R
TXP4
®
Pentium Motherboard
USER’S MANUAL
CONTACT INFORMATION
ASUSTeK COMPUTER INC.
Marketing Info:
Address: 150 Li-Te Road, Peitou, Taipei, Taiwan 112, ROC
Telephone: +886-2-894-3447
Fax:
Email:
+886-2-894-3449
Technical Support:
Fax:
+886-2-895-9254
BBS:
Email:
WWW:
+886-2-896-4667
Gopher: gopher.asus.com.tw
FTP:
ftp.asus.com.tw/pub/ASUS
ASUS COMPUTER INTERNATIONAL
Marketing Info:
Address: 721 Charcot Avenue, San Jose, CA 95131, USA
Telephone: +1-408-474-0567
Fax:
+1-408-474-0568
Email:
Technical Support:
BBS:
+1-408-474-0555
Email:
ASUS COMPUTER GmbH
Marketing Info:
Address: Harkort Str. 25, 40880 Ratingen, BRD, Germany
Telephone: 49-2102-445011
Fax:
49-2102-442066
Email:
Technical Support:
BBS:
49-2102-448690
Email:
Hotline: 49-2102-499712
ASUS TXP4 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 Motherboard ...................................... 8
Introduction to ASUS TXP4 Series of Motherboards ................ 9
The ASUS TXP4 Motherboard ........................................................ 11
III. INSTALLATION .......................................................................... 12
ASUS TXP4 Motherboard Layout .................................................. 12
Installation Steps .............................................................................. 14
1. Jumpers ........................................................................................ 14
Jumper Settings .................................................................... 15
Compatible Cyrix CPU Identification .................................. 16
2. System Memory (SIMM & DIMM) ............................................ 18
SIMM Installation ................................................................ 19
DIMM Installation ................................................................ 20
3. Central Processing Unit (CPU) .................................................... 21
4. Expansion Cards .......................................................................... 22
Expansion Card Installation Procedure ................................ 22
Assigning IRQs for Expansion Cards................................... 22
Assigning DMA Channels for ISA Cards............................. 23
5. External Connectors..................................................................... 24
Power Connection Procedures ................................................... 31
IV. BIOS SOFTWARE ....................................................................... 32
Support Software ............................................................................. 32
Flash Memory Writer Utility ........................................................... 32
Main Menu ........................................................................... 32
Advanced Feature Menu....................................................... 33
Managing and Updating Your Motherboard’s BIOS.................. 34
6. BIOS Setup ................................................................................. 35
Load Defaults ....................................................................... 36
Standard CMOS Setup ............................................................... 36
Details of Standard CMOS Setup:........................................ 37
BIOS Features Setup .................................................................. 39
Details of BIOS Features Setup............................................ 39
4
ASUS TXP4 User’s Manual
CONTENTS
Chipset Features Setup ............................................................... 41
Details of Chipset Features Setup......................................... 41
Power Management Setup.......................................................... 44
Details of Power Management Setup ................................... 44
PNP and PCI Setup .................................................................... 46
Details of PNP and PCI Setup .............................................. 46
Load BIOS Defaults ................................................................... 48
Load Setup Defaults ................................................................... 48
Supervisor Password and User Password .................................. 49
IDE HDD Auto Detection .......................................................... 50
Save and Exit Setup ................................................................... 51
Exit Without Saving ................................................................... 51
V. SUPPORT SOFTWARE ................................................................ 52
Desktop Management Interface (DMI)............................................ 52
Introducing the ASUS DMI Configuration Utility ............... 52
System Requirements ........................................................... 52
Using the ASUS DMI Configuration Utility ........................ 53
Notes ..................................................................................... 53
VI. ASUS PCI SCSI Cards ................................................................ 55
Symbios SCSI BIOS and Drivers .................................................... 55
ASUS PCI-SC200 & PCI-SC860 SCSI Cards ................................ 55
Setting Up the ASUS PCI-SC200 & PCI-SC860....................... 56
Setting the INT Assignment for the ASUS PCI-SC200 ............. 56
Terminator Requirements for SCSI Devices .............................. 56
Terminator Settings for the ASUS PCI-SC860 .......................... 57
Terminator Settings for the ASUS PCI-SC200 .......................... 57
SCSI ID Numbers for SCSI Devices ......................................... 58
SCSI ID Priority ......................................................................... 58
VII. ASUS I-A16C Audio Card ......................................................... 59
ASUS I-A16C Audio Features ................................................... 59
Unpacking and Handling Precautions ........................................ 59
Layout and Connectors .............................................................. 60
Connectors ............................................................................ 60
CD-Audio Connector Pin Definitions ........................................ 60
ASUS TXP4 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 installa-
tion. 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 interfer-
ence 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 graph-
ics card is required to assure compliance with FCC regulations. Changes or modifi-
cations 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 User’s Manual
I. INTRODUCTION
How this Manual is Organized
I. Introduction
Contents and checklist
II. Features
III. Installation
IV. BIOS Software
V. Support Software
VI. ASUS SCSI Card
VII.ASUS I-A16C Audio Card
Product information and specifications
Instructions on setting up the motherboard
Instructions on setting up the BIOS software
Information on the included support software
Installation of an optional ASUS SCSI card
Installation of an optional 16-bit audio card
Item Checklist
Check that your package is complete. If you discover damaged or missing items,
contact your retailer.
