported.
Bank 0 (J15, J16)
SIMM Type (Amount)
Bank 1 (J13, J14)
SIMM Type (Amount)
Total System Memory
1M X 36 (4 MB)
Empty
8 MB
1M X 36 (4 MB)
1M X 36 (4 MB)
16 MB 2-way interleave
2M X 36(8 MB)
Empty
16 MB
2M X 36 (8 MB)
2M X 36 (8 MB)
32 MB 2-way interleave
4M X 36 (16 MB)
Empty
32 MB
4M X 36 (16 MB)
4M X 36 (16 MB)
64 MB 2-way interleave
8M X 36 (32 MB)
Empty
64 MB
8M X 36 (32 MB)
8M X 36 (32 MB)
128 MB 2-way interleave
Table A-1. Possible SIMM memory combinations. SIMMs may be (x 36) or (x 32)
WARNING: Use only tin leaded SIMMs. Do not use gold leaded SIMMs, as doing so may result in unreliable operation.
REAL TIME CLOCK BATTERY REPLACEMENT
The battery can be replaced with a Sanyo* CR2032, or equivalent, coin cell lithium battery with a 220 mAh rating.
CPU UPGRADE
A Type 8 Zero Insertion Force socket provides users with a performance upgrade path to the Pentium Pro OverDrive
technology.
Performance/AU Technical Product Specification • Page 14
Appendix B − Jumper Settings
UP
A
B
C
D OW N
G H
I
Figure B-1. Location of configuration jumpers.
PENTIUM PRO PROCESSOR SPEED - JUMPERS J25: A-D
These jumpers allow the board to be configured for different speeds of the Pentium Pro processor. The jumpers also affect
the PCI and ISA clock speeds according to the following table:
Jumper A
UP
DOWN
UP
DOWN
Jumper B
UP
DOWN
UP
DOWN
Jumper C
UP
UP
DOWN
DOWN
Jumper D
DOWN
DOWN
UP
UP
CPU Freq
200
180
166
150
Clk Freq
66
60
66
60
Ratio
3
3
5/2
5/2
PCI Freq
33
30
33
30
ISA Freq.
8.31
7.51
8.31
7.51
Table B-1. CPU/System Speed settings
PASSWORD CLEAR – JUMPER J25: E
Allows system password to be cleared by moving jumper to the DOWN position and turning the system on. The system
should then be turned off and the jumper returned to the default position of UP to restore normal operation. This procedure
should only be done if the user password has been forgotten.
CLEAR CMOS – JUMPER J25: F
Allows CMOS settings to be reset to default values by moving jumper to the to DOWN position and turning the system on.
This also will clear all Plug and Play configuration information in the ESCD area. The system should then be turned off and
the jumper returned to the default position of UP to restore normal operation.
CMOS SETUP ACCESS – JUMPER J25: G
Allows access to CMOS Setup Utility to be disabled by moving jumper to the to DOWN position. Default setting is for
access to Setup to be enabled with the jumper in the UP position.
FLASH BOOT BLOCK – JUMPER J25: H
Allows a recovery sequence if the system BIOS has been corrupted by moving jumper to the to DOWN position and
inserting a recovery disk (see Appendix L). Default setting for the jumper is UP position.
RESERVED – JUMPER J25: I
This jumper is reserved and should remain in the UP position.
CPU VOLTAGE ID OVERRIDE – JUMPER J29
Disables the Pentium Pro processor Voltage ID detection circuitry, if installed. Forces CPU voltage to 3.1V. Default
depends on the type of Pentium Pro processor installed when shipped from the factory. Check the Pentium Pro Product
Specification to determine which versions of the Pentium Pro processor support voltage identification.
ONBOARD SPEAKER ENABLE – J27 PINS 25-26
A jumper located on J27 pins 25-26 enables the onboard speaker. Removing this jumper disables the onboard speaker and
allows an external speaker to be connected through a standard header. Default is installed.
Performance/AU Technical Product Specification • Page 15
Appendix C − Memory Map
Address Range (Decimal)
Address Range (hex)
Size
1024K-131072K
100000-8000000
127M
Description
Extended Memory
960K-1023K
F0000-FFFFF
64K
AMI System BIOS
952K-959K
EC000-EFFFF
16K
BIOS RESERVED (Currently available as UMB)
948K-951K
EA000-EBFFF
8K
ECSD (Plug and Play configuration area)
896K-947K
E0000-E9FFF
32K
BIOS RESERVED (Currently available as UMB)
800-895K
C8000-DFFFF
96K
Available HI DOS memory (open to ISA and PCI bus)
640K-799K
A0000-C7FFF
160K
639K
9FC00-9FFFF
1K
512K-638K
80000-9FBFF
127K
0K-511K
Off-board video memory and BIOS
Extended BIOS Data (moveable by QEMM, 386MAX)
Extended conventional
00000-7FFFF
512K
Conventional
Table C-1. Performance/AU Memory Map
The table above details the Performance/AU memory map at the end of the boot process. During the boot process, code is
dynamically swapped in and out of memory in the E0000-FFFFF range to support POST, Autoconfigure, and Setup.
All accesses to 00000-7FFFF are always directed to on board memory (no PCI or ISA bus cycles are generated).
Accesses to 80000-9FFFF are directed to on board memory (no PCI or ISA bus cycles are generated) unless the Base Memory
Size parameter in Setup is set to 512 KB (see Appendix H, Advanced Settings). In that case, accesses to this memory range
will generate bus cycles.
Accesses to A0000-BFFFF are directed to on board memory and will not generate bus cycles.
The memory area from C0000-C7FFFF is assumed to be used by a VGA compatible graphics card BIOS. This area is
shadowed.
The memory area from C8000-DFFFF available for use as either Upper Memory Blocks (UMB) or by expansion cards. This
are is not shadowed.
Accesses to E0000-E9FFF are normally directed to on board memory. This area is currently not used by the BIOS and is
available for use as UMB by memory managers. (An include parameter may be required for the memory manager to make use
of this area). The autoconfigure utility may also use the area from E0000-E7FFF for PCI or Plug and Play expansion card
memory. Parts of this area may be used by future versions of the BIOS to add increased functionality.
The ECSD area from EA000-EBFFF is not available for use as an Upper Memory Block (UMB) by memory managers. (An
exclude parameter may be required to insure the memory manager does not use this area.) The ESCD area is used to store PCI
and Plug and Play configuration information.
Accesses to EC000-EFFFF are directed to on board memory (no PCI or ISA bus cycles are generated). This area is currently
not used by the BIOS and is available for use as UMB by memory managers, but is not available for use as expansion card
memory. (An include parameter may be required for the memory manager to make use of this area). Parts of this area may be
used by future versions of the BIOS to add increased functionality.
Accesses to F0000-FFFFF are directed to on board memory (no PCI or ISA bus cycles are generated). This area is used to
shadow the system BIOS and is write protected. This area can not be used for UMBs by memory managers or for expansion
card memory.
Performance/AU Technical Product Specification • Page 16
Appendix D − I/O Map
The following table lists the I/O addresses used by motherboard devices. Some devices (serial ports, parallel ports etc.) may be
configured for various addresses or disabled. These I/O locations are listed in the Variable Motherboard Resources column.
