R
TXP4-X
Pentium ATX Motherboard
®
USER’S MANUAL
USER’S NOTICE
No part of this manual, including the products and softwares described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language
in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS,
EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF
PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL
OR PRODUCT.
Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or
explanation and to the owners’ benefit, without intent to infringe.
• Intel, LANDesk, and Pentium are registered trademarks of Intel Corporation.
• IBM and OS/2 are registered trademarks of International Business Machines.
• Symbios is a registered trademark of Symbios Logic Corporation.
• Windows and MS-DOS are registered trademarks of Microsoft Corporation.
• Sound Blaster AWE32 and SB16 are trademarks of Creative Technology Ltd.
• Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated.
The product name and revision number are both printed on the board itself. Manual revisions
are released for each board design represented by the digit before and after the period of the
manual revision number. Manual updates are represented by the third digit in the manual
revision number.
For previous or updated manuals, BIOS, drivers, or product release information, contact ASUS
at http://www.asus.com.tw or through any of the means indicated on the following page.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT
ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBLITY OR LIABILITY FOR
ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARES DESCRIBED IN IT.
Copyright © 1997 ASUSTeK COMPUTER INC. All Rights Reserved.
Product Name:
ASUS TXP4-X
Manual Revision: 1.01
Release Date:
July 1997
2
ASUS TXP4-X User’s Manual
ASUS CONTACT INFORMATION
ASUSTeK COMPUTER INC.
Marketing Info
Address:
Telephone:
Fax:
Email:
150 Li-Te Road, Peitou, Taipei, Taiwan 112, ROC
+886-2-894-3447
+886-2-894-3449
info@asus.com.tw
Technical Support
Fax:
BBS:
Email:
WWW:
Gopher:
FTP:
+886-2-895-9254
+886-2-896-4667
tsd@asus.com.tw
www.asus.com.tw
gopher.asus.com.tw
ftp.asus.com.tw/pub/ASUS
ASUS COMPUTER INTERNATIONAL
Marketing Info
Address:
Telephone:
Fax:
Email:
721 Charcot Avenue, San Jose, CA 95131, USA
+1-408-474-0567
+1-408-474-0568
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Technical Support
BBS:
Email:
WWW:
+1-408-474-0569
tsd-usa@asus.com.tw
www.asus.com
ASUS COMPUTER GmbH
Marketing Info
Address:
Telephone:
Fax:
Email:
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info-ger@asus.com.tw
Technical Support
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Email:
Hotline:
49-2102-448690
tsd-ger@asus.com.tw
49-2102-499712
ASUS TXP4-X User’s Manual
3
CONTENTS
I. INTRODUCTION ........................................................................... 7
How this Manual is Organized ........................................................ 7
Item Checklist .................................................................................. 7
II. FEATURES .................................................................................... 8
Features of the ASUS TXP4-X Motherboard .................................. 8
Introduction to ASUS TX97 Series of Motherboards ................ 9
The ASUS TXP4-X Motherboard ............................................ 11
III. INSTALLATION ........................................................................ 12
ASUS TXP4-X Motherboard Layout ............................................ 12
Installation Steps ............................................................................ 14
1. Jumpers ...................................................................................... 14
Jumper Settings .................................................................. 15
Compatible Cyrix CPU Identification ................................ 16
2. System Memory (SIMM & DIMM) ......................................... 18
SIMM Memory Installation ................................................ 20
DIMM Memory Installation Procedures: ........................... 21
3. Central Processing Unit (CPU) ................................................. 22
4. Expansion Cards ....................................................................... 23
Expansion Card Installation Procedure .............................. 23
Assigning IRQs for Expansion Cards ................................. 23
Assigning DMA Channels for ISA Cards ........................... 24
5. External Connectors .................................................................. 25
Power Connection Procedures ................................................. 33
IV. BIOS SOFTWARE ..................................................................... 34
Support Software ........................................................................... 34
Flash Memory Writer Utility .................................................... 34
Main Menu ......................................................................... 35
Advanced Features Menu ................................................... 35
Managing and Updating Your Motherboard’s BIOS ................ 36
4
ASUS TXP4-X User’s Manual
CONTENTS
6. BIOS Setup ............................................................................... 37
Load Defaults ..................................................................... 38
Standard CMOS Setup ............................................................. 38
Details of Standard CMOS Setup: ...................................... 38
BIOS Features Setup ................................................................ 41
Details of BIOS Features Setup .......................................... 41
Chipset Features Setup ............................................................. 44
Details of Chipset Features Setup ....................................... 44
Power Management Setup ........................................................ 47
Details of Power Management Setup ................................. 47
PNP and PCI Setup .................................................................. 50
Details of PNP and PCI Setup ............................................ 50
Load BIOS Defaults ................................................................. 52
Load Setup Defaults ................................................................. 52
Supervisor Password and User Password ................................ 53
IDE HDD Auto Detection ........................................................ 54
Save & Exit Setup .................................................................... 55
Exit Without Saving ................................................................. 55
Desktop Management Interface (DMI) .......................................... 56
Introducing the ASUS DMI Configuration Utility ............. 56
System Requirements ......................................................... 56
Using the ASUS DMI Configuration Utility ...................... 57
VI. ASUS PCI SCSI Cards .............................................................. 59
Symbios SCSI BIOS and Drivers .................................................. 59
ASUS PCI-SC200 & PCI-SC860 SCSI Cards .............................. 59
Setting Up the ASUS PCI-SC200 & PCI-SC860 ..................... 60
Setting the INT Assignment for the ASUS PCI-SC200 ........... 60
Terminator Requirements for SCSI Devices ............................ 60
Terminator Settings for the ASUS PCI-SC860 ........................ 61
Terminator Settings for the ASUS PCI-SC200 ........................ 61
SCSI ID Numbers for SCSI Devices ....................................... 62
SCSI ID Priority ....................................................................... 62
ASUS TXP4-X User’s Manual
5
FCC & DOC COMPLIANCE
Federal Communications Commission Statement
This device complies with FCC Rules Part 15. Operation is subject to the following
two conditions:
•
•
This device may not cause harmful interference, and
This device must accept any interference received, including interference that
may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with manufacturer’s instructions, may cause
harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
•
•
•
•
Re-orient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment to an outlet on a circuit different from that to which
the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
WARNING! The use of shielded cables for connection of the monitor to the
graphics card is required to assure compliance with FCC regulations. Changes
or modifications to this unit not expressly approved by the party responsible for
compliance could void the user’s authority to operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions
from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.
6
ASUS TXP4-X User’s Manual
I. INTRODUCTION
I. INTRODUCTION
(Manual / Checklist)
How this Manual is Organized
This manual is divided into the following sections:
I.
II.
III.
IV.
V.
VI.
Introduction:
Manual information and checklist
Features:
Information and specifications concerning this product
Installation:
Instructions on setting up the motherboard.
BIOS Software
Instructions on setting up the BIOS software
Support Software Information on the included support software
ASUS SCSI Cards Installation of ASUS SCSI cards (optional)
Item Checklist
Please check that your package is complete. If you discover damaged or missing
items, please contact your retailer.
þ
The ASUS TXP4-X motherboard
þ
1 IDE ribbon cable
þ
1 floppy ribbon cable
þ
Support Drivers & Utilities
• Flash Memory Writer utility to update the FLASH BIOS
• Desktop Management Interface (DMI) utility
• TX patch files for Windows 95
• Readme files for descriptions and use of the files
• Technical Support Form
þ
This user’s manual
¨
Infrared module (optional)
¨
ASUS PCI-SC200 Fast-SCSI or PCI-SC860 Ultra-Fast SCSI card (optional)
ASUS TXP4-X User’s Manual
7
II. FEATURES
Features of the ASUS TXP4-X Motherboard
II. FEATURES
(Features)
The ASUS TXP4-X is carefully designed for the demanding PC user who wants
many features in a motherboard. This motherboard:
• Intel Chipset: Features Intel’s 430TX PCIset with I/O subsystems.
• Versatile Processor Support: Intel Pentium® 75-233MHz (P55C-MMX™, P54C/
P54CS), IBM®/Cyrix® 6x86-PR166+ (Rev 2.7 or later), IBM®/Cyrix® 6x86MX™
(PR166 & faster), AMD-K5™ (PR75-PR133), AMD-K6™ (PR166 & faster).
• Versatile Memory Support: Is equipped with two DIMM sockets to support 8128MB 168-pin 3.3Volt SDRAM/EDO memory modules up to 256MB. Is also
equipped with four SIMM sockets to support 4-64MB 72-pin Fast Page Mode
(FPM) or Extended Data Out (EDO) memory modules up to 256MB. SIMMs
and DIMMs cannot be used at the same time.
• Easy Installation: Is equipped with BIOS that supports auto detection of hard
drives, PS/2 mouse, and Plug and Play devices to make setup of hard drives,
expansion cards, and other devices virtually automatic.
• ISA & PCI Expansion: Provides four 16-bit ISA and four 32-bit PCI slots.
• Super Multi-I/O: Provides two high-speed UART-compatible serial ports and
one parallel port with EPP and ECP capabilities.
• Desktop Management Interface (DMI): Supports DMI through BIOS which
allows hardware to communicate within a standard protocol creating a higher
level of compatibility. (Requires DMI-enabled components.) (See section V)
• PCI Bus Master IDE Controller: Comes with an onboard PCI Bus Master
IDE controller with two connectors that supports four IDE devices in two channels, supports PIO Modes 3 and 4 and Bus Master IDE DMA Mode 2, and
supports Enhanced IDE devices such as Tape Backup and CD-ROM drives.
Supports two drives of either 5.25-inch (360KB or 1.2MB) or 3.5-inch (720KB,
1.44MB, or 2.88MB) disk drives. Supports Japanese “Floppy 3 mode” (3.5-inch
disk drive: 1.2MB) and LS-120 floppy disk drives (3.5-inch disk drive: 120 MB,
1.44MB, 720K). BIOS supports IDE CD-ROM or SCSI device boot-up.
• Level 2 Cache: 512KB Pipelined Burst SRAM onboard.
• Optional IrDA: Supports and optional IrDA receiver/transmitter device.
• SCSI BIOS: Has firmware to support optional ASUS SCSI controller cards.
• Optional IrDA Connector: Supports an optional infrared port module for wireless interface.
8
ASUS TXP4-X User’s Manual
II. FEATURES
Introduction to ASUS TX97 Series of Motherboards
Performance
• SDRAM Optimized Performance — ASUS TX97 series of motherboards support the new generation memory, Synchronous Dynamic Random Access
Memory (SDRAM), which increases the data transfer rate from 264MB/s max
using EDO memory to 528MB/s max using SDRAM.
• Double the IDE Transfer Speed — ASUS TX97 series of motherboards with
Intel 430TX PCIset improves IDE transfer rate using Bus Master UltraDMA/33
IDE, which can handle data transfers up to 33MB/s. The best of all is that this
new technology is compatible with existing ATA-2 IDE specifications so there
is no need to upgrade current hard drives or cables.
• Concurrent PCI — Concurrent PCI allows multiple PCI transfers from PCI
master busses to memory to CPU.
• ACPI Ready — ACPI (Advanced Configuration and Power Interface) is also
implemented on all ASUS 430TX series of motherboards. ACPI provide more
Energy Saving Features for the future operating systems (OS) supporting OS
Direct Power Management (OSPM) functionality. With these features implemented in the OS, PCs can be ready around the clock, yet satisfy all the energy
saving standards. To fully utilize the benefits of ACPI, an ACPI-supported OS
such as in the successor to Windows 95 must be used.