þ
þ
þ
þ
þ
þ
ASUS TXP4 motherboard
2 serial port ribbon cables with mounting brackets
1 parallel ribbon cable with mounting bracket
1 IDE ribbon cable
1 floppy disk ribbon cable
ASUS TXP4 Support Disc
• Flash Memory Writer utility to update the FLASH BIOS
• Desktop Management Interface (DMI) utility
• Audio drivers and utilities (included with ASUS I-A16C audio bundle)
• Readme files for descriptions and use of the files
• Technical Support Form
þ
¨
¨
¨
User’s Manual (Audio section included with ASUS I-A16C audio bundle)
USB, PS/2 mouse, and IR cable with mounting bracket set (optional)
ASUS PCI-SC200 Fast-SCSI or PCI-SC860 Ultra-Fast SCSI card (optional)
ASUS I-A16C audio card (optional)
ASUS TXP4 User’s Manual
7
II. FEATURES
Features of the ASUS TXP4 Motherboard
TheASUS TXP4 motherboard is carefully designed for the demanding PC user who
wants many features in a small package, namely:
•
•
Intel Chipset: Features Intel’s 430HX 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 & above), AMD-K5™ (PR75–PR133), AMD-K6™ (PR166–PR233).
•
•
Versatile Memory Support: Equipped with two DIMM sockets to support 8–
128MB 168-pin 3.3-Volt SDRAM/EDO memory modules up to 256MB or 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: Incorporates BIOS that supports autodetection of hard disk
drives, PS/2 mouse, and Plug and Play devices to make setup of hard disk drives,
expansion cards, and other devices virtually automatic.
•
•
•
Dual Power Supply: Includes both AT and ATX power connectors onboard to
support an AT or ATX power supply with soft-on/soft-off features.
ISA and PCI Expansion Slots: Provides two 16-bit ISA slots, three 32-bit PCI
slots, and one PCI/ISA shared slot for either a PCI or ISA card.
Super Multi-I/O: Provides two high-speed UART-compatible serial ports and
one parallel port with EPP and ECP capabilities. Includes integrated keyboard
controller. Supports two of either 5.25- or 3.5-inch disk drives (1.44MB or
2.88MB) without an external card. Supports Japanese standard “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).
•
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 Ultra DMA/33 Bus
Master IDE controller with two connectors. Supports four IDE devices more
than 8.4GB in two channels up to 33MB/sec IDE transfers and Enhanced IDE
devices. Also supports PIO Modes 3 and 4 and Bus Master IDE DMA Mode 2.
BIOS supports IDE CD-ROM or SCSI device bootup.
•
•
Level 2 Cache: Comes with onboard 512K Pipelined Burst SRAM.
Optional PS/2 Mouse, USB, IrDA Connector: Supports an optional cable and
bracket set to connect it to an unused expansion slot on the system chassis. A
second IrDA connector is available for a standard infrared cable set.
•
Symbios SCSI BIOS: Supports optional ASUS SCSI controller card through
onboard firmware.
•
•
Audio Ready: Supports optional onboard Creative Labs® Audio with 3D sound.
Optional IrDA Connector: Supports an optional infrared port module for wire-
less interface.
8
ASUS TXP4 User’s Manual
II. FEATURES
Introduction to ASUS TXP4 Series of Motherboards
Performance
•
SDRAM Optimized Performance: The ASUS TXP4 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.
•
Double the IDE Transfer Speed: ASUS TXP4 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. This new technology is
compatible with existing ATA-2 IDE specifications so there is no need to up-
grade current hard disk drives or cables.
•
Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI mas-
ter busses to memory to CPU.
•
ACPI Ready:ACPI (Advanced Configuration and Power Interface) is also imple-
mented on all ASUS 430TX series of motherboards. ACPI provides more En-
ergy Saving Features for 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
the successor to Windows 95, must be used.
•
PC ’97 Compliant: Both the BIOS and hardware levels of ASUS TXP4 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 pro-
cedures for both Windows 95 and Windows NT.