Address (hex)
Size
Fixed Motherboard Resources
0000 - 000F
16 bytes
PIIX - DMA 1
0020 - 0021
2 bytes
PIIX - Interrupt Controller 1
002E - 002F
2 bytes
Ultra I/O configuration registers
0040 - 0043
4 bytes
PIIX - Timer 1
0060
1 byte
Keyboard Controller Data Byte
0061
1 byte
PIIX - NMI, speaker control
0064
1 byte
Kbd Controller, CMD/STAT
Variable Motherboard Resources
0070, bit 7
1 bit
PIIX - Enable NMI
0070, bits 6:0
7 bits
87C306 - Real Time Clock,
0071
1 byte
87C306 - Real Time Clock,
0078
1 byte
Reserved - Brd. Config.
0079
1 byte
Reserved - Brd. Config.
0080 - 008F
16 bytes
PIIX - DMA Page Register
00A0 - 00A1
2 bytes
PIIX - Interrupt Controller 2
00B2 - 00B3
2 bytes
PIIX - APM Control/Status Port
00C0 - 00DF
32 bytes
PIIX - DMA 2
00F0
1 byte
Reset Numeric Error
0170 - 0177
8 bytes
01F0 - 01F7
8 bytes
Primary IDE Channel
0278 - 027B
4 bytes
Parallel Port 2
027C - 027F
4 bytes
Parallel Port 2 (EPP enabled)
02E8 - 02EF
8 bytes
Serial Port 4
02F8 - 02FF
8 bytes
Serial Port 2
0376
1 byte
Sec IDE Chan Cmd Port
0377
1 byte
Sec IDE Chan Stat Port
0378 - 037F
4 bytes
Parallel Port 1
Secondary IDE Channel
0378 - 037F
4 bytes
Parallel Port 1 (EPP enabled)
03BC - 03BF
4 bytes
Parallel Port 3
03E8 - 03EF
8 bytes
Serial Port 3
03F0 - 03F5
6 bytes
Floppy Channel 1
03F6
1 bytes
Pri IDE Chan Cmnd 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
04D0 - 04D1
2 bytes
0678 - -067A
3 bytes
0778 - -077A
3 bytes
0CF8 - 0CFC*
4 bytes
Serial Port 1
Edge/Level INTR Control Reg.
Parallel Port 2 (ECP enabled)
Parallel Port 1 (ECP enabled)
PCI Config Address Reg.
0CF9
1 byte
Turbo & Reset control Reg.
0CFC - 0CFF
4 bytes
PCI Config Data Reg
FFA0 - FFA7
8 bytes
FFA8 - FFAF
Primary Bus Master IDE regs
8 bytes
Secondary Bus Master IDE regs
Table D-1. Performance/AU I/O Address Map (*only accessible by DWORD accesses)
Performance/AU Technical Product Specification • Page 17
I/O Port 78 is reserved for BIOS use. Port 79 is a read only port, the bit definitions are shown below in Table D-2.
Bit #
0
1
2
3
4
5
6
7
Description
Bit = 1
Bit = 0
Processor clock: J25-C
Soft Off capable power supply present
No
On-bd Audio present
n/a
Processor clock: J25-B
Table B-2
Processor clock: J25-A
Table B-2
Setup Disable (Jumper 8)
Enable access
Clear CMOS (Jumper 5)
Keep values
Password Clear (Jumper 6)
Keep password
Table D-2. Performance/AU Port 79 Definition
Yes
No
Table B-2
Table B-2
Disable access
Clear values
Clear password
Note: These bit definitions are specific to the Performance/AU and may be defined differently on other Intel products.
Appendix E − PCI Configuration Space Map
The 82450 chip set uses Configuration Mechanism 1 to access PCI configuration space. The PCI Configuration Address
register is a 32-bit I/O register located at CF8h, the PCI Configuration Data register is a 32-bit I/O register located at CFCh.
The PCI Configuration Address register is only accessible by a DWORD access, the PCI Configuration Data register is
accessible by DWORD, WORD or BYTE accesses.
ACESS TO I/O CONFIGURATION SPACE USING MECHANISM #1
1. Using a DWORD write command, output the desired I/O configuration address to I/O port CF8H
2. Using a DWORD read or write command, read or write data from the I/O port CFCH
NOTE: Any address output to CF8H is always on a 4 byte (DWORD) boundary. You can read or write any BYTE, WORD
or DWORD in the four byte range by using the correct offset as follows:
DWORD @ CFCh
WORD @ CFCh or CFEh
BYTE @ CFCh, CFDh, CFEh or CFFh
CONFIGURATION ADDRESS REGISTER BIT DEFINITION
31
1
30
24
RESERVED
23
16
BUS NUMBER
15
11
DEVICE NUMBER
10
8
FUNCTION NUMBER
7
2
REGISTER NUMBER
1
0
0
0
CONFIG SPACE ENABLE FLAG (Bit 31): Always 1 to indicate I/O access is to configuration space.
RESERVED (Bits 30-24): Always 00h
BUS NUMBER (Bits 23-16): Always 00h unless a bridge card is installed in a PCI slot
DEVICE NUMBER (Bits 15-11): Used to indicate a specific PCI device. Each PCI device on the motherboard will respond
only to a specific device number Each PCI slot also has a specific device number, that device number is determined by
which PCI Address/Data line is connected to the slot’s ID SEL pin. Table E-1 details the specific mapping information.
FUNCTION NUMBER (Bits 10-8): Used to indicate a specific function in multifunction PCI devices. The PIIX is the only
multifunction device located on the motherboard. Use 00h for the basic PIIX device and 01h for the PCI IDE
CONTROLLER. For a multifunction PCI add-in card, refer to the card’s documentation to determine the allowable function
numbers.
REGISTER NUMBER (Bits 7-2): Defines one of 64 DWORD locations for a specific PCI device.
Note that Bits 1 and 0 must always be 0h for DWORD access.
Performance/AU Technical Product Specification • Page 18
The table below lists the PCI bus and device numbers used by the motherboard. It also lists the data range that must be written
to the I/O Configuration Address register to access the device.
Device
Bus/Device/Function
ID Sel
I/O Config Address Register
PB
00/19/0
N/A
8000 C800 - 8000 C8FC
MC
00/14/0
N/A
8000 A000 - 8000 A0FC
PIIX
00/02/0
AD18
8000 1000 - 8000 10FC
PIIX-IDE BUS MASTER
00/02/1
AD18
8000 1100 - 8000 11FC
PCI SLOT 1 (closest to ISA slots)
00/06/0
AD22
8000 3000 - 8000 30FC
PCI SLOT 2
00/09/0
AD25
8000 4800 - 8000 48FC
PCI SLOT 3
00/0C/0
AD28
8000 6000 - 8000 60FC
PCI SLOT 4 (farthest from ISA slots)
00/0E/0
AD30
8000 7000 - 8000 70FC
Table E-1. Performance/AU PCI Configuration. Space Map
Appendix F − Interrupts & DMA Channels
The following tables list the Interrupt and DMA Channel configuration options for on-board devices. The serial ports, parallel ports, and IDE controller can
be configured via Setup, the ICU, or any other Plug and Play resource manager (such as the Windows 95 Device Manager). An “X” in a cell indicates a
configuration option for that device.