• PC ’97 Compliant — Both the BIOS and hardware levels of ASUS TX97 series of motherboards meet PC ’97 compliancy. The new PC 97 requirements for
systems and components are based on the following high-level goals: Support
for Plug and Play compatibility and power management for configuring and
managing all system components, and 32-bit device drivers and installation procedures for both Windows 95 and Windows NT.
ASUS TXP4-X User’s Manual
9
(This page is intentionally left blank.)
10
ASUS TXP4-X User’s Manual
II. FEATURES
The ASUS TXP4-X Motherboard
4 SIMM
Sockets
2 DIMM
Sockets
CPU ZIF
Socket 7
512KB Pipelined
Burst L2 Cache
T: PS/2 Mouse
B: PS/2 Keyboard
II. FEATURES
(Motherboard Parts)
T: USB Port 1
B: USB Port 2
COM 1
T: Parallel Conn.
B: Serial Conn.
COM 2
Intel’s 430TX
PCIset
3 PCI Slots
ISA/PCI
Shared Slot
3 ISA Slots
Programmable
Flash ROM
ASUS TXP4-X User’s Manual
11
III. INSTALLATION
ASUS TXP4-X Motherboard Layout
CPU Fan
BUS Freq.
BF0
BF1
BF2
M/IO
Multi-I/O (En/Dis)
Secondary IDE
Intel
430TX
PCIset
BUS FREQ
FS0
FS1
FS2
Primary IDE
CPU ZIF Socket 7
1 0
Row 3 2 1 0
CPU Voltage
VID0
VID1
VID2
VID3
256KB/512KB Onboard L2 Cache
COM 1
COM 2
Parallel Port
DIMM Socket 1 (64-bit, 168-pin module)
1 0
Board Power Input
for ATX Power Supply
DIMM Socket 2 (64-bit, 168-pin module)
3 2
SIMM Socket 1 (32-bit, 72-pin module)
III. INSTALLATION
(Motherboard Layout)
Row 3 2
SIMM Socket 2 (32-bit, 72-pin module)
FANPWR3
SIMM Socket 3 (32-bit, 72-pin module)
T: USB 1
B: USB 2
SIMM Socket 4 (32-bit, 72-pin module)
USB
T: Mouse
B: Keyboard
Floppy Drives
PS/2
PCI Slot 1
PCI Slot 2
R
Intel PIIX4
PCIset
Keyboard BIOS
CR2032
3 Volt
Lithium Cell
ISA Slot 1
BIOS Power
FANPWR1
ISA Slot 2
Flash ROM
for BIOS
ISA Slot 3
Infrared Con. (IrDA)
ISA Slot 4
12
ASUS TXP4-X User’s Manual
IDE
LED
Panel Connections
RTCLR
PCI Slot 4
RTC (Test/Clear)
PCI Slot 3
III. INSTALLATION
Jumpers
1)
2)
3)
4)
5)
M/IO
RTCLR
VID0, 1, 2, 3
FS0, FS1, FS2
BF0, BF1, BF2
p. 15
p. 15
p. 16
p. 17
p. 17
Multi-I/O Selection (Enable/Disable)
Real Time Clock RAM (Operation/Clear Data)
CPU Voltage Regulator Output Selection
CPU External Clock (BUS) Frequency Selection
CPU:BUS Frequency Ratio
p. 19
p. 20
p. 21
p. 22
p. 23
p. 23
System Memory Upgrade
72-Pin SIMM Memory Expansion Sockets
168-Pin DIMM Memory Expansion Sockets
Central Processing Unit (CPU) Socket
16-bit ISA Bus Expansion Slots
32-bit PCI Bus Expansion Slots
p. 25
p. 25
p. 26
p. 26
p. 26
p. 27
p. 27
p. 28
p. 28
p. 29
p. 29
p. 30
p. 30
p. 30
p. 30
p. 30
p. 30
p. 30
PS/2 Keyboard Connector (6-pin female)
PS/2 Mouse Connector (6-pin female)
Parallel (Printer) Port Connector (25-pin female)
Serial Port COM1 & COM2 (two 9-pin female)
Floppy Drive Connector (34-pin block)
Universal Serial BUS Ports 1 & 2 (two 4-pin female)
Primary / Secondary IDE Connector (40-pin blocks)
IDE LED Activity Light (2 pins)
Chassis-1, CPU-2, Power Supply-3 Fan Power Lead (3-pin block)
Infrared Port Module Connector (5 pins)
ATX Motherboard Power Connector (20-pin block)
System Message LED (2 pins)
SMI Switch Lead (2 pins)
ATX Power & Soft-Off Switch Lead (2 pins)
Reset Switch Lead (2 pins)
System Power LED Lead (3 pins)
Keyboard Lock Switch Lead (2 pins)
Speaker Output Connector (4 pins)
Expansion Slots
1)
2)
3)
4)
5)
6)
System Memory
SIMM Sockets
DIMM Sockets
CPU ZIF Socket 7
SLOT 1, 2, 3, 4
PCI 1, 2, 3, 4
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
PS2KEYBOARD
PS2MOUSE
PRINTER
COM1, COM2
FLOPPY
USB
Primary / Second IDE
IDELED
FANPWR1, 2, 3
IR
ATXPWR
MSG LED (PANEL)
SMI (PANEL)
PWR SW (PANEL)
RESET (PANEL)
PWR LED (PANEL)
KEYLOCK (PANEL)
SPEAKER (PANEL)
ASUS TXP4-X User’s Manual
III. INSTALLATION
(Map of Board)
Connectors
13
III. INSTALLATION
Installation Steps
Before using your computer, you must complete the following steps:
1.
2.
3.
4.
5.
6.
Set Jumpers on the Motherboard
Install System Memory
Install the Central Processing Unit (CPU)
Install Expansion Cards
Connect Ribbon Cables, Cabinet Wires, and Power Supply
Setup the BIOS Software
1. Jumpers
III. INSTALLATION
(Jumpers)
Several hardware settings are made through the use of jumper caps to connect jumper
pins (JP) on the motherboard. See motherboard layout for locations of jumpers. The
jumper settings will be described numerically such as [----], [1-2], [2-3] for no connection, connect pins 1&2, and connect pins 2&3 respectively. Pin 1 for our motherboards
or on the left
when holding the motherboard with the
is always on top
keyboard connector away from yourself. A “1” is written besides pin 1 on jumpers
with three pins. The jumpers will also be shown graphically such as
to connect
pins 1&2 and
to connect pins 2&3. Jumpers with two pins will be shown as
for Short (On) and
for Open (Off). For manufacturing simplicity, the jumpers may be sharing pins from other groups. Use the diagrams in this manual instead of
following the pin layout on the board. Settings with two jumper numbers require that
both jumpers be moved together. To connect the pins, simply place a plastic jumper
cap over the two pins as diagramed.
Pin 1
Pin 1
WARNING! Computer motherboards, baseboards and components, such as SCSI
cards, contain very delicate Integrated Circuit (IC) chips. To protect them against
damage from static electricity, you should follow some precautions whenever you
work on your computer.
1. Unplug your computer when working on the inside.
2. Use a grounded wrist strap before handling computer components. If you do
not have one, touch both of your hands to a safely grounded object or to a
metal object, such as the power supply case.
3. Hold components by the edges and try not to touch the IC chips, leads or
connectors, or other components.
4. Place components on a grounded antistatic pad or on the bag that came with
the component whenever the components are separated from the system.
14
ASUS TXP4-X User’s Manual
III. INSTALLATION
Jumper Settings
1. Onboard Multi-I/O Selection (M/IO)
You can selectively disable each onboard Multi-I/O item (floppy, serial, parallel, and IrDA) through the Chipset Features Setup of BIOS SOFTWARE or
disable all multi-I/O items at once with the following jumper so you can use
your own multi-I/O card.
M/IO
[1-2] (Default)
[2-3]
R
M/IO
1
2
3
M/IO
1
2
3
Enable (Default)
Disabled
III. INSTALLATION
(Jumpers)
Multi-I/O
Enable
Disable
Multi I/O Setting (Enable / Disable)
2. Real Time Clock (RTC) RAM (RTCLR)
The CMOS RAM is powered by the onboard button cell battery. To clear the RTC data:
(1) Turn off your computer and remove the AC power , (2) Move this jumper to “Clear
Data,” (3) Move the jumper back to “Operation,” (4) Turn on your computer, (5) Hold
down <Delete> during bootup and enter BIOS setup to reenter user preferences.
Battery Test Jumper (RTCLR)
You can test the battery’s current by removing this jumper and attaching a current meter to pins 1&2.
WARNING! You must unplug the power cord to your power supply to ensure that
there is no power to your motherboard. The CMOS RAM containing BIOS setup
information may be cleared by this action. You should enter BIOS to “Load Setup
Defaults” and reenter any user information after removing and reapplying this jumper.
RTC RAM
Operation
Clear Data
RTCLR
[1-2] (Default)
[2-3] (momentarily)
RTCLR
Operation (Default)
Clear Data
R
RTCLR
Battery Test
RTC RAM (Operation / Clear Data)
ASUS TXP4-X User’s Manual
15
III. INSTALLATION
Compatible Cyrix CPU Identification
The only Cyrix CPU that is supported on this motherboard is
labeled Cyrix 6x86 PR166+ but must be Revision 2.7 or later.
Look on the underside of the CPU for the serial number. The
number should read G8DC6620A or later.
3. Voltage Regulator Output Selection (VID0, 1, 2, 3)
These jumpers set the voltage supplied to the CPU. The voltage regulators will automatically detect and switch between Single Power Plane & Dual Power Planes.
III. INSTALLATION
(Jumpers)
Pentium MMX (P55C) Intel Pentium (P54C) AMD-K6
(150MHz-233MHz) (75MHz-200MHz) (PR166 and faster)
Manufacturer
CPU Type
AMD-K5
(PR75-PR133)
IBM/Cyrix 6x86(MX) IBM/Cyrix 6x86(M1)
(PR166 and faster) (PR166 and faster)
Single Plane Dual Plane VID3 VID2 VID1 VID0
Intel/AMD/IBM/Cyrix P54C/CS/K5/M1 3.5V(VRE)
----
AMD
K6-PR166,200
----
2.9 Volts
Intel/AMD
P54C/CS/K5
3.4V(STD)
----
Intel/IBM/Cyrix
P55C/6x86MX
----
2.8 Volts
AMD
K6-PR233
----
3.2 Volts
[2-3]
[1-2]
[----]
[2-3]
[2-3]
[2-3]
[----]
[1-2]
[2-3]
[2-3]
VID0
VID1
VID2
VID3
1.8 Volts
1
2
3
1.9 Volts
R
1
2
3
2.7 Volts
1
2
3
2.5 Volts
1
2
3
2.8 Volts
1
2
3
3.2 Volts
[2-3]
VID0
VID1
VID2
VID3
VID0
VID1
VID2
VID3
1
2
3
Voltage Regulator Output Selection
[----]
1
2
3
2.9 Volts
1
2
3
3.4 V *
3.5 V *
Setting these two jumpers’ VID1 to
*[2-3]
or [----] (removed) will result in
the same voltages, respectively.
16
1
2
3
ASUS TXP4-X User’s Manual
III. INSTALLATION
4. CPU External (BUS) Frequency Selection (FS0, FS1, FS2)
These jumpers tell the clock generator what frequency to send to the CPU. These allow
the selection of the CPU’s External frequency (or BUS Clock). The BUS Clock times
the BUS Ratio equals the CPU’s Internal frequency (the advertised CPU speed).
5. CPU to BUS Frequency Ratio (BF0, BF1, BF2)
These jumpers set the frequency ratio between the Internal frequency of the CPU
and the External frequency (called the BUS Clock) within the CPU. These must be
set together with the above jumpers CPU External (BUS) Frequency Selection.