ASUS TXP4 User’s Manual
9
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10
ASUS TXP4 User’s Manual
II. FEATURES
The ASUS TXP4 Motherboard
USB, PS/2 Mouse, Infrared
Serial, Parallel, Floppy Keyboard
Super Multi I/O
3 PCI Slots
2 ISA Slots
1 ISA/PCI
Shared Slot
AT Power
Connector
ATX Power
Connector
IDE Connectors
4 SIMM Sockets
2 DIMM Sockets
Programmable
Flash ROM
Intel’s 430TX
PCIset
CPU ZIF
Socket 7
Switching Voltage Regulators
512KB Pipelined Burst L2 Cache
ASUS TXP4 User’s Manual
11
III. INSTALLATION
ASUS TXP4 Motherboard Layout
COM 1
Key-
board
Serial Ports
R
COM 2
Parallel Port
USB, PS/2 Mouse,
IrDA
Floppy Drives
Power Fan
Intel
PIIX4
PCIset
Row 0 1 0 1 2 3 2 3
CR2032 3Volts
Lithium Cell
Row 0 1
2 3
Intel
CPU Fan
CPU ZIF Socket 7
430TX
PCIset
BIOS Power
Clock Freq
Switching Voltage Regulators
IDE LED
512KB Pipelined Burst L2 Cache
Chassis Fan
12
ASUS TXP4 User’s Manual
III. INSTALLATION
Jumpers
1) BBLKW
p. 15 Flash ROM Boot Block Programming
2) RTCLR
p. 15 RealTime Clock RAM (Keep CMOS/Clear CMOS)
p. 16 CPU Voltage Output Selection
p. 16 CPU External Frequency (BUS) Selection
p. 16 CPU to BUS Frequency Ratio
3) VID0, VID1, VID2
4) FS0, FS1, FS2
5) BF0, BF1
Expansion Slots
1) System Memory
p. 18 System Memory (SIMM & DIMM)
2) SIMM1, SIMM2, SIMM3, SIMM4 p. 19 72-Pin SIMM Sockets
3) DIMM1, DIMM2
4) CPU
p. 20 168-Pin DIMM Sockets
p. 21 Central Processing Unit (CPU) Socket
p. 22 32-bit PCI Bus Expansion Slots
p. 23 16-bit ISA Bus Expansion Slots
5) PCI1, PCI2, PCI3, PCI4
6) SLOT1, SLOT2, SLOT3
Connectors
1) KB
p. 24 Keyboard Connector (5-pin female)
p. 24 Floppy Disk Drive Connector (34-pin block)
p. 25 Parallel Port Connector (26-pin block)
p. 25 Serial Port Connectors (10-pin blocks)
2) FLOPPY
3) PRINTER
4) COM1, COM2
5) PWR_FAN, CPU_FAN, CHA_FAN p. 26 Power Supply, CPU & Chassis Fan Power Leads
6) PRIMARYIDE, SECONDARYIDE p. 26 Primary/Secondary IDE Connectors (40-pin blocks)
7) MSG.LED (PANEL)
8) SMI (PANEL)
9) PWR.SW (PANEL)
10) RESET (PANEL)
11) PWR.LED (PANEL)
12) KEYLOCK (PANEL)
13) SPEAKER (PANEL)
14) USB/MIR
p. 27 Message LED Lead (2 pins)
p. 27 SMI Suspend Switch Lead (2 pins)
p. 27 ATXPower Switch/Soft Power Switch Lead (2 pins)
p. 27 Reset Switch Lead (2 pins)
p. 27 System Power LED Lead (3 pins)
p. 27 Keyboard Lock Switch Lead (2 pins)
p. 27 Speaker Output Connector (4 pins)
p. 28 USB,PS/2Mouse,InfraredModuleConnector(18-pinblock)
p. 28 Second Infrared Port Module Connector (5-pin block)
p. 29 AT Power Supply Connector (12-pin block)
p. 29 ATX Power Supply Connector (20-pin block)
p. 30 IDE Activity LED
15) IR
16) PS/2 PWR CON.
17) ATX PWR CON.
18) IDELED
ASUS TXP4 User’s Manual
13
III. INSTALLATION
Installation Steps
Before using your computer, you must complete the following steps:
1. Set Jumpers on the Motherboard
2. Install DRAM Modules
3. Install the Central Processing Unit (CPU)
4. Install Expansion Cards
5. Connect Ribbon Cables, Cabinet Wires, and Power Supply
6. Set Up the BIOS Software
1. Jumpers
Several hardware settings are made through the use of jumper caps to connect the
jumper pins on the motherboard. See layout of motherboard on page 12 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
Pin 1
Pin 1 is always on top
the keyboard connector away from you. A “1” is written beside pin 1 on jumpers
with three pins. The jumpers will also be shown graphically 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 jump-
or on the left
when holding the motherboard with
ers 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.
WARNING! Computer motherboards and components, such as sound cards, con-
tain 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
circuitry.
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 User’s Manual
III. INSTALLATION
Jumper Settings
1. Flash ROM Boot Block Programming (BBLKW)
This sets the operation mode of the boot block area of the Programmable Flash ROM
to allow programming in the Boot Block Write Enable position. This is required only
if prompted by the Flash Memory Writer Utility (see BIOS SOFTWARE).
Programming
Boot Block Write-Protect
Boot Block Write Enable
BBLKW
[1-2] (Default)
[2-3]
R
BBLKW
BBLKW
Boot Block
Write-Protect
(Default)
Boot Bock
Write Enable
Boot Block Programming
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 unplug the AC power, (2) Move this
jumper to Clear CMOS, (3) Move the jumper back to Keep CMOS, (4) Turn on
your computer, (5) Hold down <Delete> during bootup and enter BIOS setup to
re-enter user preferences.
Battery Test Jumper (RTCLR)
You can test the battery’s current by removing this jumper and attaching a cur-
rent 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 must enter BIOS to “Load
Setup Defaults” and re-enter any user information after removing and reapply-
ing this jumper.