IRQ
NMI
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Reserved Interrupts
I/O Channel Check
Interval Timer
Keyboard buffer full
Cascade interrupt
from slave PIC
Serial Port 1
Serial Port 2
X
X
X
X
Parallel Port
IDE
X
Floppy Controller
X
Real Time Clock
PS/2 Mouse (if
present)
Math co-processor
X
X
Table F-1.Performance/AU Interrupts
DMA
0
1
2
3
4
5
6
7
Data Width
8 bits
8 bits
8 bits
8 bits
Reserved
Parallel Port
X
Floppy
X
Cascade
channel
16 bits
16 bits
16 bits
Table F-2. Performance/AU DMA Map
Performance/AU Technical Product Specification • Page 19
Appendix G − Connectors
PWR ON
1
Power on#
Power Return
POWER LED
Sleep Req
Sleep Driver
+5V
No Pin
INFRARED
Key
GND
IRRX
IRTX
+5V
No Pin
HD LED
Key
+5V
HDACTIVE-
No Pin
GND
No Pin
Key
SLEEP LED
SPEAKER CONNECTOR
LED DVR
RESET
GND
RESET-
+5V
Key
26
SPEAKERDAT-
On-board speaker
SPEAKER
FRONT PANEL CONNECTORS − (J27)
INFRARED
Pin
Signal Name
Pin
26
SPKR_DAT
10
Signal Name
IR_TX
25
Piezo SPKR DAT
9
Ground
24
Key
8
IR_RX
23
+5V
7
Key
6
+5V
RESET CONNECTOR
SLEEP/RESUME
Pin
Signal Name
22
RESET
Pin
Signal Name
21
Ground
4
Sleep Pull Up
3
Sleep Req
POWER/SLEEP LED
REMOTE ON/OFF
Pin
Signal Name
19
LED_PWR
Pin
Signal Name
18
Key
2
Power Return
17
Ground
1
Power on
HARD DRIVE LED (DISK)
Pin
EXT. HD CONTROLLER LED (J21)
Signal Name
Pin
Signal Name
15
+5V
1
NC
14
HD ACTIVE
2
Drive LED input
13
Key
3
Drive LED input
12
+5V
4
NC
FAN CONNECTORS
CPU FAN POWER (J17)
CARD SLOT FAN POWER (J24)
Pin
Signal Name
Fast Pin
Slow Pin
Signal Name
1
Ground
1
4
Ground
2
+12 V
2
5
+12 V
3
NC
3
6
Ground
Performance/AU Technical Product Specification • Page 20
POWER SUPPLY CONNECTOR
J19
11
1
20
10
PRIMARY POWER (J19)
Function
Name
Pin
Pin
Name
Function
+ 3.3 V for PCI slots
3.3 V
11*
1
3.3 V
+ 3.3 V for PCI slots
- 12 volts
-12 V
12
2
3.3 V
+ 3.3 V for PCI slots
Ground
GND
13
3
GND
Ground
Power Supply remote ON/OFF control
PS-ON*
14
4
+5 V
+ 5 volts Vcc
Ground
GND
15
5
GND
Ground
Ground
GND
16
6
+5 V
+ 5 volts Vcc
Ground
GND
17
7
GND
Ground
-5 volts
-5 V
18
8
PWRG
Power Good
+ 5 volts Vcc
+5 V
19
9
+5 VSB
+ 5 volts Stand By for RTC
+ 5 volts Vcc
+5 V
20
10
+12 V
+ 12 volts
Note: Due to unused optional pins, pin 11 is labeled as pin 14 on the motherboard’s silkscreen.
BACK PANEL CONNECTORS
1
1
5
S er i al P or t 1
6
9
Signal Name
1
DCD
2
Serial In - (SIN)
3
Serial Out - (SOUT)
4
DTR-
5
GND
6
DSR-
7
RTS-
8
CTS-
9
RI
PS/2 PORTS (J3, J4)
Pin
14
25
PARALLEL PORT (J2)
SERIAL PORTS (J1, J5)
Pin
S er i al P or t 2
13
Signal Name
1
Data
2
No Connect
3
Ground
4
Vcc
5
Clock
6
No Connect
Signal Name
STROBEData Bit 0
Data Bit 1
Data Bit 2
Data Bit 3
Data Bit 4
Data Bit 5
Data Bit 6
Data Bit 7
ACKBUSY
PE (Paper End)
SLCT
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
Pin
14
15
16
17
18
19
20
21
22
23
24
25
Signal Name
AUTO FEEDERRORINITSLCT INGround
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Performance/AU Technical Product Specification • Page 21
INTERNAL I/O HEADERS
B
2
1
20
2
40
1
39
34
5
33
A
IDE CONNECTORS (J22, J23)
Signal Name
Pin
Pin
Signal Name
Reset IDE#
1
2
Ground
Host Data 7
3
4
Host Data 8
Host Data 6
5
6
Host Data 9
Host Data 5
7
8
Host Data 10
Host Data 4
9
10
Host Data 11
Host Data 3
11
12
Host Data 12
Host Data 2
13
14
Host Data 13
Host Data 1
15
16
Host Data 14
Host Data 0
17
18
Host Data 15
Ground
19
20
Key
DDRQ0 (DDRQ1)
21
22
Ground
I/O Write #
23
24
Ground
I/O Read #
25
26
Ground
IOCHRDY
27
28
SPSYNC:CSEL
DDACK0 (DDACK1)
29
30
Ground
IRQ14 (IRQ15)
31
32
IOCS16#
Addr 1
33
34
NC
Addr 0
35
36
Addr 2
Chip Select 1P (1S)
37
38
Chip Select 3P
Activity #
39
40
Ground
Note: Signals in parenthesis are for secondary IDE connector.