FS0
FS1
FS2
FS0
FS1
FS2
FS0
FS1
FS2
FS0
FS1
FS2
1
2
3
1
2
3
1
2
3
1
2
3
66MHz
50MHz
60MHz
55MHz
CPU External Clock (BUS) Frequency Selection
BF0
BF1
BF2
1
2
3
1
2
3
1
2
3
2.5x(5/2)
2.5x(5/2)
2.0x(2/1)
III. INSTALLATION
(Jumpers)
Complete Names:
Intel Pentium P54C, P55C-MMX P54C/K5
1.5x(3/2) 2.0x(2/1)
AMD K5, K6
3.5x(7/2) 2.0x(2/1)
P55C/K6/MX
IBM/Cyrix 6x86(M1), 6x86MX(M2) IBM/Cyrix 6x86 3.0x(3/1) 2.0x(2/1)
CPU : BUS Frequency Ratio
BF0
BF1
BF2
BF0
BF1
BF2
BF0
BF1
BF2
R
1
2
3
3.0x(3/1)
3.0x(3/1)
4.0x(4/1)
Set the jumpers by the Internal speed of the Intel, AMD, IBM, or Cyrix CPU as follows:
CPU Model
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Freq.
233MHz
200MHz
166MHz
150MHz
133MHz
120MHz
100MHz
90MHz
75MHz
Ratio
3.5x
3.0x
2.5x
2.5x
2.0x
2.0x
1.5x
1.5x
1.5x
BUS Freq.
66MHz
66MHz
66MHz
60MHz
66MHz
60MHz
66MHz
60MHz
50MHz
(BUS Freq.)
FS2 FS1 FS0
[2-3] [1-2] [2-3]
[2-3] [1-2] [2-3]
[2-3] [1-2] [2-3]
[2-3] [2-3] [1-2]
[2-3] [1-2] [2-3]
[2-3] [2-3] [1-2]
[2-3] [1-2] [2-3]
[2-3] [2-3] [1-2]
[2-3] [2-3] [2-3]
(Freq. Ratio)
BF1 BF0
[1-2] [1-2]
[2-3] [1-2]
[2-3] [2-3]
[2-3] [2-3]
[1-2] [2-3]
[1-2] [2-3]
[1-2] [1-2]
[1-2] [1-2]
[1-2] [1-2]
AMD-K6-PR233
AMD-K6-PR200
AMD-K6-PR166
233MHz
200MHz
166MHz
3.5x
3.0x
2.5x
66MHz
66MHz
66MHz
[2-3] [1-2] [2-3]
[2-3] [1-2] [2-3]
[2-3] [1-2] [2-3]
[1-2] [1-2]
[2-3] [1-2]
[2-3] [2-3]
AMD-K5-PR133
AMD-K5-PR120
AMD-K5-PR100
AMD-K5-PR90
AMD-K5-PR75
100MHz
90MHz
100MHz
90MHz
75MHz
1.5x
1.5x
1.5x
1.5x
1.5x
66MHz
60MHz
66MHz
60MHz
50MHz
[2-3]
[2-3]
[2-3]
[2-3]
[2-3]
[1-2]
[1-2]
[1-2]
[1-2]
[1-2]
IBM/Cyrix6x86MX-PR233 200MHz
IBM/Cyrix6x86MX-PR200 166MHz
IBM/Cyrix6x86MX-PR166 150MHz
3.0x
2.5x
2.5x
66MHz
66MHz
60MHz
[2-3] [1-2] [2-3]
[2-3] [1-2] [2-3]
[2-3] [2-3] [1-2]
[2-3] [1-2]
[2-3] [2-3]
[2-3] [2-3]
*IBM/Cyrix -PR166+
2.0x
66MHz
[2-3] [1-2] [2-3]
[1-2] [2-3]
133MHz
[1-2]
[2-3]
[1-2]
[2-3]
[2-3]
[2-3]
[1-2]
[2-3]
[1-2]
[2-3]
[1-2]
[1-2]
[1-2]
[1-2]
[1-2]
*NOTE: Only IBM or Cyrix Rev 2.7 or later is supported on this motherboard (see preceding page).
Bootup screen will show 6x86-P166+ with the Cyrix PR166+ installed on this motherboard.
ASUS TXP4-X User’s Manual
17
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18
ASUS TXP4-X User’s Manual
III. INSTALLATION
2. System Memory (SIMM & DIMM)
This motherboard supports four 72-pin, 32-bit SIMMs (Single Inline Memory Modules) of 4, 8, 16, 32, or 64MB to form a memory size between 8MB to 256MB. The
SIMMs can be either 60ns or 70ns Fast Page Mode (FPM) (Asymmetric or Symmetric), or Enhanced Data Out (EDO) (BEDO & Parity are not supported). SIMMs
must be installed in pairs so that each Row (see motherboard layout for Row locations) contains 64-bits of the same size and type of memory chips. One side (with
memory chips) of the SIMM module takes up half a Row on the motherboard.
Dual Inline Memory Modules (DIMM’s) can be used when the SIMM sockets are
not used. Two sockets are available for 3.3Volt (power level) Unbuffered Synchronous DRAMs (SDRAM) or EDO DRAM of either 8, 16, 32, 64, or 128MB to form
a memory size between 8MB to 256MB. One side (with memory chips) of the DIMM
module takes up one Row on the motherboard.
Memory Socket
SIMM Memory Module
SIMM Sockets 1&2
(Rows 0 & 1)
4MB, 8MB, 16MB, 32MB, 64MB
72-pin FPM or EDO SIMM
(DIMM Sockets must be empty)
x2
SIMM Sockets 3&4
(Rows 2 & 3)
4MB, 8MB, 16MB, 32MB, 64MB
72-pin FPM or EDO SIMM
(DIMM Sockets must be empty)
x2
Total System Memory (Max 256MB)
=
III. INSTALLATION
(System Memory)
IMPORTANT: Memory speed setup is required through “Auto Configuration” in
BIOS Chipset Setup of the BIOS SOFTWARE. If both 60ns and 70ns memory are
used, set “Auto Configuration” to 70ns. Do not use memory modules with more than
24 chips per module. Modules with more than 24 chips exceed the design specifications of the memory subsystem and will be unstable.
Total Memory
WARNING! Do not install both SIMMs and DIMMs at the same time or else you
will burn your memory. Mixing SIMMs and DIMMs require 5.0Volt (signal level)
tolerant memory chips which are currently unavailable.
Memory Socket
DIMM Memory Module
DIMM Socket 1
(Rows 0 & 1)
8MB, 16MB, 32MB, 64MB, 128MB
168-pin SDRAM or EDO DIMM
(SIMM Sockets must be empty)
x1
DIMM Socket 2
(Rows 2 & 3)
8MB, 16MB, 32MB, 64MB, 128MB
168-pin SDRAM or EDO DIMM
(SIMM Sockets must be empty)
x1
Total System Memory (Max 256MB)
=
ASUS TXP4-X User’s Manual
Total Memory
19
III. INSTALLATION
SIMM Memory Installation
1. The SIMM memory modules will only fit in one orientation as shown because
of a safety tab on one end of the SIMM sockets, which requires the notched end
of the SIMM memory modules.
R
4
3
2
1
III. INSTALLATION
(System Memory)
72 Pin SIMM Sockets
2. Press the memory module firmly into place starting from a 45 degree angle
making sure that all the contacts are aligned with the socket.
3. With your finger tips, rock the memory module into a vertical position so that it
clicks into place.
Support Clip
72 Pin DRAM in SIMM Socket
Safety Tab (This Side Only)
Mounting Hole
4. The plastic guides should go through the two mounting holes on the sides and
the support clips should snap on the other side.
5. To release the memory module, push both support clips outward and rock the
module out of the support clips.
20
ASUS TXP4-X User’s Manual
III. INSTALLATION
DIMM Memory Installation Procedures:
Insert the module(s) as shown. Because the number of pins are different on either
side of the breaks, the module will only fit in the orientation as shown. DRAM
SIMM modules have the same pin contact on both sides. SDRAM DIMM modules
have different pint contact on each side and therefore have a higher pin density.
88 Pins
60 Pins 20 Pins
R
III. INSTALLATION
(System Memory)
Lock
168 Pin DIMM Memory Sockets
The Dual Inline Memory Module (DIMM) memory modules must be 3.3Volt Unbuffered Synchronous DRAM (SDRAM) or Extended Data Output (EDO). You can
identify the type of DIMM module by the illustration below:
168-Pin DIMM Notch Key Definitions (3.3V)
DRAM Key Position
Unbuffered
RFU
Buffered
Voltage Key Position
Reserved
5.0V
3.3V
The notch on the DIMM module will shift between left, center, or right to identify
the type and also to prevent the wrong type to be inserted into the DIMM slot on the
motherboard. You must ask your retailer for the specifications before purchasing.
Four clock signals are supported on this motherboard.
ASUS TXP4-X User’s Manual
21
III. INSTALLATION
3. Central Processing Unit (CPU)
The motherboard provides a 321-pin ZIF Socket 7 that is backward compatible with
ZIF Socket 5 processors. The CPU that came with the motherboard should have a
fan attached to it to prevent overheating. If this is not the case then purchase a fan
before you turn on your system. Apply thermal jelly to the CPU top and then install
the fan onto the CPU.
WARNING! Without a fan circulating air on the CPU and heat sinks, the CPU
and/or heat sinks can overheat and cause damage to both the CPU and the motherboard. (See “CPU Cooling Fan Connector” at the end of this section.)
III. INSTALLATION
(System Processor)
To install a CPU, first turn off your system and remove its cover. Locate the ZIF
socket and open it by first pulling the lever sideways away from the socket then
upwards to a 90-degree right angle. Insert the CPU with the correct orientation as
shown. Use the notched corner of the CPU as your guide. The white dot should point
towards the end the of the lever. Notice that there is a blank area where one hole is
missing from that corner of the square array of pin holes and a “1” printed on the
motherboard next to that corner. Because the CPU has a corner pin for three of the
four corners, the CPU will only fit in the one orientation as shown. The picture is for
reference only; you should have a CPU fan that will cover the face of the CPU. With
the added weight of the CPU fan, no force is required to insert the CPU. Once completely inserted, hold down on the fan and close the socket’s lever.
IMPORTANT: You must set jumpers for “CPU to BUS Frequency Ratio” and
jumpers for “BUS Frequency Selection” depending on the CPU that you install.
Lever Lock
Blank
1
R
ZIF Socket 7 with Pentium MMX Processor
22
ASUS TXP4-X User’s Manual
Notch
1
III. INSTALLATION
4. Expansion Cards
WARNING! Unplug your power supply when adding or removing expansion
cards or other system components. Failure to do so may cause severe damage to
both your motherboard and expansion cards.
First read your expansion card documentation for hardware and software settings
that may be required to set up your specific card.
Expansion Card Installation Procedure
5.
6.
7.
8.
9.
Read the documentation for your expansion card.
Set any necessary jumpers on your expansion card.
Remove your computer system’s cover.
Remove the bracket on the slot you intend to use. Keep the bracket for possible
future use.
Carefully align the card’s connectors and press firmly.
Secure the card on the slot with the screw you removed in step 4.
Replace the computer system’s cover.
Set up the BIOS if necessary (such as IRQ xx Used By ISA: Yes in PNP AND
PCI SETUP)
Install the necessary software drivers for your expansion card.
III. INSTALLATION
(Expansion Cards)
1.
2.
3.
4.
Assigning IRQs for Expansion Cards
Some expansion cards need to use an IRQ to operate. Generally an IRQ must be
exclusively assigned to one use. In a standard design there are 16 IRQs available but
most of them are already in use, leaving 6 IRQs free for expansion cards.