RTC RAM
RTCLR
Keep CMOS [1-2] (Default)
Clear CMOS [2-3] (momentarily)
RTCLR
RTCLR
Battery Test
Keep CMOS (Default)
Clear CMOS
RTC RAM
ASUS TXP4 User’s Manual
15
III. INSTALLATION
Compatible Cyrix CPU Identification
The only Cyrix processor that is supported on this motherboard
is labeled Cyrix 6x86-P166+, which should be Revision 2.7 or
later. Look on the underside of the CPU for the serial number,
which should read G8DC6620A or later.
3. CPU Voltage Output Selection (VID0, VID1, VID2)
These jumpers set the voltage supplied to the CPU. The voltage regulators will auto-
matically detect and switch between Single Power Plane & Dual Power Planes.
Pentium MMX (P55C)Intel Pentium (P54C) AMD-K6
AMD-K5
IBM/Cyrix 6x86(MX) IBM/Cyrix 6x86(M1)
(PR166 and faster) (PR166 and faster)
(150MHz-233MHz) (75MHz-200MHz) (PR166 and faster) (PR75-PR133)
Manufacturer
CPU Type
Single Plane Dual Plane VID0 VID1 VID2
AMD
K6-PR266
----
2.0 Volts
[----] [2-3] [----]
Intel/AMD/IBM/Cyrix P54C/CS/K5/6x86 3.5V(VRE)
----
[1-2] [2-3] [2-3]
AMD
K6-PR166,200
----
2.9 Volts
Intel/AMD
Intel/IBM/Cyrix
P54C/CS/K5
P55C/6x86MX
3.4V(STD)
----
----
2.8 Volts
[2-3] [2-3] [2-3]
[2-3] [2-3] [1-2]
AMD
K6-PR233
----
3.2 Volts
1
2
3
1
2
3
1
2
3
1
2
3
Dual Plane
Single Plane
P55C/MX
(2.8Volts)
K6-166/200
K6-233
(3.2Volts)
K6-266
(2.0Volts)
(2.9Volts)
P54C/CS/K5 P54C/CS/6x86
(3.4V) (STD) (3.5V) (VRE)
CPU Vcore Voltage Selection
4. CPU External Frequency (BUS) 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 multi-
plied by the BUS Ratio equals the CPU’s internal frequency (the advertised CPU speed).
5. CPU to BUS Frequency Ratio (BF0, BF1)
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 jumpers for CPU External (BUS) Frequency Selection.
16
ASUS TXP4 User’s Manual
III. INSTALLATION
R
1
2
3
1
2
3
1
2
3
1
2
3
3.0x(3/1)
3.0x(3/1)
4.0x(4/1)
1.5x(3/2) 2.0x(2/1)
3.5X(7/2) 2.0x(2/1)
3.0x(3/1) 2.0x(2/1)
2.5x(5/2)
2.5x(5/2)
1.0x(1/1)
P54C/K5
P55C/K6/MX
IBM/Cyrix 6x86
CPU : BUS Frequency Ratio
FS0
FS1
FS2
FS0
FS1
FS2
F
F
FS2
FS0
FS1
FS2
FS0
FS1
FS2
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
Complete Names:
Intel Pentium P54C, P55C-MMX
AMD K5, K6
66MHz
75MHz
50MHz
55MHz
60MHz
CPU External Clock (BUS) Frequency Selection
IBM/Cyrix 6x86, 6x86MX
Set the jumpers according to the internal speed of your processor as follows:
(BUS Freq.)
(Freq. Ratio)
CPU Model
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Intel Pentium
Freq.
Ratio BUS Freq. FS0 FS1 FS2
BF0 BF1
[1-2] [1-2]
[1-2] [2-3]
[2-3] [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] [1-2]
233MHz
200MHz
166MHz
150MHz
150MHz
133MHz
120MHz
100MHz
90MHz
3.5x
3.0x
2.5x
2.5x
2.0x
2.0x
2.0x
1.5x
1.5x
1.5x
66MHz
66MHz
66MHz
60MHz
75MHz
66MHz
60MHz
66MHz
60MHz
50MHz
[2-3] [1-2] [2-3]
[2-3] [1-2] [2-3]
[2-3] [1-2] [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] [2-3] [2-3]
75MHz
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]
[1-2] [2-3]
[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] [1-2] [2-3]
[1-2] [2-3] [2-3]
[2-3] [1-2] [2-3]
[1-2] [2-3] [2-3]
[2-3] [2-3] [2-3]
[1-2] [1-2]
[1-2] [1-2]
[1-2] [1-2]
[1-2] [1-2]
[1-2] [1-2]
IBM/Cyrix 6x86MX-PR233 200MHz
IBM/Cyrix 6x86MX-PR200 166MHz
IBM/Cyrix 6x86MX-PR166 150MHz
3.0x
2.5x
2.5x
66MHz
66MHz
60MHz
[2-3] [1-2] [2-3]
[2-3] [1-2] [2-3]
[1-2] [2-3] [2-3]
[1-2] [2-3]
[2-3] [2-3]
[2-3] [2-3]
*IBM/Cyrix 6x86-PR166+
133MHz
2.0x
66MHz
[2-3] [1-2] [2-3]
[2-3] [1-2]
*NOTE: Only IBM or Cyrix Rev 2.7 or later is supported on this motherboard (see next page). Bootup
screen will show 6x86-P166+ with the Cyrix PR166+ installed on this motherboard.