FLOPPY CONNECTOR (J26)
Signal Name
Ground
Ground
Key
Ground
Ground
Ground
Ground
Ground
MSEN1
Ground
Ground
Ground
Ground
MSEN0
Ground
Ground
Ground
Pin
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
Signal Name
DENSEL
Reserved
FDEDIN
Index #
Motor Enable A #
Drive Select B #
Drive Select A #
Motor Enable B #
DIR #
STEP #
Write Data #
Write Gate #
Track 00 #
Write Protect #
Read Data #
Side 1 Select #
Diskette Change #
PROBE MODE PORT (J18)
Signal Name
PROBRSET#
PMP_RST#
P6_TCKR
P6_TMS
VTT_R
NC
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Performance/AU Technical Product Specification • Page 22
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
Pin
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Signal Name
Ground
Ground
Ground
P6_TDI
P6_TDO
P6_TRST#
NC
P6_PREQ#
PROBPRDY#
NC
NC
NC
NC
NC
NC
EXPANSION CARD CONNECTORS
ISA CONNECTORS (J6, J7, J8)
Signal Name
Pin
Pin
Signal Name
Signal Name
Pin
Pin
Signal Name
GND
B1
A1
IOCHK-
DACK2-
B26
A26
SA5
RSTDRV
B2
A2
SD7
TC
B27
A27
SA4
Vcc
B3
A3
SD6
BALE
B28
A28
SA3
IRQ9
B4
A4
SD5
Vcc
B29
A29
SA2
-5V
B5
A5
SD4
OSC
B30
A30
SA1
DRQ2
B6
A6
SD3
GND
B31
A31
SA0
KEY
KEY
-12V
B7
A7
SD2
0WS-
B8
A8
SD1
MEMCS16-
D1
C1
+12V
B9
A9
SD0
IOCS16-
D2
C2
LA23
GND
B10
A10
IOCHRDY
IRQ10
D3
C3
LA22
SMEMW-
B11
A11
AEN
IRQ11
D4
C4
LA21
SMEMR-
B12
A12
SA19
IRQ12
D5
C5
LA20
IOW-
B13
A13
SA18
IRQ15
D6
C6
LA19
IOR-
B14
A14
SA17
IRQ14
D7
C7
LA18
DACK3-
B15
A15
SA16
DACK0-
D8
C8
LA17
DRQ3
B16
A16
SA15
DRQ0
D9
C9
MEMR-
SBHE-
DACK1-
B17
A17
SA14
DACK5-
D10
C10
MEMW-
DRQ1
B18
A18
SA13
DRQ5
D11
C11
SD8
REFRESH-
B19
A19
SA12
DACK6-
D12
C12
SD9
SYSCLK
B20
A20
SA11
DRQ6
D13
C13
SD10
IRQ7
B21
A21
SA10
DACK7-
D14
C14
SD11
IRQ6
B22
A22
SA9
DRQ7
D15
C15
SD12
IRQ5
B23
A23
SA8
Vcc
D16
C16
SD13
IRQ4
B24
A24
SA7
Master-
D17
C17
SD14
IRQ3
B25
A25
SA6
GND
D18
C18
SD15
Performance/AU Technical Product Specification • Page 23
PCI CONNECTORS (J9, J10, J11, J12)
Signal Name
Pin
Pin
Signal Name
Signal Name
Pin
Pin
Signal Name
GND
A1
B1
-12V
AD16
A32
B32
AD17
+12V
A2
B2
No Connect
3.3V
A33
B33
CBE2 #
No Connect
A3
B3
GND
FRAME #
A34
B34
GND
No Connect
A4
B4
No Connect
GND
A35
B35
IRDY #
Vcc
A5
B5
Vcc
TRDY #
A32
B32
3.3V
PCIINT3 #
A6
B6
Vcc
GND
A37
B37
DEVSEL #
PCIINT1 #
A7
B7
PCIINT2 #
STOP #
A38
B38
GND
Vcc
A8
B8
PCIINT4 #
3.3V
A39
B39
PLOCK #
PERR #
Reserved
A9
B9
No Connect
SDONE
A40
B40
Vcc
A10
B10
Reserved
SBO #
A41
B41
3.3V
Reserved
A11
B11
No Connect
GND
A42
B42
SERR #
GND
A12
B12
GND
PAR
A43
B43
3.3V
GND
A13
B13
GND
AD15
A44
B44
CBE1 #
AD14
Reserved
A14
B14
Reserved
3.3V
A45
B45
SPCIRST #
A15
B15
GND
AD13
A46
B46
GND
Vcc
A16
B16
PCLKE
AD11
A47
B47
AD12
AGNT #
A17
B17
GND
GND
A48
B48
AD10
GND
A18
B18
REQA #
AD9
A49
B49
GND
Reserved
A19
B19
Vcc
KEY
A50
B50
KEY
AD30
A20
B20
AD31
KEY
A51
B51
KEY
AD8
3.3V
A21
B21
AD29
CBEO #
A52
B52
AD28
A22
B22
GND
3.3V
A53
B53
AD7
AD26
A23
B23
AD27
AD6
A54
B54
3.3V
AD5
GND
A24
B24
AD25
AD4
A55
B55
AD24
A25
B25
3.3V
GND
A56
B56
AD3
AD22
A26
B26
CBE3 #
AD2
A57
B57
GND
AD1
3.3V
A27
B27
AD23
AD0
A58
B58
AD22
A28
B28
GND
Vcc
A59
B59
Vcc
AD20
A29
B29
AD21
SREQ64 #
A60
B60
SACK64 #
GND
A30
B30
AD19
Vcc
A61
B61
Vcc
AD18
A31
B31
3.3V
Vcc
A62
B62
Vcc
Performance/AU Technical Product Specification • Page 24
Appendix H − BIOS Setup
This section details the BIOS CMOS Setup Utility. The parameters described below are based on BIOS version 1.00.03.CG0;
other BIOS versions may differ from the description below as new features are added.
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 <↓> keys
to select items in a screen. Use <Enter> to select an item for modification. For certain items, pressing <Enter> will bring up
a subscreen. After you have selected an item, use the arrow keys to modify the setting.
Setup Menu Screen
Main
Security
Exit
Description
For setting up and modifying some of the basic options of a PC, such as time, date, diskette drives,
hard drives.
For modifying the more advanced features of a PC, such as peripheral configuration and advanced
chip set configuration.
For specifying passwords that can be used to limit access to the system.
For saving or discarding changes.
Setup Subscreen
Floppy Options
Primary IDE Master
Primary IDE Slave
Secondary IDE Master
Secondary IDE Slave
Boot Options
Peripheral Configuration
Advanced Chip set Configuration
Plug and Play Configuration
Description
For configuring your floppy disk drives.
For configuring your Primary IDE Master drive.
For configuring your Primary IDE Slave drive.
For configuring your Secondary IDE Master drive.
For configuring your Secondary IDE Slave drive.
For modifying options that affect the system boot up, such as the boot sequence.
For modifying options that affect the serial ports, the parallel port, and the disk drive interfaces.
For modifying options that affect memory and system busses.
For modifying options that affect the system’s plug and play capabilities.
Advanced
OVERVIEW OF THE SETUP KEYS
Setup Key
<F1>
<Esc>
<Enter>
<↑>
<↓>
<←> <→>
<F5>
<F6>
<F10>
Description
Pressing the <F1> key brings up a help screen for the currently selected item.
Pressing the <Esc> key takes you back to the previous screen. Pressing it in the Main, Advanced,
Security, or Exit screen allows you to Exit Discarding Changes (see later in this chapter).
Pressing the <Enter> key selects the current item or option.
Pressing the up <↑> key changes the selection to the previous item or option.
Pressing the down <↓> key changes the selection the to the next item or option.
Pressing the left <←> or right <→> keys in the Main, Advanced, Security, or Exit menu screens
changes the menu screen. Pressing either key in a subscreen does nothing.
Pressing the <F5> key allows you to Load Setup Defaults (see later in this chapter).
Pressing the <F6> key allows you to Discard Changes (see later in this chapter).
Pressing the <F10> key allows you to Exit Saving Changes (see later in this chapter).
MAIN SCREEN
This section describes the Setup options found on the main menu screen. If you select certain options from the main screen
(e.g., Floppy options), the Setup program will switch to a subscreen for the selected option. Subscreens are described in the
sections following the description of the main screen options.
System Date
When selected, this brings up a dialog box that allows you to specify the current date.
System Time
When selected, this brings up a dialog box that allows you to specify the current time.
Floppy Options
When selected, this brings up the Floppy Options subscreen.
Performance/AU Technical Product Specification • Page 25
Primary IDE Master
This reports if a primary master IDE hard disk is connected to the system. When selected, this brings up the Hard Disk
Configuration subscreen.
Primary IDE Slave
This reports if a primary slave IDE hard disk is connected to the system. When selected, this brings up the Hard Disk
Configuration subscreen.