Both ISA and PCI expansion cards may require to use IRQs. System IRQs are available to cards installed in the ISA expansion bus first, then any remaining IRQs are
available to PCI cards. Currently, there are two types of ISA cards. The original ISA
expansion card design, now referred to as legacy ISA cards, requires that you configure the card’s jumpers manually and then install it in any available slot on the ISA
bus. You may use Microsoft Diagnostics (MSD.EXE) utility located in the Windows directory to see a map of your used and free IRQs. If you use Windows 95, the
Resources tab under Device Manager displays the resource settings being used by
a particular device (to access, double-click the System icon under the Control Panel
program). Ensure that no two devices share the same IRQs or your computer will
experience problems when those two devices are in use at the same time.
ASUS TXP4-X User’s Manual
23
III. INSTALLATION
To simplify this process, the motherboard complies with the Plug and Play (PnP)
specification, which was developed to allow automatic system configuration whenever a PnP-compliant card is added to the system. For PnP cards, IRQs are assigned
automatically from those available.
If the system has both legacy and PnP ISA cards installed, IRQs are
assigned to PnP cards from those not used by legacy cards. The PCI and PNP configuration section of the BIOS setup utility can be used to assign which IRQs are
being used by legacy cards. For older legacy cards that do not work with the BIOS,
you may contact your vendor for an ISA Configuration Utility.
III. INSTALLATION
(DMA Channels)
An IRQ number is automatically assigned to PCI expansion cards after those used
by legacy and PnP ISA cards. In the PCI bus design, the BIOS automatically assigns
an IRQ to a PCI slot that contains a card requiring an IRQ. Leave all PCI INT
assignments on “A.” PCI slot 1 automatically assigns an INT letter starting from AB-C-D, PCI slot 2 assigns B-C-D-A, slot 3 assigns C-D-A-B, and slot 4 assigns DA-B-C in these orders, therefore manual offsetting is not necessary.
Assigning DMA Channels for ISA Cards
Some ISA cards, both legacy and PnP, may also need to use a DMA (Direct Memory
Access) channel. DMA assignments for this motherboard are handled the same way
as the IRQ assignment process described earlier. You can select a DMA channel in
the PCI and PnP configuration section of the BIOS Setup utility.
IMPORTANT: To avoid conflicts, reserve the necessary IRQs and DMAs for legacy
ISA cards (under PNP AND PCI SETUP of the BIOS SOFTWARE, choose Yes in
IRQ xx Used By ISA and DMA x Used By ISA for those IRQs and DMAs you want to
reserve).
24
ASUS TXP4-X User’s Manual
III. INSTALLATION
5. External Connectors
WARNING! Some pins are used for connectors or power sources. These are
clearly separated from jumpers in “Map of the Motherboard.” Placing jumper
caps over these will cause damage to your motherboard.
IMPORTANT: Ribbon cables should always be connected with the red stripe on
the Pin 1 side of the connector. The four corners of the connectors are labeled on
the motherboard. Pin 1 is the side closest to the power connector on hard drives
and floppy drives. IDE ribbon cable must be less than 18in. (46cm), with the
second drive connector no more than 6in. (15cm) from the first connector.
III. INSTALLATION
(DMA
(Connectors)
Channels)
1. PS/2 Keyboard Connector (6-pin Female)
This connection is for a standard keyboard using an PS/2 plug (mini DIN). This
connector will not allow standard AT size (large DIN) keyboard plugs. You
may use a DIN to mini DIN adapter on standard AT keyboards.
PS/2 Keyboard (6-pin Female)
2. PS/2 Mouse Connector (6-pin Female)
The system will direct IRQ12 to the PS/2 mouse if one is detected. If not detected, expansion cards can use IRQ12. See “PS/2 Mouse Control” in BIOS
Features Setup of the BIOS SOFTWARE.
PS/2 Mouse (6-pin Female)
ASUS TXP4-X User’s Manual
25
III. INSTALLATION
3. Parallel Printer Connector (25-pin Female)
You can enable the parallel port and choose the IRQ through “Onboard Parallel
Port” in Chipset Features Setup of the BIOS SOFTWARE. NOTE: Serial printers must be connected to the serial port.
Parallel (Printer) Port (25-pin Female)
III. INSTALLATION
(Connectors)
4. Serial Port COM1 and COM2 Connectors (Two 9-pin Male)
The two serial ports can be used for pointing devices or other serial devices. See
“Onboard Serial Port” in Chipset Features Setup of the BIOS SOFTWARE.
COM 1
COM 2
Serial Ports (9-pin Male)
5. Floppy Disk Drive Connector (34-1pin FLOPPY)
This connector supports the provided floppy disk drive ribbon cable. After connecting the single end to the board, connect the two plugs on the other end to the
floppy drives. (Pin 5 is removed to prevent inserting in the wrong orientation when using ribbon cables with pin 5 plugged).
NOTE: Orient the red stripe to Pin 1
Floppy Drive Connector
Pin 1
R
Floppy Disk Drive Connector
26
ASUS TXP4-X User’s Manual
III. INSTALLATION
6. Universal Serial BUS Ports 1 & 2 (Two 4-pin Female)
Two USB ports are available for connecting USB devices.
USB 1
Univeral Serial Bus (USB) 2
III. INSTALLATION
(Connectors)
7. Primary / Secondary IDE connectors (Two 40-1pin IDE)
These connectors support the provided IDE hard disk ribbon cable. After connecting the single end to the board, connect the two plugs at the other end to
your hard disk(s). If you install two hard disks, you must configure the second
drive to Slave mode by setting its jumper accordingly. Please refer to the documentation of your hard disk for the jumper settings. BIOS now supports SCSI
device or IDE CD-ROM bootup (see “HDD Sequence SCSI/IDE First” & “Boot
Sequence” in the BIOS Features Setup of the BIOS SOFTWARE) (Pin 20 is
removed to prevent inserting in the wrong orientation when using ribbon
cables with pin 20 plugged).
TIP: You may configure two hard disks to be both Masters using one ribbon
cable on the primary IDE connector and another ribbon cable on the secondary
IDE connector. You may install one operating system on an IDE drive and another on a SCSI drive and select the boot disk through BIOS Features Setup.
NOTE: Orient the red stripe to Pin 1
Pin 1
Secondary IDE Connector
R
Primary IDE Connector
IDE Connectors
ASUS TXP4-X User’s Manual
27
III. INSTALLATION
8. IDE activity LED (2-pin IDE_LED)
This connector supplies power to the cabinet’s IDE activity LED. Read and
write activity by devices connected to the Primary or Secondary IDE connectors
will cause the LED to light up.
TIP: If the case-mounted LED does not light,
try reversing the 2-pin plug.
R
+
IDE_LED
IDE Activity LED
III. INSTALLATION
(Connectors)
9. Chassis , CPU , & Power Supply Fan Connectors (3-pin FANPWR)
These connectors support cooling fans of 500mAMP (6WATT) or less. Orientate the fans so that the heat sink fins allow airflow to go across the onboard heat
sink(s) instead of the expansion slots. Depending on the fan manufacturer, the
wiring and plug may be different. The red wire should be positive, while the
black should be ground. Connect the fan’s plug to the board taking into consideration the polarity of the this connector.
NOTE: The “Rotation” signal is to be used only by a specially designed fan
with rotation signal.
WARNING! The CPU and/or motherboard will overheat if there is no airflow
across the CPU and onboard heatsinks. Damage may occur to the motherboard
and/or the CPU fan if these pins are incorrectly used. These are not jumpers,
do not place jumper caps over these pins.
Chassis Fan Power
CPU Fan Power
Power Supply Fan
Rotation
+12V
GND
Air Flow
Air Flow
R
Orientate the fins so that air flow
runs across motherboard's regulators.
12Volt Cooling Fan Power
28
ASUS TXP4-X User’s Manual
III. INSTALLATION
10. IrDA / Fast IR-Compliant infrared module connector (5-pin IR)
This connector supports the optional wireless transmitting and receiving infrared module. This module mounts to a small opening on system cases that support this feature. You must also configure the setting through “UART2 Use Infrared” in Chipset Features Setup to select whether UART2 is directed for use
with COM2 or IrDA. Use the five pins as shown on the Back View and connect
a ribbon cable from the module to the motherboard according to the pin definitions.
Front View
+5V
NC
R
IRTX
GND
III. INSTALLATION
(Connectors)
FIRRX
GND
Back View
+5V
IRRX
IRTX
IRRX
Infrared Module Connector
For the infrared feature to be available,
you must connect the optional Infrared
(IrDA) module to the motherboard
11. ATX Power Supply Connector (20-pin ATXPWR)
This connector connects to a ATX power supply. The plug from the power supply will only insert in one orientation because of the different hole sizes. Find
the proper orientation and push down firmly but gently making sure that the pins
are aligned.
IMPORTANT: Be sure that the ATX power supply can take at least 10mAmp
load on the 5volt standby lead (5VSB). You may experience difficulty in powering on your system without this.
R
12.0V
5VSB
PW-0K
GND
5.0V
GND
5.0V
GND
3.3V
3.3V
5.0V
5.0V
-5.0V
GND
GND
GND
PS-ON
GND
-12.0V
3.3V
ATX Power Connector
ASUS TXP4-X User’s Manual
29
III. INSTALLATION
12. Message LED Lead (MSG LED)
This indicates whether a message has been received from a fax/modem. The
LED will remain lit when there is no signal and blink when there is data transfer
or waiting in the inbox. This function requires OS and driver support.
III. INSTALLATION
(Connectors)
13. SMI Suspend Switch Lead (SMI)
This allows the user to manually place the system into a suspend mode or “Green”
mode where system activity will be instantly decreased to save electricity and
expand the life of certain components when the system is not in use. This 2-pin
connector (see the figure below) connects to the case-mounted suspend switch.
If you do not have a switch for the connector, you may use the “Turbo Switch”
since it does not have a function. SMI is activated when it detects a short to open
moment and therefore leaving it shorted will not cause any problems. May require one or two pushes depending on the position of the switch. Wake-up can
be controlled by settings in the BIOS but the keyboard will always allow wakeup (the SMI lead cannot wake-up the system). If you want to use this connector,
“Suspend Switch” in the Power Management Setup of the BIOS SOFTWARE
section should be on the default setting of Enable.
14. ATX Power Switch / Soft Power Switch (PWR SW)
The system power is controlled by a momentary switch connected to this lead.
Pushing the button once will switch the system between ON and SLEEP. Pushing the switch while in the ON mode for more than 4 seconds will turn the
system off. The system power LED shows the status of the system’s power.
15. Reset Switch Lead (RESET)
This 2-pin connector connects to the case-mounted reset switch for rebooting
your computer without having to turn off your power switch. This is a preferred
method of rebooting in order to prolong the life of the system’s power supply.
16. System Power LED (PWR LED)
This 3-pin connector connects the system power LED, which lights when the
system is powered on and blinks when it is in sleep mode.
17. Keyboard Lock Switch Lead (KEYLOCK)
This 2-pin connector connects to the case-mounted key switch to allow keyboard locking.
18. Speaker Connector (SPEAKER)
This 4-pin connector connects to the case-mounted speaker.
R
Message
LED
SMI Lead
ATX Power
Switch
Reset SW
+5V
GND
GND
GND
GND
+5V
NC
GND
LOCK
GND
System
Power LED
Keyboard Lock
+5V
GND
GND
SPKR
Speaker
Connector
System Panel Connections
30
ASUS TXP4-X User’s Manual
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ASUS TXP4-X User’s Manual
31
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32
ASUS TXP4-X User’s Manual
III. INSTALLATION
Power Connection Procedures
1. After all jumpers and connections are made, close the system case cover.
2. Be sure that all switches are off (in some systems, marked with ).
3. Connect the power supply cord into the power supply located on the back of
your system case according to your system user’s manual.