ASUS TXP4 User’s Manual
17
III. INSTALLATION
2. System Memory (SIMM & DIMM)
This motherboard supports four 72-pin, 32-bit SIMMs (Single Inline Memory Mod-
ules) 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 Sym-
metric), or Enhanced Data Out (EDO) (BEDO & Parity are not supported). SIMMs
must be installed in pairs so that each Row (refer to 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 (DIMMs) can be used when the SIMM sockets are
not used. Two sockets are available for 3.3-volt (power level) unbuffered Synchro-
nous DRAMs (SDRAM) or EDO DRAM of either 8, 16, 32, 64, or 128MB to form
a memory size between 8MB and 256MB. One side (with memory chips) of the
DIMM module takes up one Row on the motherboard.
IMPORTANT: Memory speed is set up through “Auto Configuration” in the 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.
Memory Socket
SIMM Memory Module
Total Memory
SIMM Sockets 1&2
(Rows 0 & 1)
4MB, 8MB, 16MB, 32MB, 64MB
72-pin FPM or EDO SIMM
(DIMM Sockets must be empty)
x2
x2
SIMM Sockets 3&4
(Rows 2 & 3)
4MB, 8MB, 16MB, 32MB, 64MB
72-pin FPM or EDO SIMM
(DIMM Sockets must be empty)
Total System Memory (Max 256MB)
=
WARNING! DO NOT install both SIMMs and DIMMs at the same time or else
you will burn the memory chips. Mixing SIMMs and DIMMs require 5.0-volt
(signal level) tolerant memory chips, which are currently unavailable.
Memory Socket
DIMM Memory Module
Total Memory
DIMM Socket 1
(Rows 0 & 1)
8MB, 16MB, 32MB, 64MB, 128MB
168-pin SDRAM or EDO DIMM
(SIMM Sockets must be empty)
x1
x1
DIMM Socket 2
(Rows 2 & 3)
8MB, 16MB, 32MB, 64MB, 128MB
168-pin SDRAM or EDO DIMM
(SIMM Sockets must be empty)
Total System Memory (Max 256MB)
=
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III. INSTALLATION
SIMM Installation
1. The SIMM memory modules will fit in only one orientation as shown because
the plastic safety tab on one end of the SIMM sockets requires the notched end
of the SIMM memory modules.
R
1 2 3 4
Notched End
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 fingertips, rock the memory module into a vertical position so that it
clicks into place. The plastic guides should go through the two mounting holes
and the metal clips should snap.
Support Clip
72 Pin DRAM in SIMM Socket
Mounting Hole
Safety Tab (This Side Only)
To release the memory module, squeeze both metal clips outward and rock the
module out of the metal clips
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III. INSTALLATION
DIMM Installation
Insert the modules as shown. Because the number of pins are different on either side
of the breaks, the modules will only fit in the orientation as shown. SIMM modules
have the same pin contacts on both sides. DIMM modules are longer and have dif-
ferent pin contacts on each side and therefore have a higher pin density.
1 2
R
20 Pins
60 Pins
88 Pins
Lock
168-Pin DIMM Sockets
Use only 3.3-volt unbuffered DIMMs. The notch in the DIMM module will shift
between left, center, or right to identify the type and also to prevent the wrong type of
DIMM from being inserted into the DIMM socket (see illustration below). Four clock
signals are supported on this motherboard. Ask your retailer for the specifications
before purchasing memory modules.
168-Pin DIMM Notch Key Definitions (3.3V)
Voltage Key Position
Reserved
DRAM Key Position
RFU
Unbuffered
Buffered
5.0V
3.3V
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III. INSTALLATION
3. Central Processing Unit (CPU)
The TXP4 motherboard provides a 321-pin ZIF Socket 7 that is backward compat-
ible 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 install a
fan before you turn on your system.
To install a processor, 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
upward to a 90-degree right angle. Insert the CPU with the correct orientation as
shown. Use the notched corner of the CPU with the white dot as your guide. The
white dot should point toward 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 only one orientation as
shown. The picture is for reference only; the CPU fan must cover the face of the
processor. With the added weight of the fan, no force is required to insert the proces-
sor. Once the processor is 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 processor that you will install.
R
White Dot
Lever
Lock
Blank
ZIF Socket 7 with Pentium Processor
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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
1. Read the documentation for your expansion card.
2. Set any necessary jumpers on your expansion card.
3. Remove your computer system’s cover.
4. Remove the bracket on the slot you intend to use. Keep the bracket for possible
future use.
5. Carefully align the card’s connectors and press firmly.
6. Secure the card on the slot with the screw you removed in step 4.
7. Replace the computer system’s cover.
8. Set up the BIOS if necessary (such as IRQ xx Used By ISA: Yes in PNP AND
PCI SETUP)
9. Install the necessary software drivers for your expansion card.
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.
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III. INSTALLATION
Both ISA and PCI expansion cards may require to use IRQs. System IRQs are avail-
able to cards installed in the ISA expansion bus first, then any remaining IRQs are
available to PCI cards. Currently, there are two types of ISAcards. The original ISA
expansion card design, now referred to as legacy ISA cards, requires that you con-
figure 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 Win-
dows 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 gain 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.