Secondary IDE Master
This reports if a secondary master IDE hard disk is connected to the system. When selected, this brings up the Hard
Disk Configuration subscreen.
Secondary IDE Slave
This reports if a secondary slave IDE hard disk is connected to the system. When selected, this brings up the Hard Disk
Configuration subscreen.
Language
This reports the current language of the text strings used in the Setup program and the BIOS. There are no options. The
language of the text strings can be changed by using the Flash Memory Update utility.
Boot Options
When selected, this brings up the Boot Options screen.
Video Mode
This reports the video mode. There are no options.
Mouse
This reports if a PS/2 style mouse is installed or not. There are no options.
Base Memory
This reports the amount of base memory. There are no options.
Extended Memory
This reports the amount of extended memory. There are no options.
FLOPPY OPTIONS SUBSCREEN
Floppy A: Type
When selected, this brings up a dialog box that allows you to specify 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 MB, 3.5-inch.
Floppy B: Type
When selected, this brings up a dialog box that allows you to specify 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.
PRIMARY IDE MASTER SUBSCREEN
IDE Device Configuration
When selected, this brings up a dialog box that allows you to manually configure your 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.
Performance/AU Technical Product Specification • Page 26
Number of Cylinders
If Hard Disk Type 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.
Number of Heads
If Hard Disk Type 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.
Number of Sectors
If Hard Disk Type 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.
Maximum Capacity
This reports the maximum capacity of your hard disk. It is calculated from the number of cylinders, heads, and sectors.
There are no options.
IDE Translation Mode
When selected, this brings up a dialog box that allows you to specify the IDE translation mode. The options are
Standard CHS (standard cylinder head sector — less than 528MB total drive size), Logical Block Addressing (LBA),
Extended CHS (extended cylinder head sector), and Auto Detected (BIOS detects IDE drive support for LBA). The
default is Auto-detected.
Some operating systems do not support LBA and/or ECHS translation modes. In these cases, this parameter should be
set to CHS. Check the documentation for your specific operating system to see if it supports these extended modes.
(DOS/Windows 3.X and Windows 95 both support LBA and ECHS modes).
Also, if an IDE drive has previously been FDISKed and formatted on another system, you must ensure both systems are
set for the same translation mode. Data corruption or erratic operation may result if different modes are used.
Multiple Sector Setting
When selected, this brings up a dialog box that allows you to set the IDE programmed I/O cycles so that multiple
sectors are transferred in a single block. 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 will provide
the optimum performance for your drive.
Fast Programmed I/O Modes
When selected, this brings up a dialog box that allows you to set how fast transfers on the PCI IDE interface occur. The
options are Disabled or Auto Detected. The default is Auto Detected. If set to Disabled, transfers occur at an unoptimized speed. If set to Auto Detected, transfers occur at the maximum speed of the drive or controller (Mode 4).
PRIMARY IDE SLAVE SUBSCREEN
Please refer to “PRIMARY IDE MASTER SUBSCREEN” section described above.
SECONDARY IDE MASTER SUBSCREEN
Please refer to “PRIMARY IDE MASTER SUBSCREEN” section described above.
SECONDARY IDE SLAVE SUBSCREEN
Please refer to “PRIMARY IDE MASTER SUBSCREEN” section described above.
BOOT OPTIONS SUBSCREEN
First Boot Device
When selected, this brings up a dialog box that allows you to set which device the system checks first to find an
operating system to boot from. The options available are: Disabled, Floppy, Hard Disk, CD-ROM, and Network. The
default is Floppy.
Performance/AU Technical Product Specification • Page 27
Second Boot Device
When selected, this brings up a dialog box that allows you to set which device the system checks second to find an
operating system to boot from. The options available are: Disabled, Floppy, Hard Disk, CD-ROM, and Network. The
default is Hard Disk.
Third Boot Device
When selected, this brings up a dialog box that allows you to set which device the system checks third to find an
operating system to boot from. The options available are: Disabled, Floppy, Hard Disk, CD-ROM, and Network. The
default is Disabled.
Fourth Boot Device
When selected, this brings up a dialog box that allows you to set which device the system checks fourth to find an
operating system to boot from. The options available are: Disabled, Floppy, Hard Disk, CD-ROM, and Network. The
default is Disabled.
System Cache
When selected, this brings up a dialog box that allows you to enable or disable both the primary and secondary cache
memory. The options are Enabled or Disabled. The default is Enabled.
Boot Speed
When selected, this brings up a dialog box that allows you to set 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 (approximately equivalent to 25 MHz PC-AT). Selecting the Deturbo option is equivalent to disabling
the system cache. The BIOS does not use the deturbo register in the 82450 chip set.
Num Lock
When selected, this brings up a dialog box that allows you to set the beginning state of the Num Lock feature on your
keyboard. The options are On and Off. The default is Off.
Setup Prompt
When selected, this brings up a dialog box that allows you to turn on 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.
Typematic Rate Programming
When selected, this brings up a dialog box that allows you to set the typematic rates. The options are Default and
Override. The default is Default. Choosing Override will enable display of the Typematic Rate Delay and Typematic
Rate parameters described below.
Typematic Rate Delay
When selected, this brings up a dialog box that allows you to set 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 will not be visible.
Typematic Rate
When selected, this brings up a dialog box that allows you to set 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
will not be visible.
Performance/AU Technical Product Specification • Page 28
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 will switch to a subscreen for the selected option.
Subscreens are described in the sections following the description of the Advanced screen options.
Processor Type
This reports the CPU type. There are no options.
Processor Speed
This reports the clock speed of the CPU. There are no options.
Cache Size
This reports the size of the secondary cache. There are no options. If no secondary cache is installed, this field will not
be displayed.
Peripheral Configuration
When selected, this brings up the Peripheral Configuration subscreen.
Advanced Chip set Configuration
When selected, this brings up the Advanced Chip set Configuration subscreen.
Plug and Play Configuration
When selected, this brings up the Plug and Play Configuration subscreen.
PERIPHERAL CONFIGURATION SUBSCREEN
Configuration Mode
When selected, this brings up a dialog box that allows you to set the peripheral configuration yourself, or have the
system do it. The options are Auto and Manual. The default is Auto.
When Auto is selected, the system peripherals are automatically configured during power up. The options below for the
PCI/IDE Interfaces, Floppy Interface, Serial Port 1 and Serial Port 2 Addresses, Serial Port2 IR mode, and the Parallel
Port Address can not be modified. The settings displayed for those options reflect the current state of the hardware.
If Manual is selected, the options for the PCI IDE Interfaces, Floppy Interface, Serial Port 1 and Serial Port 2
Addresses, Serial Port2 IR mode, and Parallel Port Address can be explicitly configured.
PCI IDE Interface
When selected, this brings up a dialog box that allows you to enable the PCI IDE hard disk interface. The options are
Enabled and Disabled. The default is Enabled. (If Configuration Mode is set to Auto, this option cannot be modified.)
Floppy Interface
When selected, this brings up a dialog box that allows you to enable the diskette drive interface. The options are
Enabled and Disabled. The default is Enabled. (If Configuration Mode is set to Auto, this option cannot be modified.)