4. Connect the power cord into a power outlet that is equipped with a surge protector.
III. INSTALLATION
(Power Connections)
5. You may then turn on your devices in the following order:
a.
Your monitor
b.
External SCSI devices (starting with the last device on the chain)
c.
Your system power. For ATX power supplies, you need to switch
on the power supply as well as press the ATX power switch on the
front of the case.
6. The power LED on the front panel of the system case will light. For ATX power
supplies, the system LED will light when the ATX power switch is pressed. The
monitor LED may light up after the system’s if it complies with “green” standards or if it has a power standby feature. The system will then run power-on
tests. While the tests are running, additional messages will appear on the screen.
If you do not see anything within 30 seconds from the time you turn on the
power, the system may have failed a power-on test. Recheck your jumper settings and connections or call your retailer for assistance.
7. During power-on, hold down <Delete> to enter BIOS setup. Follow the instructions in the next section, BIOS SOFTWARE.
* Powering Off your computer: You must first exit or shut down your operating
system before switching off the power switch. For ATX power supplies, you can
press the ATX power switch after exiting or shutting down your operating system. If you use Windows 95, click the Start button, click Shut Down, and then
click Shut down the computer?. The system will give three quick beeps after
about 30 seconds and then power off after Windows shuts down.
NOTE: The message “You can now safely turn off your computer” will not
appear when shutting down with ATX power supplies.
ASUS TXP4-X User’s Manual
33
IV. BIOS SOFTWARE
Support Software
FILELIST.TXT - View this file to see the files included in the support software.
PFLASH.EXE - This is the Flash Memory Writer utility that updates the BIOS by
uploading a new BIOS file to the programmable flash ROM chip on the motherboard. To determine the BIOS version, check the last four numbers of the code
displayed on the upper left-hand corner of your screen during bootup. Larger numbers represent a newer BIOS file.
NOTE: A binary BIOS file is no longer included with the support software. Save
the motherboard’s BIOS file to a floppy disk as soon as your system is operational.
See “Flash Memory Writer Utility” in this section to “Save Current BIOS to File.”
Flash Memory Writer Utility
The flash memory writer utility must be run while the system is in real mode. In
particular, the “Update BIOS Main Block From File” and “Update BIOS Including
Boot Block and ESCD” options require real mode. To run this utility, boot from a
system floppy disk without the AUTOEXEC.BAT and CONFIG.SYS files.
ASUSTeK PNP BIOS
FLASH MEMORY WRITER V1.5
Copyright (C) 1995, ASUSTeK COMPUTER Inc.
IV. BIOS
(Flash Memory Writer)
Flash Type -- SST 29EE010
Current BIOS Revision: #401A0-xxxx
Choose one of the following:
1. Save Current BIOS To File
2. Update BIOS Main Block From File
3. Advanced Features
Enter Choice: [1]
Press ESC To Exit
xxxx denotes the current BIOS version stored in the Flash EPROM
IMPORTANT: If “unknown” is displayed after Flash Type -- , the memory chip is
not programmable or is not supported with the PnP BIOS and therefore cannot be
programmed by the Flash Memory Writer utility.
34
ASUS TXP4-X User’s Manual
IV. BIOS SOFTWARE
Main Menu
1. Save Current BIOS To File
This option allows you to copy the contents of the flash memory onto a floppy disk.
This gives you a backup copy of the original motherboard BIOS in case you need to
reinstall it. Create a bootable DOS diskette without AUTOEXEC.BAT and
CONFIG.SYS and save both PFLASH.EXE and the BIOS file(s) to it. Note: BIOS
FEATURES SETUP Boot Sequence needs to be set to A first in order to boot from
your disk drive A.
2. Update BIOS Main Block From File
This option updates the BIOS from a file on the disk. The file can be either a new file
or a backup file created by the “Save Current BIOS To File” option. If the boot block
in the file is different from the current boot block, this option will not update the
main block. Instead, it will display the following messages.
Boot Block of New BIOS is different from old one !!!
Please Use 'Advanced Features' to flash whole BIOS !!!
3. Advanced Features
This option displays the Advanced Features screen for clearing the PnP configuration record and updating the motherboard BIOS.
IV. BIOS
(Flash Memory Writer)
Advanced Features Menu
Advanced Features
Flash Type -- SST 29EE010
Current BIOS Revision: #401A0-xxxx
Choose one of the following:
1. Clear PNP ESCD Parameter Block
2. Update BIOS Including Boot Block and ESCD
Enter Choice: [2]
Press ESC To Exit
xxxx denotes the current BIOS version stored in the Flash EPROM
1. Clear PNP ESCD Parameter Block
This option erases the Plug-and-Play (PnP) configuration record.
2. Update BIOS Including Boot Block and ESCD
This option updates the boot block, the baseboard BIOS, and the PnP extended system configuration data (ESCD) parameter block from a new BIOS file.
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IV. BIOS SOFTWARE
Managing and Updating Your Motherboard’s BIOS
Upon First Use of the Computer System
1. Create a bootable system floppy diskette by typing [FORMAT A:/S] from the
DOS prompt without creating “AUTOEXEC.BAT” and “CONFIG.SYS” files.
2. Copy PFLASH.EXE to your new diskette.
3. Run PFLASH.EXE from your new diskette and select option 1 “Save Current
BIOS to File.” Enter the “Current BIOS Revision:” for the file name.
Updating BIOS Procedures (only when necessary)
IMPORTANT: If “unknown” is displayed after Flash Type -- , the memory chip is
not programmable or is not supported with the PnP BIOS and therefore cannot be
programmed by the Flash Memory Writer utility.
IV. BIOS
(Flash Memory Writer)
1. Download an updated ASUS BIOS file from the Internet (WWW or FTP) or a
BBS (Bulletin Board Service) (see ASUS CONTACT INFORMATION on page
3 for details) and save to the disk you created earlier.
2. Turn off your computer. On systems with the “Boot Block Programming” jumper,
open the system cabinet to set this jumper to Programmable.
3. Boot from the disk you created earlier.
4. At the “A:\” prompt, type PFLASH and then press <Enter>.
5. Enter 2 “Update BIOS Main Block From File” from the Main Menu or option 2
“Update BIOS Including Boot Block and ESCD” from the Advanced Features
Menu if prompted by option 2 of the Main Menu.
6. The program displays a second screen prompting you for the name of the BIOS
file. Type in the complete file name and extension of the new BIOS, and then
press <Enter>. The utility then updates the BIOS file from disk.
WARNING! If you encounter problems while updating the new BIOS, DO NOT
turn off your system since this might prevent your system from booting up. Just
repeat the process, and if the problem still persists, update the original BIOS file
you saved to disk above. If the Flash Memory Writer utility was not able to
successfully update a complete BIOS file, your system may not be able to boot
up. If this happens, your system will need service.
7. After successfully updating the new BIOS file, exit the Flash Memory Writer
utility and then turn off your system. On systems with the “Boot Block Programming” jumper, set the jumper back to its default setting of Write Protect.
8. Turn on your computer and press <Delete> to enter BIOS setup. You must select
“Setup Default” to effect the new BIOS, after which you may set the other items
from the Main Menu.
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IV. BIOS SOFTWARE
6. BIOS Setup
The motherboard supports two programmable Flash ROM chips: 5 Volt and 12 Volt.
Either of these memory chips can be updated when BIOS upgrades are released. Use
the Flash Memory Writer utility to download the new BIOS file into the ROM chip
as described in detail in this section.
All computer motherboards provide a Setup utility program for specifying the system configuration and settings. If your motherboard came in a computer system, the
proper configuration entries may have already been made. If so, invoke the Setup
utility, as described later, and take note of the configuration settings for future reference; in particular, the hard disk specifications.
If you are installing the motherboard, reconfiguring your system or you receive a
Run Setup message, you will need to enter new setup information. This section
describes how to configure your system using this utility.
IV. BIOS
(BIOS Setup)
The BIOS ROM of the system stores the Setup utility. When you turn on the computer, the system provides you with the opportunity to run this program. This appears during the Power-On Self Test (POST). Press <Delete> to call up the Setup
utility. If you are a little bit late pressing the mentioned key(s), POST will continue
with its test routines, thus preventing you from calling up Setup. If you still need to
call Setup, reset the system by pressing <Ctrl> + <Alt> + <Delete>, or by pressing
the Reset button on the system case. You can also restart by turning the system off
and then back on again. But do so only if the first two methods fail.
When you invoke Setup, the CMOS SETUP UTILITY main program screen will
appear with the following options:
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IV. BIOS SOFTWARE
Load Defaults
The Load BIOS Defaults option loads the minimum settings for troubleshooting.
Load Setup Defaults, on the other hand, is for loading optimized defaults for regular use. Choosing defaults at this level will modify all applicable settings.
A section at the bottom of the preceding screen displays the control keys for this
screen. Take note of these keys and their respective uses.
Standard CMOS Setup
Standard CMOS Setup allows you to record some basic system hardware configuration and set the system clock and error handling. If the motherboard is already
installed in a working system, you will not need to select this option anymore. However, if the configuration stored in the CMOS memory on the board gets lost or
damaged, or if you change your system hardware configuration, you will need to
respecify the configuration values. The configuration values usually get lost or corrupted when the power of the onboard CMOS battery weakens.
IV. BIOS
(Standard CMOS)
The preceding screen provides you with a list of options. At the bottom of this screen
are the control keys. Take note of these keys and their respective uses.
User-configurable fields appear in a different color. If you need information on the
selected field, press <F1>. The memory display at the lower right of the screen is readonly and automatically adjusts according to the memory installed in your system.
Details of Standard CMOS Setup:
Date
To set the date, highlight the “Date” field and then press either <Page Up>/<Page Down>
or <+>/<–> to set the current date. Follow the month, day and year format. Valid values
for month, day and year are: Month: (1 to 12), Day: (1 to 31), Year: (up to 2079)
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IV. BIOS SOFTWARE
Time
To set the time, highlight the “Time” field and then press either <Page Up>/<Page Down>
or <+>/<–> to set the current time. Follow the hour, minute and second format. Valid
values for hour, minute and second are: (Hour: (00 to 23), Minute: (00 to 59), Second:
(00 to 59). If you do not want to modify the current time, press <Enter> three times
to go to Hard Disks.
NOTE: You can bypass the date and time prompts by creating an AUTOEXEC.BAT
file. For information on how to create this file, refer to the MS-DOS manual.
Hard Disk Drives
This field records the specifications for all non-SCSI hard disk drives installed in
your system. The onboard PCI IDE connectors provide Primary and Secondary channels for connecting up to four IDE hard disks or other IDE devices. Each channel
can support up to two hard disks; the first of which is the “master” and the second is
the “slave”.
Specifications for SCSI hard disks need not to be entered here since they operate
using device drivers and are not supported by any the BIOS. If you install either the
optional PCI-SC200 or PCI-SC860 SCSI controller card into the motherboard, see
section VI for instructions. If you install other vendor’s SCSI controller card, refer
to their respective documentations on how to install the required SCSI drivers.
IV. BIOS
(Standard CMOS)
For IDE hard disk drive setup, you can:
• Use the Auto setting for detection during bootup.
• Use the IDE HDD AUTO DETECTION in the main menu to automatically
enter the drive specifications.
• Enter the specifications yourself manually by using the “User” option.
The entries for specifying the hard disk type include CYLS (number of cylinders),
HEAD (number of read/write heads), PRECOMP (write precompensation), LANDZ
(landing zone), SECTOR (number of sectors) and MODE. The SIZE field automatically adjusts according to the configuration you specify. The documentation
that comes with your hard disk should provide you with the information regarding
the drive specifications.