To simplify this process, the TXP4 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 con-
figuration 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.
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. To install a PCI card, you
need to set the INT (interrupt) assignment. Since all the PCI slots on this mother-
board use an INTA #, set the jumpers on your PCI cards to INT A.
Assigning DMA Channels for ISA Cards
Some ISAcards, 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).
ASUS TXP4 User’s Manual
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III. INSTALLATION
5. External Connectors
WARNING! Some pins are used for connectors or power sources. These are
clearly separated from jumpers as shown in the motherboard layout (page 12).
Placing jumper caps over these pins will damage your motherboard.
IMPORTANT: Connect ribbon cables such that the red stripe is 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 and floppy disk drives. IDE ribbon
cable must be less than 18in. (46cm), with the second drive connector no more than
6in. (15cm) from the first connector.
1. Keyboard Connector (5-pin female)
This connector supports either a standard IBM-compatible, 101/102-key, or 104-
key keyboard (Windows 95-compatible).
Keyboard Connector (5-pin female)
This motherboard accepts an AT Keyboard
Connector Plug as shown here.
Keyboard Connector
2. Floppy Disk Drive Connector (34-pin block )
This connector supports the provided floppy disk drive ribbon cable. After con-
necting the single end to the board, connect the two plugs on the other end to the
floppy disk drives. (Pin 5 is removed to prevent inserting in the wrong orien-
tation when using ribbon cables with pin 5 plugged).
R
Pin 1
Orient the red stripe to Pin 1
Floppy Disk Drive Connector
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III. INSTALLATION
3. Parallel Port Connector (26 Pin Block)
This connector supports the included parallel port ribbon cable with mounting
bracket. Connect the ribbon cable to this connection and mount the bracket to
the case on an open slot. You can make available the parallel port and choose the
IRQ through the Onboard Parallel Port in Chipset Features of the BIOS SOFT-
WARE. (Pin 26 is removed to prevent inserting in the wrong orientation
when using ribbon cables with pin 26 plugged).
R
Orient the red stripe to Pin 1
Pin 1
For the parallel port connector to be available,
you must connect the included parallel (25-pin
female) cable set to a free expansion slot
opening.
TIP: You may also remove the bracket
connectors and mount them directly to the
case to save expansion slot space.
Parallel Port Connector
4. Serial Port COM1 & COM2 Connectors (Two 10-pin blocks)
These connectors support the provided serial port ribbon cables with mounting
bracket. Connect the ribbon cables to these connectors and mount the bracket to
the case on an open slot. You can make available the parallel port and choose the
IRQ through the Onboard Serial Port in Chipset Features of the BIOS SOFT-
WARE. (Pin 10 is removed to prevent inserting in the wrong orientation
when using ribbon cables with pin 10 plugged).
R
COM 1
For these connectors to be available,
you must connect the included serial
cable set from COM1 (using the 9-pin
male) & COM2 (using the 25-pin male)
to a free expansion slot opening.
Pin 1
COM 2
TIP: You may also remove the bracket
connectors and mount them directly to
the case to save expansion slot space.
Pin 1
Serial Port Connectors
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III. INSTALLATION
5. Power Supply, CPU Fan, Chassis Fan Connectors (FAN)
This connector supports a 3-pin CPU cooling fan of 500mAmp (6watts) or less
with a minimum of 3,500RPM. Depending on the fan manufacturer, the wiring
and plug may be different. The red wire should be Positive and the black wire
should be Ground.
WARNING! Damage may occur to the motherboard and/or the fans if these
pins are incorrectly used. DO NOT PLACE JUMPER CAPS OVER THESE PINS.
R
Power Supply Fan
Ground
+12 Volts
(NC)
CPU Fan Power
Chassis Fan Power
Power Supply, CPU, 12-volt Chassis Fan Power
6. Primary / Secondary IDE Connectors (Two 40-pin blocks)
These connectors support the provided IDE hard disk ribbon cable. After con-
necting 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 set the second drive to
Slave mode. Refer to the documentation of your hard disk for the jumper set-
tings. BIOS now supports SCSI device or IDE CD-ROM bootup (see HDD Se-
quence 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).
Pin 1
Orient the red stripe to Pin 1
Secondary IDE Connector
Primary IDE Connector
IDE (Hard Disk Drive) Connectors
TIP: You can 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 an-
other on a SCSI drive, and then select the boot disk through the BIOS Features
Setup.
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III. INSTALLATION
7. 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 messages waiting in the inbox).
8. 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 ex-
pand the life of certain components when the system is not in use. This 2-pin con-
nector connects to the case-mounted suspend switch. If the switch is not available,
you can use the turbo switch. SMI is activated when it detects a short to open mo-
ment; leaving it shorted, therefore, will not cause any problems. This may require
one or two presses depending on the switch’s position. Wake-up can be controlled
through the BIOS but the keyboard will always wake-up (the SMI lead cannot
wake up) the system. If you want to use this connector, the “Suspend Mode” under
Power Management Setup of the BIOS SOFTWARE must be set to Enable.