Serial Port 1 Address
When selected, this brings up a dialog box that allows you to select the address of the serial port. The options are
Disabled; COM1, 3F8h, IRQ4; COM2, 2F8h, IRQ3; COM3, 3E8h, IRQ4; and COM4, 2E8h, IRQ3. (All options may
not be listed if the BIOS detects another serial port.) The default is COM1, 3F8h, IRQ4. If the Configuration Mode is
set to Auto, the Setup program assigns the first free COM port (normally COM1, 3F8h) 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, this option
cannot be modified.)
Performance/AU Technical Product Specification • Page 29
Serial Port 2 Address
When selected, this brings up a dialog box that allows you to select the address of the serial port. The options are
Disabled; COM1, 3F8h, IRQ4; COM2, 2F8h, IRQ3; COM3, 3E8h, IRQ4; and COM4, 2E8h, IRQ3. (All options may
not be listed if the BIOS detects another serial port.) The default is COM2, 2F8h, IRQ3. If the Configuration Mode is
set to Auto, 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, this option
cannot be modified.)
Serial Port 2 IR Mode
When selected, this dedicates Serial Port 2 for infrared applications. Serial Port 2 also can be enabled with software
from application programs. The default is Disabled. This option is only available when the Configuration Mode is set to
Manual.
Parallel Port Address
When selected, this brings up a dialog box that allows you to select the address of the parallel port. The options depend
on the setting of the Parallel Port Mode parameter (see below). If the Parallel Port Mode is set to Compatible or BiDirectional, the options are: Disabled; LPT3, 3BCh, IRQ 7; LPT1, 378h, IRQ 7; LPT2, 278h, IRQ 7; LPT1, 378h, IRQ
5; LPT3, 3BCh, IRQ5; and LPT2, 278h, IRQ5. If the Parallel Port Mode is set to ECP, the options are: Disabled; LPT1,
378h, IRQ 7, DMA 3; LPT2, 278h, IRQ 7, DMA 3; LPT1, 378h, IRQ 5, DMA 3; and LPT2, 278h, IRQ5, DMA 3. If
the Parallel Port Mode is set to EPP, the options are: Disabled; LPT1, 378h, IRQ 7; LPT2, 278h, IRQ 7; LPT1, 378h,
IRQ 5; and LPT2, 278h, IRQ5. The default is LPT1, 378h, IRQ 7. If the Configuration Mode is set to Auto, the setup
program assigns LPT1, 378h as the parallel port address, regardless of what is selected under the Parallel Port Address
option. (If Configuration Mode is set to Auto, this option cannot be modified.)
Parallel Port Mode
When selected, this brings up a dialog box that allows you to select the mode for the parallel port. The options are
Compatible, Bi-directional, ECP or EPP. The default is Compatible, which means the parallel port will operate in ATcompatible output mode. Bi-directional means the parallel port will be set for 8-bit bi-directional. When set to ECP, the
port will be configured to support the Enhanced Capabilities Port standard. When set to EPP, the parallel port will be
configured for the Extended Parallel Port standard.
ADVANCED CHIP SET CONFIGURATION SUBSCREEN
Base Memory Size
When selected, brings up a dialog box that allows you to set the size of the base memory. The options are 512 KB and
640 KB. The default is 640 KB. Note: If ISA LFB Size is set to 1 MB, Base Memory cannot be set to 512 KB.
ISA LFB Size
When selected, this brings up a dialog box that allows you to access memory on the ISA bus instead of motherboard
DRAM in the address range from 15-16 MB. The options are Disabled, 1, 2 or 4 MB. The default is Disabled. If this is
set to 1, 2, or 4 MB, then the ISA LFB Base Address field will appear.
ISA LFB Base Address
This 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.
Video Palette Snoop
When selected, this brings up a dialog box that allows you to control the ability of a PCI graphics card to “snoop” write
cycles to an ISA graphics card’s color pallet registers. The options are Enabled and Disabled. The default is Disabled.
Note: Some video capture or TV tuner add-in boards may require this feature to be enabled. Depending on graphics
card hardware limitations, this item may not appear.
Latency Timer (PCI Clocks)
When selected, this brings up a dialog box that allows you to control the time an agent on the PCI bus can hold the bus
after another agent has requested the bus. The valid numbers are between 0 and 255. The default is 66.
Performance/AU Technical Product Specification • Page 30
ECC Support
Reports if ECC is enabled. ECC is automatically enabled if 36-bit (parity) SIMMs are installed. There are no options.
PLUG AND PLAY CONFIGURATION SUBSCREEN
Configuration Mode
When selected, this brings up a dialog box that allows you to set how the BIOS gets information about ISA cards that
do not have plug and play capabilities. The options are “Use Setup Utility” and “Use ICU” (ISA Configuration Utility).
The default is “Use Setup Utility”.
If “Use ICU” is selected, the assumption is some type of Plug and Play configuration utility, rather than the system
BIOS, will be used to initialize the system peripherals.
If “Use Setup Utility” is selected, the system peripherals are fully configured by the system
BIOS and not the operating system. "Boot With PnP OS" will not be visible in this case.
Boot With PnP OS
When selected, this brings up a dialog box that allows you to specify how the Plug and Play devices are configured. The
options are Disabled, Other, and Windows95. The default is Windows95.
If set to Disabled, the system peripherals are fully configured by the system BIOS and not the operating system, just like
in “Use Setup Utility”.
If the user selects Windows* 95, it is expected that the user is running Windows* 95. Resources are assigned in such a
way that Windows* 95 may easily reconfigure them to resolve the potential conflicts. Following is the order in which
the devices are allocated resources:
Motherboard fixed - Basic Static ISA Legacy devices such as Keyboard, Video, RTC, etc.
PnP Add in Cards - ISA PnP Devices like some audio solutions, and PnP adapters
Dynamic Motherboard Devices - Relocatable Devices such Comm, and LPT ports
PCI Devices - includes both PCI expansion cards and on-board PCI devices such as the IDE controller.
If the user selects Other, only a few devices are enabled by the system BIOS, and they are: an input device, an output
device, and an IPL. The input device will usually be the keyboard, the output device is usually the video, and IPL is the
first boot device found. The order at which each set of devices are initialized is as follows:
Motherboard fixed - Basic Static ISA Legacy devices such as Keyboard, Video, RTC, etc.
PnP Add in Cards - ISA PnP Devices like some audio solutions, and PnP adapters
PCI Devices - includes both PCI expansion cards and on-board PCI devices such as the IDE controller.
Dynamic Motherboard Devices - Relocatable Devices such Comm, and LPT ports
ISA Shared Memory Size
When selected, this brings up a dialog box that allows you to specify a range of memory addresses that will be directed
to the ISA bus rather than on-board 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, "ISA Shared Memory Base Address", below, will not be visible.
This field should be set to Enabled only when a non Plug and Play ISA card (legacy card) is used that requires nonROM memory space. LAN cards that have on-board memory buffers are one example of this, video capture cards that
have video buffer memory are another.
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
will scan this range for any ISA expansion card BIOSes that may be present and note the location and size. The BIOS
will then autoconfigure 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 will then assign 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 is
used to signify to the autoconfigure routine that this block of memory is reserved and should not be shadowed.
(Shadowing is a technique which copies a block of memory from an add in card’s ROM to the same address in system
DRAM memory to allow faster access to the code and achieve higher performance.)