The MODE entry is for IDE hard disks only, and can be ignored for MFM and ESDI
drives. This entry provides three options: Normal, Large, LBA, or Auto (see below).
Set MODE to the Normal for IDE hard disk drives smaller than 528MB; set it to
LBA for drives over 528MB that support Logical Block Addressing (LBA) to allow
larger IDE hard disks; set it to Large for drives over 528MB that do not support
LBA. Large type of drive can only be used with MS-DOS and is very uncommon.
Most IDE drives over 528MB support the LBA mode.
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IV. BIOS SOFTWARE
Auto detection of hard disks on bootup
For each field: Primary Master, Primary Slave, Secondary Master, and Secondary
Slave, you can select Auto under the TYPE and MODE fields. This will enable auto
detection of your IDE hard disk during bootup. This will allow you to change your
hard disks (with the power off) and then power on without having to reconfigure
your hard disk type. If you use older hard disks that do not support this feature, then
you must configure the hard disk in the standard method as described earlier by the
“User” option.
NOTE: After the IDE hard disk drive information has been entered into BIOS, new
IDE hard disk drives must be partitioned (such as with FDISK) and then formatted
before data can be read from and write on. Primary IDE hard disk drives must have
its partition set to active (also possible with FDISK).
NOTE: SETUP Defaults are noted in parenthesis next to each function heading.
Drive A / Drive B (None)
These fields record the types of floppy disk drives installed in your system. The
available options for drives A and B are: 360KB, 5.25 in.; 1.2MB, 5.25 in.; 720KB,
3.5 in.; 1.44MB, 3.5 in.; 2.88MB, 3.5 in.; None
IV. BIOS
(Standard CMOS)
To enter the configuration value for a particular drive, highlight its corresponding
field and then select the drive type using the left- or right-arrow keys.
Floppy 3 Mode Support (Disabled)
This is the Japanese standard floppy drive. The standard stores 1.2MB in a 3.5inch
diskette. This is normally disabled but you may choose from either: Drive A, Drive
B, Both, and Disabled
Video (EGA/VGA)
Set this field to the type of video display card installed in your system. The options
are EGA/VGA, CGA 49, CGA 80, and Mono (for Hercules or MDA).
If you are using a VGA or any higher resolution card, choose EGA/VGA.
Halt On (All Errors)
This field determines which types of errors will cause the system to halt. Choose from
All Errors; No Errors; All,But Keyboard, All,But Diskette; and All,But Disk/Key.
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IV. BIOS SOFTWARE
BIOS Features Setup
BIOS Features Setup consists of configuration entries that allow you to improve
your system performance, or let you set up some system features according to your
preference. Some entries are required by the motherboard’s design to remain in their
default settings.
IV. BIOS
(BIOS Features)
A section at the lower right of the screen displays the control keys you can use. Take
note of these keys and their respective uses. If you need information on a particular
entry, highlight it and then press <F1>. A pop-up help menu will appear to provide
you with the information you need. <F5> loads the last set values, <F6> and <F7>
loads the BIOS default values and Setup default values, respectively.
NOTE: SETUP Defaults are noted in parenthesis next to each function heading.
Details of BIOS Features Setup
Virus Warning (Disabled)
This field protects the boot sector and partition table of your hard disk against accidental
modifications. Any attempt to write to them will cause the system to halt and display a
warning message. If this occurs, you can either allow the operation to continue or use a
bootable virus-free floppy disk to reboot and investigate your system. This setting is recommended because of conflicts with new operating systems or some programs. Installation of these programs requires that you disable Virus Warning to prevent write errors.
CPU Internal Cache (Enabled)
Choose Disable to turn off the CPU’s built-in level 1 cache.
External Cache (Enabled)
Choose Disable to turn off the CPU’s external level 2 cache.
Quick Power On Self Test (Enabled)
This field speeds up the Power-On Self Test (POST) routine by skipping retesting a
second, third, and fourth time. Setup default setting for this field is Enabled. A
complete test of the system is done on each test.
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IV. BIOS SOFTWARE
HDD Sequence SCSI/IDE First (IDE)
When using both SCSI and IDE hard disk drives, IDE is always the boot disk using
drive letter C (default setting of IDE). This new feature allows a SCSI hard disk
drive to be the boot disk when set to SCSI. This allows multiple operating systems to
be used on both IDE and SCSI drives or the primary operating system to boot using
a SCSI hard disk drive.
Boot Sequence (C,A)
This field determines where the system looks first for an operating system. Options are
C,A; A,CDROM,C; CDROM,C,A; D,A; E,A; F,A; A,C and C only; The setup default
setting is to check first the hard disk and then the floppy disk drive; that is, C, A.
Boot Up Floppy Seek (Disabled)
When enabled, the BIOS will seek drive A one time.
Floppy Disk Access Control (R/W)
This allows protection of files from the computer system to be copied to floppy disk
drives by allowing the setting of Read Only to only allow reads from the floppy disk
drive but not writes. The setup default R/W allows both reads and writes.
IDE HDD Block Mode Sectors (HDD MAX)
This field enhances hard disk performance by making multi-sector transfers instead
of one sector per transfer. Most IDE drives, except older versions, can utilize this
feature. Selections are HDD MAX, Disabled, 2, 4, 8, 16, and 32.
IV. BIOS
(BIOS Features)
Security Option (System)
This field determines when the system prompts for the password. The default setting is System, where the system prompts for the User Password every time you boot
up. The other option is Setup, where the system always boots up, and prompts for
the Supervisor Password only when the Setup utility is called up. You can specify a
password by using the Supervisor Password or User Password option from the main
screen as explained later in this section.
PS/2 Mouse Function Control (Auto)
The default of Auto allows the system to detect a PS/2 Mouse on bootup. If detected,
IRQ12 will be used for the PS/2 Mouse. If not detected, IRQ12 will be reserved for
expansion cards. Enabled will reserve IRQ12 for the PS/2 Mouse.
PCI/VGA Palette Snoop (Disabled)
Some display cards that are nonstandard VGA such as graphics accelerators or MPEG
Video Cards may not show colors properly. The setting Enabled should correct this
problem. Otherwise leave this on the setup default setting of Disabled.
OS/2 Onboard Memory > 64M (Disabled)
When using OS/2 operating systems with installed DRAM of greater than 64MB,
you need to Enable this option otherwise leave this on the setup default of Disabled.
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IV. BIOS SOFTWARE
Video ROM BIOS Shadow (Enabled)
This field allows you to change the video BIOS location from ROM to RAM. Relocating to RAM enhances system performance, as information access is faster than the ROM.
C8000 - CBFFF Shadow to DC000 - DFFFF Shadow (Disabled)
These fields are used for shadowing other expansion card ROMs. If you install other
expansion cards with ROMs on them, you will need to know which addresses the
ROMs use to shadow them specifically. Shadowing a ROM reduces the memory
available between 640KB and 1024KB by the amount used for this purpose.
......................................................................................................................................
Boot Up NumLock Status (On)
This field enables users to activate the Number Lock function upon system boot.
Boot Up System Speed (High)
This has no function and should be left on the setup default.
Typematic Rate Setting (Disabled)
When enabled, you can set the two typematic controls listed next. Setup default
setting is Disabled.
Typematic Rate (Chars/Sec) (6)
This field controls the speed at which the system registers repeated keystrokes. Options range from 6 to 30 characters per second. Setup default setting is 6; other
settings are 8, 10, 12, 15, 20, 24, and 30.
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IV. BIOS
(BIOS Features)
Typematic Delay (Msec) (250)
This field sets the time interval for displaying the first and second characters. Four
delay rate options are available: 250, 500, 750, and 1000.
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IV. BIOS SOFTWARE
Chipset Features Setup
This “Chipset Features Setup” option controls the configuration of the board’s chipset.
Control keys for this screen are the same as in the BIOS Features Setup screen.
NOTE: SETUP Defaults are noted in parenthesis next to each function heading.
Details of Chipset Features Setup
IV. BIOS
(Chipset Features)
Auto Configuration (60ns DRAM)
The default setting of 60ns DRAM sets the optimal timings for items 2 through 9 for
60ns DRAM modules. If you are using 70ns DRAM modules, you must change this
item to 70ns DRAM. See section III for DRAM installation information.
SDRAM CAS# Latency (3T)
If you use ASUS SDRAM DIMM modules, you can set this to 2T for better performance, otherwise leave on default or check with your vendor for DIMM specs.
SDRAM Speculative Read (Disabled)
If Enabled, the CPU will issue predict commands to access the DRAM, if a miss
occurs, the CPU will cancel this command. Some operating systems under certain
situations have a problem utilizing this feature so it is normally Disabled.
Passive Release (Enabled)
This is a mechanism that allows concurrency of ISA/EISA cycles and CPU-to-PCI
cycles. When this feature is enabled, the TXC will be possible to re-arbitrate PCI
bus and allow the CPU to access PCI even when the PCEB has been granted the bus.
Delayed Transaction (Disabled)
If Enabled, this frees the PCI Bus during CPU accessing of 8-bit ISA cards which
normally consume about 50-60 PCI Clocks without PCI delayed transaction. If PCI
Bus Masters cannot use the PCI Bus, leave this on the default setting of Disabled for
some ISA cards that are not PCI 2.1 compliant.
16-bit I/O Recovery Time (1 BUSCLK)
Timing for 16-bit ISA cards
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IV. BIOS SOFTWARE
8-bit I/O Recovery Time (1 BUSCLK)
Timing for 8-bit ISA cards
Video BIOS Cacheable (Enabled)
Allows the Video BIOS to be cached to allow faster execution. Leave on default
setting of Enabled for better performance, otherwise Disabled.
Memory Hole at Address (None)
This features reserves either 14MB-16MB or 15MB-16MB memory address space to
ISA expansion cards that specifically require this setting. Memory from 14MB and up
or 15MB and up will be unavailable to the system because expansion cards can only
access memory up to 16MB.
....................................................................................................................................
(BIOS Features)
Onboard FDC Controller (Enabled)
When enabled, this field allows you to connect your floppy disk drives to the onboard floppy drive connector instead of a separate controller card. If you want to use
a different controller card to connect the floppy drives, set this field to Disabled.
Onboard FDC Swap A: B:
This field allows you to reverse the hardware drive letter assignments of your floppy
disk drives. Two options are available: Swap AB and No Swap. If you want to switch
drive letter assignments, set this field to Swap AB, and the swap will be controlled
by the onboard chipset.
IV. BIOS
(Chipset Features)
Onboard Serial Port 1 (3F8H/IRQ4)
Settings are 3F8H/IRQ4, 2F8H/IRQ3, 3E8H/IRQ4, 2E8H/IRQ10, and Disabled for
the onboard serial connector.
Onboard Serial Port 2 (2F8H/IRQ3)
Settings are 3F8H/IRQ4, 2F8H/IRQ3, 3E8H/IRQ4, 2E8H/IRQ10, and Disabled for
the onboard serial connector.
Onboard Parallel Port (378H/IRQ7)
This field sets the address of the onboard parallel port connector. You can select either
3BCH / IRQ 7, 378H / IRQ 7, 278H / IRQ 5, or Disabled. If you install an I/O card with
a parallel port, ensure that there is no conflict in the address assignments. The PC can
support up to three parallel ports as long as there are no conflicts for each port.
Parallel Port Mode (ECP+EPP)
This field allows you to set the operation mode of the parallel port. The setting
Normal, allows normal-speed operation but in one direction only; EPP allows bidirectional parallel port operation at maximum speed; ECP allows the parallel port to
operate in bidirectional mode and at a speed faster than the maximum data transfer
rate; ECP+EPP allows normal speed operation in a two-way mode.