9. ATX Power Switch/Soft Power Switch Lead (PWR SW)
The system power can be controlled by a momentary switch connected to this
lead. Pressing the button once will switch the system between ON and SLEEP.
Pressing 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.
10. Reset Switch Lead (RESET)
This 2-pin connector connects to the case-mounted reset switch to allow the
restarting of your computer without having to turn it off. This is a preferred
method of restarting to prolong the life of the system’s power supply.
11. 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.
12. Keyboard Lock Switch Lead/System Power LED (KEYLOCK)
This 2-pin connector connects to the case-mounted keyboard lock switch to al-
low keyboard locking.
13. Speaker Connector (SPEAKER)
This 4-pin connector connects to the case-mounted speaker.
R
+5V
Message
NC
Power LED
+5V
LED
GND
LOCK
GND
GND
GND
GND
SMI Lead
Keyboard Lock
ATX Power
Switch*
+5V
GND
GND
SPKR
Speaker
Connector
Reset SW
GND
* Required with an ATX power supply.
System Panel Connectors
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III. INSTALLATION
14. USB, PS/2 Mouse, Infrared (IrDA) Module Connector (18-pin block)
If you want to use USB, PS/2 mouse, or infrared devices, you need to purchase
an external connector set. The external connector set connects to the 18-pin
block and mounts to an open slot on your computer’s chassis. 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 and
USB Function in PnP and PCI Setup of the BIOS SOFTWARE. See Second
Infrared... connector for details on the infrared connector.
R
1
9
Infrared
10
18
PS/2
Mouse
10: USB +5Volt
11: USB Port 1 –
12: USB Port 1 +
13: Ground
14: (no connection)
15: PS/2 Mouse Data
16: Ground
17: Reserved
18: Reserved
1: USB +5Volt
2: USB Port 0 –
3: USB Port 0 +
4: Ground
5: (no connection)
6: PS/2 Mouse Clock
7: Ground
8: Reserved
9: Reserved
USB 0
USB 1
Optional USB/MIR
USB, PS/2 Mouse, IrDA Module Connector
15. Second IrDA & Fast IR-Compliant Infrared Connector (IR)
This connector supports the optional wireless transmitting and receiving infra-
red module. This module mounts to a small opening on system cases that sup-
port this feature. You must also configure the setting through UART2 Use Infra-
red in Chipset Features Setup to select whether UART2 is directed for use
with COM2 or IrDA. Use the five pins as shown below (Back View) and con-
nect a ribbon cable from the module to the motherboard according to the pin
definitions.
R
For the infrared feature to be available, you
must connect an optional infrared module to
the motherboard.
Front View
Back View
+5V
FIRRX
GND
IRRX
IRTX
+5V
NC
IRTX
GND
Infrared Module Connector
IRRX
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III. INSTALLATION
16. AT Power Supply Connector (12-pin block)
This connector connects to a standard 5-volt power supply. To connect the leads
from the power supply, ensure first that the power supply is not plugged. Most
power supplies provide two plugs (P8 and P9), each containing six wires, two of
which are black. Orient the connectors so that the black wires are together.
R
+5V
RED
RED
RED
WHT
BLK
BLK
BLK
BLK
BLU
YLW
RED
ORG
-5V
GND
-12V
+5V
+12V
PG
Power Connector
on Motherboard
Power Plugs from
Power Supply
AT Power Connector
Using a slight angle, align the plastic guide pins on the lead to their receptacles
on the connector. Once aligned, press the lead onto the connector until the lead
locks into place.
17. ATX Power Supply Connector (20-pin block)
This connector connects to an 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 making sure that the pins are
aligned.
IMPORTANT: Make sure that the ATX power supply can take at least 10mA
load on the 5-volt standby lead (5VSB). You may experience difficulty in pow-
ering on your system if your power supply cannot support the load.
R
3.3V —
12.0V —
GND —
PS-ON —
GND —
GND —
GND —
— 3.3V
— 3.3V
— GND
— 5.0V
— GND
— 5.0V
— GND
5.0V —
5.0V —
5.0V —
— PW-OK
— 5VSB
— 12.0V
ATX Power Connector
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29
III. INSTALLATION
18. IDE Activity LED (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.
R
TIP: If the case-mounted LED
does not light, try reversing the
2-pin plug.
IDE LED
+
IDE Activity LED Lead
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III. INSTALLATION
Power Connection Procedures
1. After all jumpers and connections are made, close the system case cover.
2. Make sure that all switches are in the off position as marked by ° .
3. Connect the power supply cord into your computer’s power supply.
4. Connect the power cord into a power outlet that is equipped with a surge protector.
5. You may then turn on your devices in the following order:
a. Your monitor
b. External SCSI devices (starting with the last device in 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 ap-
pear 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, press <Delete> to enter the BIOS setup. Follow the instruc-
tions on the next section, “BIOS SOFTWARE.”
* Powering Off Your Computer: You must first exit or shut down your operat-
ing system before switching off the power switch. For ATX power supplies,
you can press the ATX power switch after exiting or shutting down your oper-
ating system. For Windows 95 users, you can click Shut down the computer?
from the Start button and the system will give three quick beeps after about 30
seconds and power off after Windows shut down.