Performance/AU Technical Product Specification • Page 31
ISA Shared Memory Base Address
When selected, this brings up a dialog box that allows you to set the base address for the ISA Shared Memory. The
options are C8000h, CC000h, D0000h, D4000h, and D8000h. The default is C8000h. This setting may affect the ISA
Shared Memory Size item. The value entered in the ISA Shared Memory Size item cannot extend into the E0000h
address. For example, if a size of 64K was selected, options D4000h, and D8000h will not be available.
IRQ 3, 4, 5, 7, 9, 10, 11, 12
When selected, this brings up a dialog box that allows you to set the status of specific IRQs. The options are Available
and Used By ISA Card. The default is Available. The auto-configuration code looks here to see if these interrupts are
available. If an interrupt is available, the auto-configuration code can assign the interrupt to be used by PCI or Plug and
Play devices. If your system contains an ISA agent that uses one of these interrupts, select Used By ISA Card for that
particular interrupt.
Some of these interrupts may not be displayed if they already have been assigned to other peripherals, such as IRQ 3
and IRQ 4, which are normally used by the serial ports, and IRQ 12 for the mouse port.
Note: If PCI add-in cards are used, all but one IRQ can be set to Used By ISA Card; one must remain available in
order for PCI cards which use interrupts to function correctly.
Note: IRQ 14 and IRQ 15 will not show up as user available. If the on-bd IDE controller is not used, these interrupts
are available for use by ISA cards, even though they do not show up in the list above. These interrupts can not be used
for PCI cards.
SECURITY SCREEN
The objectives of the BIOS security system are to:
1.
2.
3.
4.
Keep unwanted individuals from accessing the computer.
Limit the fields that can be accessed in the CMOS Setup Utility program.
Allow the computer to boot while unattended and still be secure.
Set up a hot key to invoke the security system immediately.
The security system is implemented using two passwords in tandem, a User Password and an Administrative Password.
The level of security available is dependent on whether one or both passwords are set and which password is used to enter
the system. It is assumed that if the Administrative Password is used, it is controlled by a central corporate information
services or security organization and that the Administrative Password and User Password will have been set prior to the
end user receiving the system.
To meet each of the objectives above, the following procedures are recommended:
1. End user sets/resets User Password and sets the Unattended Start parameter to Disabled. User will be prompted for a password, and
must enter the correct password before the boot process is allowed to complete or before the user is allowed to enter Setup.
2. The Administrative Password is set prior to end user receiving system; no action required by end user. No password is required to
complete the boot process, the user will be prompted for the correct password before being allowed to enter Setup.
3. End user sets User Password then Enables Unattended Start. If User Password had previously been set, user Enables Unattended
Start. System will complete the boot process and start the operating system. The user must enter the correct User Password (not the
Administrative Password) before input will be accepted from either the mouse or keyboard. The password does not need to be followed
by a carriage return. The user will not be prompted for a password, however the keyboard LEDs (Num Lock, Caps Lock, and Scroll Lock)
will blink indicating the system is in secure mode. The user is prompted for the password before being allowed to enter Setup.
4. End user sets User Password then Enables Security Hot Key. If User Password had previously been set, user Enables Security Hot
Key. The user can place the system in to secure mode at any time by typing the specified keystroke combination ( <CTL> <ALT> <user
specified> ). Once the system is in secure mode, the user will need to enter the correct User Password (not the Administrative
Password) before input will be accepted from either the mouse or the keyboard. The password does not need to be followed by a
carriage return. The user will not be prompted for a password, however the keyboard LEDs (Num Lock, Caps Lock, and Scroll Lock) will
blink indicating the system is in secure mode.
Password in Effect
User only
Administrative only
Both -- User password used
Both -- Admin password used
No password enabled
Password Needed Password Needed Able To Access All
Able To Set
Able To Set Security
at Boot?
to Access Setup?
Setup Fields?
Unattended Start?
Hot Key?
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
No
Performance/AU Technical Product Specification • Page 32
SECURITY SCREEN OPTIONS
User Password is
This reports if there is a User password set. There are no options.
Administrative Password is
This reports if there is an Administrative password set. There are no options.
Set User Password
When selected, this brings up a dialog box that allows you to set the User password.
Set Administrative Password
When selected, this brings up a dialog box that allows you to set the Administrative password.
Unattended Start
When selected, this brings up a dialog box that allows you to control 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 will boot, but the keyboard will be locked until the User password is
entered.
Security Hot Key (CTRL-ALT-)
This allows you to set a hot key that, when pressed, will lock the keyboard until the User password is entered.
EXIT SCREEN
Exit Saving Changes
When selected, this allows you to save the change to CMOS and exit the Setup program. You can also press the <F10>
key anywhere in the Setup program to do this.
Exit Discarding Changes
When selected, this allows you to exit the Setup program without saving any changes. This means that any changes
made while in the Setup program will be discarded and NOT SAVED. Pressing the <Esc> key in any of the four main
screens will do this.
Load Setup Defaults
When selected, this allows you to reset 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 values from the ROM table.
Discard Changes
When selected, this allows you to discard 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
values that were present when the system was turned on.
Performance/AU Technical Product Specification • Page 33
Appendix I − PCI Configuration Error Messages
The following PCI messages are displayed as a group with bus, device and function information.
<'NVRAM Checksum Error, NVRAM Cleared'>, \ ; String
<'System Board Device Resource Conflict'>, \ ; String
<'Primary Output Device Not Found'>, \ ; String
<'Primary Input Device Not Found'>, \ ; String
<'Primary Boot Device Not Found'>, \ ; String
<'NVRAM Cleared By Jumper'>, \ ; String
<'NVRAM Data Invalid, NVRAM Cleared'>, \ ; String
<'Static Device Resource Conflict'>, \ ; String
The following messages chain together to give a message such as:
"PCI I/O Port Conflict: Bus: 00, Device 0D, Function: 01".
If and when more than 15 PCI conflict errors are detected, the log full message is displayed.
<'PCI I/O Port Conflict:'>, \ ; String
<'PCI Memory Conflict: '>, \ ; String
<'PCI IRQ Conflict: '>, \ ; String
<' Bus '>, \ ; String
<', Device '>, \ ; String
<', Function '>, \ ; String
<'PCI Error Log is Full.'>, \ ; String
<'Floppy Disk Controller Resource Conflict '>, \ ; Text
<'Primary IDE Controller Resource Conflict '>, \ ; Text
<'Secondary IDE Controller Resource Conflict '>, \ ; Text
<'Parallel Port Resource Conflict '>, \ ; Text
<'Serial Port 1 Resource Conflict '>, \ ; Text
<'Serial Port 2 Resource Conflict '>, \ ; Text
Performance/AU Technical Product Specification • Page 34
Appendix J − BIOS Error messages and Beep Codes
Errors can occur during POST (Power On Self Test) which is performed every time the system is powered on. Fatal errors,
which prevent the system from continuing the boot process, are communicated through a series of audible beeps. Other errors
are displayed in the following format:
ERROR Message Line 1
ERROR Message Line 2
For most displayed error messages, there is only one message. If a second message appears, it is "RUN Setup". If this message
occurs, press <F1> to run the Setup utility.