ECP DMA Select (3)
This selection is available only if you select ECP or ECP+EPP in the
Parallel Port Mode. Select either DMA Channel 1, 3, or Disabled.
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IV. BIOS SOFTWARE
UART2 Use Infrared (Disabled)
When enabled, this field activates the onboard infrared feature and sets the second
serial UART to support the infrared module connector on the motherboard. If your
system already has a second serial port connected to the onboard COM2 connector,
it will no longer work if you enable the infrared feature. By default, this field is set
to Disabled, which leaves the second serial port UART to support the COM2 serial
port connector.
Onboard PCI IDE Enable (Both)
You can select to enable the Primary IDE channel, Secondary IDE channel, Both, or
Disable both channels (for systems with only SCSI drives).
IDE Ultra DMA Mode (Auto)
This sets the IDE UltraDMA to be active when using UltraDMA-capable IDE devices. The BIOS will automatically adjust or disable this setting for slower IDE
devices so that Auto or high settings will not cause problems for older IDE devices.
Choose Disable if you do not want this feature for all devices.
(Chipset Features)
IDE 0 Master/Slave PIO/DMA Mode, IDE 1 Master/Slave PIO/DMA Mode (Auto)
Each channel (0 and 1) has both a master and a slave making four IDE devices possible.
Because each IDE device may have a different Mode timing (0, 1, 2, 3, 4), it is necessary
for these to be independent. PIO and DMA timings can be independently set. The default
setting of Auto will allow autodetection to ensure optimal performance.
IV. BIOS
(Chipset Features)
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IV. BIOS SOFTWARE
Power Management Setup
IV. BIOS
(Chipset Features)
This “Power Management Setup” option allows you to reduce power consumption.
This feature turns off the video display and shuts down the hard disk after a period
of inactivity.
NOTE: SETUP Defaults are noted in parenthesis next to each function heading.
Details of Power Management Setup
IV. BIOS
(Power Management)
Power Management (User Define)
This field acts as the master control for the power management modes. User Define
allows you to set power saving options according to your preference; Disable disables the power saving features; Min Saving puts the system into power saving mode
after 40 min of system inactivity; Max Saving puts the system into power saving
mode after 30 sec of system inactivity.
IMPORTANT: Advanced Power Management (APM) should be installed to
keep the system time updated when the computer enters suspend mode activated by the BIOS Power Management. For DOS environments, you need to
add DEVICE=C:\DOS\POWER.EXE in you CONFIG.SYS. For Windows 3.x
and Windows 95, you need to install Windows with the APM feature. A battery
and power cord icon labeled “Power” will appear in the “Control Panel.” Choose
“Advanced” in the Power Management Field.
Video Off Option (Susp,Stby -> Off )
This field determines when to activate the video off feature for monitor power
management. The settings are All Modes -> Off; Always On; Suspend -> Off; and
Susp,Stby -> Off .
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IV. BIOS SOFTWARE
Video Off Method (DPMS OFF)
This field defines the video off features. These options are available: DPMS OFF,
DPMS Reduce ON, Blank Screen, V/H SYNC+Blank, DPMS Standby, and DPMS Suspend. The DPMS (Display Power Management System) features allow the BIOS to
control the video display card if it supports the DPMS feature. Blank Screen only
blanks the screen (or monitors without power management or “green” features). If set
up in your system, your screen saver will not display with Blank Screen selected). V/H
SYNC+Blank blanks the screen and turns off vertical and horizontal scanning.
......................................................................................................................................
PM Timers
This section controls the time-out settings for the Power Management scheme. The
fields included in this section are HDD Power Down, which places the hard disk
into its lowest power consumption mode, and the Doze, Standby and Suspend system inactivation modes.
IV. BIOS
(Chipset Features)
The system automatically “wakes up” from any power saving mode when there is
system activity, such as when a key is pressed from the keyboard, or when there is
activity detected from the enabled IRQ channels.
HDD Power Down (Disable)
shuts down any IDE hard disk drives in the system after a period of inactivity. This
time period is user-configurable to 1-15 Mins or Disable. This feature does not affect SCSI hard disks.
IV. BIOS
(Power Management)
Doze Mode, Standby Mode, Suspend Mode (Disable)
These fields set the period of time after which each of these modes activate: 30 Sec,
1 Min, 2 Min, 4 Min, 8 Min, 20 Min, 30 Min, 40 Min, 1 Hour, and Disable.
.......................................................................................................................................
Power Up Control
This section determines the ways the system can be controlled when it is started or
restarted, when modem activity is detected, or when power to the computer is interrupted and reapplied. The Soft-Off mode refers to powering off the system through
a momentary button switch (ATX switch) or through the software as opposed to
disconnecting the AC power by way of a rocker switch or other means.
PWR Button < 4 Secs (Soft Off)
When set to Soft Off, the ATX switch can be used as a normal system power-off
button when pressed for less than 4 seconds. Suspend allows the button to have a
dual function where pressing less than 4 seconds will place the system in sleep
mode. No Function disables the ATX switch function when the button is pressed
under 4 seconds. Regardless of the setting, holding the ATX switch for more than 4
seconds will power off the system.
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IV. BIOS SOFTWARE
PWR Up On Modem Act (Enabled)
This allows either settings of Enabled or Disabled for powering up the computer
(turns the ATX power supply on) when the modem receives a call while the computer is off.
NOTE: The computer cannot receive or transmit data until the computer and applications are fully running, thus connection cannot be made on the first try. Turning an
external modem off and then back on while the computer is off causes an initialization string that will also cause the system to power on.
AC PWR Loss Restart (Disabled)
Allows you to set whether you want your system to boot up after the power has been
interrupted. Disabled leaves your system off after reapplying power and Enabled
boots up your system after replying power.
IV. BIOS
(Power Management)
Automatic Power Up (Disabled)
Allows you to have an unattended or automatic power up of your system. You may
configure your system to power up at a certain time of the day by selecting Everyday,
which will allow you to set the time or at a certain time and day by selecting By Date.
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IV. BIOS SOFTWARE
PNP and PCI Setup
This “PNP and PCI Setup” option configures the PCI bus slots. All PCI bus slots on
the system use INTA#, thus all installed PCI cards must be set to this value.
NOTE: SETUP Defaults are noted in parenthesis next to each function heading.
Details of PNP and PCI Setup
IV. BIOS
(PnP / PCI)
PNP OS Installed (No)
This field allows you to use a Plug-and-Play (PnP) operating system to configure
the PCI bus slots instead of using the BIOS. Thus interrupts may be reassigned by
the OS when Yes is selected. When a non-PnP OS is installed or to prevent reassigning of interrupt settings, select the default setting of No.
Slot 1 (RIGHT) IRQ to Slot 4 (LEFT) IRQ (Auto)
These fields set how IRQ use is determined for each PCI slot. The default setting for
each field is Auto, which uses auto-routing to determine IRQ use. The other options are
manual settings of NA, 5, 7, 9, 10, 11, 12, 14 or 15 for each slot.
PCI Latency Timer (32 PCI Clock)
The default setting of 32 PCI Clock enables maximum PCI performance for this
motherboard.
IRQ xx Used By ISA (No/ICU)
These fields indicate whether or not the displayed IRQ for each field is being used
by a legacy (non-PnP) ISA card. Two options are available: No/ICU and Yes. The
first option, the default value, indicates either that the displayed IRQ is not used or
an ISA Configuration Utility (ICU) is being used to determine if an ISA card is
using that IRQ. If you install a legacy ISA card that requires a unique IRQ, and you
are not using an ICU, you must set the field for that IRQ to Yes. For example: If you
install a legacy ISA card that requires IRQ 10, then set IRQ10 Used By ISA to Yes.
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IV. BIOS SOFTWARE
DMA x Used By ISA (No/ICU)
These fields indicate whether or not the displayed DMA channel for each field is
being used by a legacy (non-PnP) ISA card. Available options include: No/ICU and
Yes. The first option, the default setting, indicates either that the displayed DMA
channel is not used or an ICU is being used to determine if an ISA card is using that
channel. If you install a legacy ISA card that requires a unique DMA channel, and
you are not using an ICU, you must set the field for that channel to Yes.
(Power Management)
ISA MEM Block BASE (No/ICU)
This field allows you to set the base address and block size of a legacy ISA card that
uses any memory segment within the C800H and DFFFH address range. If you have
such a card, and you are not using an ICU to specify its address range, select a base
address from the six available options; the ISA MEM Block SIZE field will then
appear for selecting the block size. If you have more than one legacy ISA card in
your system that requires to use this address range, you can increase the block size
to either 8K, 16K, 36K, or 64K. If you are using an ICU to accomplish this task,
leave ISA MEM Block BASE to its default setting of No/ICU.
IV. BIOS
(PnP / PCI)
SYMBIOS SCSI BIOS (Auto)
The default uses Auto settings for the onboard SCSI BIOS. If you do not want to use
the onboard SCSI BIOS, choose Disabled.
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IV. BIOS SOFTWARE
Load BIOS Defaults
This “Load BIOS Defaults” option allows you to load the troubleshooting default
values permanently stored in the BIOS ROM. These default settings are non-optimal and disable all high performance features. To load these default settings, highlight “Load BIOS Defaults” on the main screen and then press <Enter>. The system
displays a confirmation message on the screen. Press <Y> and then <Enter> to confirm. Press <N> and then <Enter> to abort. This feature does not affect the fields on
the Standard CMOS Setup screen.
Load Setup Defaults
This “Load Setup Defaults” option allows you to load the default values to the system configuration fields. These default values are the optimized configuration settings for the system. To load these default values, highlight “Load Setup Defaults”
on the main screen and then press <Enter>. The system displays a confirmation
message on the screen. Press <Y> and then <Enter> to confirm. Press <N> and then
<Enter> to abort. This feature does not affect the fields on the Standard CMOS
Setup screen.
IV. BIOS
(Load Defaults)
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IV. BIOS SOFTWARE
Supervisor Password and User Password
IV. BIOS
(Passwords)
These two options set the system passwords. “Supervisor Password” sets a password that will be used to protect the system and the Setup utility; “User Password”
sets a password that will be used exclusively on the system. By default, the system
comes without any passwords. To specify a password, highlight the type you want
and then press <Enter>. A password prompt appears on the screen. Taking note that
the password is case sensitive, and can be up to 8 alphanumeric characters long, type
your password and then press <Enter>. The system confirms your password by asking you to type it again. After setting a password, the screen automatically reverts to
the main screen.
To implement password protection, specify in the “Security Option” field of the
BIOS Features Setup screen when the system will prompt for the password. If you
want to disable either password, press <Enter> instead of entering a new password
when the “Enter Password” prompt appears. A message confirms the password has
been disabled.
NOTE: If you forget the password, see CMOS RAM in section III for procedures
on clearing the CMOS.
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IV. BIOS SOFTWARE
IDE HDD Auto Detection
This “IDE HDD Auto Detection” option detects the parameters of an IDE hard disk
drive, and automatically enters them into the Standard CMOS Setup screen.
IV. BIOS
(Hard Disk Detect)
Up to four IDE drives can be detected, with parameters for each listed inside the
box. To accept the optimal entries, press <Y> or else select from the numbers displayed under the OPTIONS field (2, 1, 3 in this case); to skip to the next drive, press
<N>. If you accept the values, the parameters will appear listed beside the drive
letter on the screen. The process then proceeds to the next drive letter. Pressing <N>
to skip rather than to accept a set of parameters causes the program to enter zeros
after that drive letter.