BEEP CODES
Beeps
Error Message
1 long,
2 short
1 long,
3 short
1 long,
x short
1
2
3
4
No video card found
Description
Refresh Failure
Parity Error
Base 64 KB Memory Failure
Timer Not Operational
5
6
7
8
9
10
11
Processor Error
8042 - Gate A20 Failure
Processor Exception Interrupt Error
Display Memory Read/Write Error
ROM Checksum Error
CMOS Shutdown Reg Rd/Wrt Error
Cache Error / External Cache Bad
No Monitor connected
Video related failure
Applies only to motherboards with no on-bd video.
Applies only to motherboards with on-bd video present.
Other video beep codes may exist and are tied to specific video BIOS implementations.
Contact the vendor for details should the need arise.
The memory refresh circuitry on the motherboard is faulty.
Parity error in the first 64 KB of memory.
Memory failure in the first 64 KB.
Memory failure in the first 64 KB of memory, or Timer 1 on the motherboard is not
functioning.
The CPU on the motherboard generated an error.
The keyboard controller (8042) may be bad. The BIOS cannot switch to protected mode.
The CPU generated an exception interrupt.
System video adapter is either missing or its memory is faulty. This is not a fatal error.
ROM checksum value does not match the value encoded in BIOS.
The shutdown register for CMOS RAM failed.
The external cache is faulty.
ERROR MESSAGES
Error Message
8042 Gate - A20 Error
Address Line Short!
Cache Memory Bad, Do Not
Enable Cache!
CH-2 Timer Error
CMOS Battery State Low
CMOS Checksum Failure
CMOS System Options Not Set
CMOS Display Type Mismatch
CMOS Memory Size Mismatch
CMOS Time and Date Not Set
Diskette Boot Failure
Display Switch Not Proper
DMA Error
DMA #1 Error
DMA #2 Error
FDD Controller Failure
HDD Controller Failure
INTR #1 Error
INTR #2 Error
Explanation
Gate A20 on the keyboard controller (8042) is not working. Replace the 8042.
Error in the address decoding circuitry on the motherboard.
Cache memory is defective. Replace it.
Most AT systems include two timers. There is an error in timer 2.
CMOS RAM is powered by a battery. The battery power is low. Replace the battery.
After CMOS RAM values are saved, a checksum value is generated for error checking. The previous value
is different from the current value. Run AMIBIOS Setup.
The values stored in CMOS RAM are either corrupt or nonexistent. Run Setup.
The video type in CMOS RAM does not match the type detected by the BIOS. Run AMIBIOS Setup.
The amount of memory on the motherboard is different than the amount in CMOS RAM. Run Setup.
Run Standard CMOS Setup to set the date and time in CMOS RAM.
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.
The display jumper is not implemented on this product, this error will not occur.
Error in the DMA controller.
Error in the first DMA channel.
Error in the second DMA channel.
The BIOS cannot communicate with the floppy disk drive controller. Check all appropriate connections
after the system is powered down.
The BIOS cannot communicate with the hard disk drive controller. Check all appropriate connections after
the system is powered down.
Interrupt channel 1 failed POST.
Interrupt channel 2 failed POST.
Performance/AU Technical Product Specification • Page 35
ERROR MESSAGES (CONT.)
Invalid Boot Diskette
Keyboard Is Locked...Unlock It
Keyboard Error
KB/Interface Error
Off Board Parity Error
The BIOS can read the disk in floppy drive A:, but cannot boot the system. Use another boot disk.
The keyboard lock on the system is engaged. The system must be unlocked to continue.
There is a timing problem with the keyboard. Set the Keyboard option in Standard CMOS Setup to Not
Installed to skip the keyboard POST routines.
There is an error in the keyboard connector.
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 error in motherboard memory. The format is:
OFF BOARD PARITY ERROR ADDR (HEX) = (XXXX)
XXXX is the hex address where the error occurred.
Parity Error ????
Parity error in system memory at an unknown address.
ISA NMI MESSAGES
Memory Parity Error at xxxxx
I/O Card Parity Error at xxxxx
DMA Bus Time-out
Memory failed. If the memory location can be determined, it is displayed as xxxxx. If not, the message
is Memory Parity Error ????.
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 ????.
A device has driven the bus signal for more than 7.8 microseconds.
Appendix K − BIOS Updates
The Performance/AU incorporates the AMIBIOS in a Flash memory component. Flash BIOS allows easy upgrades without
the need to replace an EPROM. The upgrade utility fits on a floppy diskette and provides the capability to save, verify, and
update the system BIOS. The upgrade utility also provides the capability to install alternate languages for BIOS messages and
the Setup utility. The upgrade utility can be run from a hard drive or a network drive, but no memory managers can be
installed during upgrades.
The latest upgrade utility and BIOS are available from your service provider or from the Intel bulletin board.
USING THE UPGRADE UTILITY
If the utility is obtained from the BBS, UNZIP the archive and copy the files to a bootable MS-DOS 3.3, 4.01, 5.0, or 6.x
diskette. Reboot the system with the upgrade diskette in the bootable floppy drive and follow the menu-driven program.
Prior to starting the update, the user must make a note of the current Setup parameters. After the update completes, CMOS
memory should be reset to default values by entering Setup and hitting the <F5> key. The user may then re-enter his
original values. CMOS memory must be reset to default values because the mapping of the parameters to specific CMOS
memory locations may change from one version of BIOS to the next. If CMOS is not reset, erratic operation can occur.
RECOVERY PROCESS
In the unlikely event that a Flash upgrade is interrupted catastrophically, it is possible the BIOS may be left in an unusable
state. Recovering from this condition requires the following steps (be sure a power supply and speaker have been attached to
the board, and a floppy drive is connected as drive A:):
1. Change Flash Recovery jumper to the recovery mode position.
2. Install the bootable upgrade diskette into drive A: and reboot the system.
3. Because of the small amount of code available in the non-erasable boot block area, no video is available to direct the
procedure. The procedure can be monitored by listening to the speaker and looking at the floppy drive LED. When the
system beeps and the floppy drive LED is lit, the system is copying the recovery code into the Flash device. As soon as the
drive LED goes off, the recovery is complete.
5. Turn the system off.
6. Change the Flash Recovery jumper back to the default position.
7. Leave the upgrade floppy in drive A: and turn the system on.
8. Continue with the original upgrade.
Performance/AU Technical Product Specification • Page 36
Appendix L − Environmental Standards
Parameter
Temperature
Voltage
Shock
Vibration
Condition
Specification
Non-Operating
-40°C to +70°C
Operating
+0°C to +55°C (min. airflow of 200 LFM)
Operating
+5
+/- 5%
-5
+/- 5%
+12
+/- 5%
-12
+/- 5%
+3.3
+/- 5%
Non-Operating
Unpackaged
Trapezoidal, 50.0G, 11ms
Packaged
Half sine, 2ms, 36" simulated free fall height
Unpackaged
5 Hz - 500 Hz, 3.1 gRMS random
Packaged
10 Hz - 500 Hz, 1.0 gRMS random
Table L-1. Environmental standards
Appendix M − Reliability Data
The Mean-Time-Between-Failures (MTBF) data is calculated from predicted data @ 55C.
Performance/AU motherboard
(includes two 2Mx36 SIMMs)
63,049 Hours
Performance/AU Technical Product Specification • Page 37
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