Remember that if you are using another IDE controller that does not feature Enhanced IDE support for four devices, you can only install two IDE hard disk drives.
Your IDE controller must support the Enhanced IDE features in order to use Drive E
and Drive F. The onboard PCI IDE controller supports Enhanced IDE, with two
connectors for connecting up to four IDE devices. If you want to use another controller that supports four drives, you must disable the onboard IDE controller in the
Chipset Features Setup screen.
When autodetection is completed, the program automatically enters all entries you
accepted on the field for that drive in the Standard CMOS Setup screen. Skipped
entries are ignored and are not entered in the screen.
If you are autodetecting a hard disk that supports the LBA mode, three lines will
appear in the parameter box. Choose the line that lists LBA for an LBA drive. Do not
select Large or Normal.
The auto-detection feature can only detect one set of parameters for a particular IDE
hard drive. Some IDE drives can use more than one set. This is not a problem if the
drive is new and empty.
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IV. BIOS SOFTWARE
IMPORTANT: If your hard disk was already formatted on an older previous system,
incorrect parameters may be detected. You will need to enter the correct parameters
manually or use low-level format if you do not need the data stored on the hard disk.
If the parameters listed differ from the ones used when the disk was formatted, the
disk will not be readable. If the auto-detected parameters do not match the ones that
should be used for your disk, do not accept them. Press <N> to reject the presented
settings and enter the correct ones manually from the Standard CMOS Setup screen.
Save & Exit Setup
IV. BIOS
(Save & Exit)
IV. BIOS
(Load Setup Defaults)
Select this option to save into the CMOS memory all modifications you specified
during the current session. To save the configuration changes, highlight the “Save &
Exit Setup” option on the main screen, type “Y”, and then press <Enter>.
Exit Without Saving
Select this option to exit the Setup utility without saving the modifications you specify
during the current session. To exit without saving, highlight the “Exit Without Saving” option on the main screen and then press <Enter>.
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V. SUPPORT SOFTWARE
Desktop Management Interface (DMI)
Introducing the ASUS DMI Configuration Utility
This motherboard supports DMI within the BIOS level and provides a DMI Configuration Utility to maintain the Management Information Format Database (MIFD).
DMI is able to auto-detect and record information pertinent to a computer’s system
such as the CPU type, CPU speed, and internal/external frequencies, and memory
size. The onboard BIOS will detect as many system information as possible and
store those collected information in a 4KB block in the motherboard’s Flash EPROM
and allow the DMI to retrieve data from this database. Unlike other BIOS software,
the BIOS on this motherboard uses the same technology implemented for Plug and
Play to allow dynamic real-time updating of DMI information versus creating a new
BIOS image file and requiring the user to update the whole BIOS. This DMI Configuration Utility also allows the system integrator or end user to add additional
information into the MIFD such as serial numbers, housing configurations, and vendor information. Those information not detected by the motherboard BIOS and has
to be manually entered through the DMI Configuration Utility and updated into the
MIFD. This DMI Configuration Utility provides the same reliability as PnP updating and will prevent the refreshing failures associated with updating the entire BIOS.
System Requirements
V. SOFTWARE
(DMI Introduction)
The DMI Configuration Utility (DMICFG.EXE) must be used in real mode in order
for the program to run, the base memory must be at least 180K. Memory managers
like HIMEM.SYS (required by windows) must not be installed. You can boot up
from a system diskette without AUTOEXEC.BAT and CONFIG.SYS files, “REM”
HIMEM.SYS in the CONFIG.SYS, or press <F5> during bootup to bypass your
AUTOEXEC.BAT and CONFIG.SYS files.
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V. SUPPORT SOFTWARE
Using the ASUS DMI Configuration Utility
Edit DMI (or delete)
Use the ←→ (left-right) cursors to move the top menu items and the ↑↓ (up-down)
cursor to move between the left hand menu items. The bottom of the screen will
show the available keys for each screen. Press enter at the menu item to enter the
right hand screen for editing. “Edit component” appears on top. The reversed color
field is the current cursor position and the blue text are available for editing. The
orange text shows auto-detected information and are not available for editing. The
blue text “Press [ENTER] for detail” contains a second pop-up menu is available,
use the + - (plus-minus) keys to change the settings. Enter to exit and save, ESC to
exit and not save.
V. SOFTWARE
(Using DMI Utility)
If the user has made changes, ESC will prompt you to answer Y or N. Enter Y to go
back to the left-hand screen and save, enter N to go back to left-hand screen and not
save. If editing has not been made, ESC will send you back to the left hand menu
without any messages.
Notes
A heading, *** BIOS Auto Detect ***, appears on the right for each menu item on the
left side that has been auto detected by the system BIOS.
A heading, *** User Modified ***, will appear on the right for menu items that have
been modified by the user.
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V. SUPPORT SOFTWARE
Save MIFD
You can save the MIFD (normally only saved to flash ROM) to a file by entering the
drive and path here. If you want to cancel save, you may press ESC and a message
“Bad File Name” appears here to show it was not saved.
Load MIFD
You can load the disk file to memory by entering a drive and path and file name
here.
Load BIOS Defaults
V. SOFTWARE
(Using DMI Utility)
You can load the BIOS defaults from a MIFD file and can clear all user modified
and added data. You must reboot your computer in order for the defaults to be saved
back into the Flash BIOS.
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VI. ASUS PCI SCSI Cards
VI. ASUS SCSI Cards
(SCSI BIOS)
Symbios SCSI BIOS and Drivers
Aside from the system BIOS, the Flash memory chip on the motherboard also contains the Symbios SCSI BIOS. This Symbios SCSI BIOS works in conjunction with
the optional ASUS PCI-SC200 controller card to provide Fast SCSI-2 interface when
using compatible SCSI devices or the ASUS PCI-SC860 SCSI controller cards to
provide Ultra-Fast SCSI-2 interface when using Ultra-Fast SCSI-2 devices.
All SCSI devices you install on your system require driver software to function.
The Symbios SCSI BIOS directly supports SCSI hard disks under the DOS, Windows and OS/2 environments. It also uses device drivers from the DOS floppy disk
included in the ASUS PCI-SC200 and ASUS PCI-SC860 controller card packages
to support hard disks and other SCSI devices working under DOS, Microsoft Windows, Microsoft Windows NT, Novell NetWare and IBM OS/2. These drivers provide higher performance than the direct BIOS support. To use these drivers, you
must install them into your system and add them to your system configuration files.
Driver support for SCSI devices used with SCO UNIX is also provided. These
drivers are included in the second SCO UNIX floppy disk. Windows 95 support is
also available using the device drivers included within the Windows software. The
ASUS PCI-SC200 and ASUS PCI-SC860 are Plug and Play adapters that are auto
detected by BIOS and current operating systems that support Plug and Play features.
For information about these drivers and their usage, view the Readme files included
in the driver packages.
ASUS PCI-SC200 & PCI-SC860 SCSI Cards
The ASUS PCI-SC200 or the ASUS PCI-SC860 may be bundled with your motherboard or purchased separately. Both cards provide the option of connecting internal
or external SCSI devices for a total of 7 devices on each SCSI card.
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VI. ASUS PCI SCSI Cards
VI. ASUS SCSI Cards
(Setup)
Setting Up the ASUS PCI-SC200 & PCI-SC860
There are two jumper settings you may need to make on the ASUS PCI-SC200 to set
it up. One setting assigns the PCI INT interrupt, the other sets the card’s termination.
The ASUS PCI-SC860 has no jumper settings but you should read the “Terminator
Requirements.”
Setting the INT Assignment for the ASUS PCI-SC200
You must use PCI INT A setting in order to properly assign the ASUS PCI-SC200’s
interrupt. On the ASUS PCI-SC200, you assign the INT by setting jumper JP1 or
JP2. The default setting for the card already is INT A, so you do not need to change
the setting to use the ASUS PCI-SC200 with this motherboard.
JPJP
1 2
JPJP
1 2
1
2
3
JPJP
1 2
1
2
3
INT A (Def) INT B
JPJP
1 2
1
2
3
INT C
1
2
3
INT D
Interrupt Settings (A, B, C, or D)
Terminator Requirements for SCSI Devices
SCSI devices are connected together in a “chain” by cables. Internal devices connect to the ASUS PCI-SC200 or ASUS PCI-SC860 with a fifty-pin flat ribbon cable.
External devices connect to the external port with a SCSI-2 cable. If there are more
than one internal or external devices, additional devices are connected with cables
to form a “daisy chain.” Terminating the devices on the ends of the SCSI Bus “chain”
is necessary for SCSI devices to work properly. Termination of the devices between
the ends must be Disabled.
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VI. ASUS PCI SCSI Cards
VI. ASUS SCSI Cards
(Jumpers)
Terminator Settings for the ASUS PCI-SC860
Many SCSI devices including the ASUS PCI-SC860 use a set of onboard active
resistors to terminate the devices at the ends automatically. Automatic termination
requires that the SCSI devices be connected in a straight linear connection or “chain.”
Connect SCSI devices to one or two of the SCSI connectors in a linear “chain” for
auto termination of the ASUS PCI-SC860 to be effective. Other formations will
cause your SCSI devices to not mount properly. You must use the end of the ribbon
cable when using the internal connector(s) to keep a linear path.
Additional Note: The Symbios Logic SCSI Configuration Utility is a powerful
tool. If, while using it, you somehow disable all your controllers or cannot enter
the configuration utility, pressing Ctrl-A after memory count during reboot
allows you to recover and reconfigure.
Terminator Settings for the ASUS PCI-SC200
The ASUS PCI-SC200, on the other hand, has “active” termination that you must
set using jumper JP5. There are two settings, “terminated” and “not terminated,” as
shown below.
JP
5
Terminated (Default)
JP
5
Not Terminated
Terminator Setting (Terminated / Not Terminated)
Decide whether or not you need to terminate the ASUS PCI-SC200 based on its
position in the SCSI chain. Only the devices at each end of the chain need to be
terminated. If you have only internal or only external devices connected to the
ASUS PCI-SC200, then you must terminate the ASUS PCI-SC200. If you have
both internal and external devices connected, you must not terminate the card. See
the following example which illustrates this concept.
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VI. ASUS PCI SCSI Cards
VI. ASUS SCSI Cards
(SCSI ID Numbers)
SCSI Device 1
SCSI Device 2
Termination Required
(End Device)
Termination Required
(JP5 Open)
SCSI Device 3
SCSI Device 4
Termination Required
(End Device)
No Termination Required
(JP5 Short)
Termination Required
(End Device)
SCSI Device 2
SCSI Device 1
SCSI ID Numbers for SCSI Devices
All SCSI devices, including the ASUS PCI-SC200 and ASUS PCI-SC860 interface
card must have a SCSI identification number that is not in use by any other SCSI
device. There are eight possible ID numbers, 0 through 7. The ASUS PCI-SC200 and
ASUS PCI-SC860 cards have fixed SCSI IDs of 7. The SCSI ID serves two purposes:
•
•
It uniquely defines each SCSI device on the bus.
It determines which device controls the bus when two or more devices try to use
it at the same time.
SCSI IDs on one channel do not interfere with the IDs on another channel. This applies to two SCSI host adapters that implement different buses as well as dual channels
on a single host adapter. You can connect up to seven SCSI devices to the interface
card. You must set a SCSI ID number (ID 0 to ID 6) for each device. SCSI devices
vary in how they set the ID number. Some use jumpers, others have some kind of
selector switch. Refer to the manual for any device you install for details on how to set
its ID number.
SCSI ID Priority
The ASUS PCI-SC200 and ASUS PCI-SC860 are 8bit single-channel SCSI cards.
SCSI ID 7 has the highest priority, and SCSI ID 0 has the lowest priority.
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