NOTE: The message, It’s now safe to turn off your computer, will not be
shown in Windows 95 when using shut down with ATX power supplies.
ASUS TXP4 User’s Manual
31
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 mother-
board. 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 num-
bers 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
ASUSTek PNP BIOS
FLASH MEMORY WRITER V1.5
Copyright (C) 1995, ASUSTek COMPUTER INC.
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 Feature
Enter Choice: [1]
Press ESC To Exit
xxxx denotes the current BIOS version stored in the Flash EPROM
IMPORTANT: Flash Type may also be “INTEL 28F001BXT.” If “unknown” is
shown after “Flash type --,” then this ROM chip is not programmable or not sup-
ported with the PnP BIOS and therefore cannot be programmed by the Flash Memory
Writer.
Main Menu
1. Save Current BIOS To File (Perform as soon as system is operational)
This option allows you to copy the contents of the Flash memory chip onto a disk.
This gives you a backup copy of the original motherboard BIOS in case you need to
reinstall it.
Create a system disk by typing FORMAT A:/S on the DOS prompt (do not
create “AUTOEXEC.BAT” and “CONFIG.SYS”), then save the PFLASH.EXE
file and the BIOS to the system disk.
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IV. BIOS SOFTWARE
2. Update BIOS Main Block From File
This option updates the BIOS from a file on the disk. This can either be a new file or
a backup file created by the “Save Current BIOS to File” option. This will not up-
date the Boot Block if the Boot Block is different. You will be prompted with the
following if advanced features if necessary.
Boot Block of New BIOS is different from old one !!!
Please Use 'Advanced Feature' to flash whole bios !!!
3. Advanced Feature
Selecting this option brings up the Advanced Feature screen for clearing the PnP
configuration record and updating the motherboard BIOS.
Advanced Feature Menu
Advanced Feature
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 Return To Main Menu
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 motherboard BIOS and the PnP ESCD
Parameter Block from a new BIOS file.
NOTE: “Update BIOS Main Block from File” and “Update BIOS Including Boot
Block and ESCD” require that the system is running in real mode. This utility will not
operate if the system is under protected mode or virtual mode. You must boot from a
system floppy disk without the “AUTOEXEC.BAT” and “CONFIG.SYS” files.
ASUS TXP4 User’s Manual
33
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: Flash type may be “SST” or “INTEL.” If “unknown” is displayed
after “Flash type --,” then this ROM chip is not programmable or not supported by
the PnP BIOS and therefore cannot be programmed by the Flash Memory Writer.
1. Download an updated ASUS BIOS file from the Internet (WWW or FTP) or a
BBS (Bulletin Board Service) (seeASUS CONTACT INFORMATION on page
3 for details) and save to the disk you created earlier.
2. Turn off your computer and open the system cabinet to Boot Block Write Enable
the “Boot Block Programming” jumper as shown in section III.
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. Set the jumper back to its default setting of
Boot Block Write-Protect.
8. Turn on your computer and press <Delete> to enter BIOS setup. You must select
“Setup Default” to effect the new BIOS, then you may set 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 volts and 12
volts. Either of these memory chips can be updated when BIOS upgrades are re-
leased. 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 sys-
tem configuration and settings. If your motherboard came in a computer system, the
proper configuration entries may have already been made. If so, run the Setup util-
ity, as described later, and take note of the configuration settings for future refer-
ence, 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.
The BIOS ROM of the system stores the Setup utility. When you turn on the com-
puter, the system provides you with the opportunity to run this program. This ap-
pears during the Power-On Self Test (POST). Press <Delete> to call up the Setup
utility. If you are a little bit late pressing <Delete>, 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. Do this only, however, if the first two methods fail.
When you run Setup, the CMOS SETUP UTILITY main program screen will ap-
pear with the following options:
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Load Defaults
Load BIOS Defaults loads the minimized 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. Another section just below
the control keys section displays information on the currently highlighted item in the
list.
Standard CMOS Setup
Standard CMOS Setup allows you to record some basic system hardware configu-
ration 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. How-
ever, 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 cor-
rupted when the power of the onboard CMOS battery weakens.
User-configurable fields appear in a different color. If you need information on the
selected field, press <F1>. The help menu will then appear to provide you with the
information you need. The memory display at the lower right-hand side of the screen
is read-only and automatically adjusts accordingly.
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Details of Standard CMOS Setup:
Date
To set the date, highlight the “Date” field and then press either <Page Up>, <Page
Down>, plus or minus signs (on the numeric keypad) to set the current date. Follow
the month, day and year format. Valid values are Month: (1 to 12), Day: (1 to 31),
Year: (up to 2099).
Time
To set the time, highlight the “Time” field and then press either <Page Up>, <Page
Down>, plus or minus signs (on the numeric keypad) to set the current time. Follow
the hour, minute and second format. Valid values are Hour: (00 to 23), Minute: (00 to 59),
Second: (00 to 59).
NOTE: You can bypass the date and time prompts by creating anAUTOEXEC.BAT
file. For information on how to create this file, please 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 chan-
nels 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 because they operate
using device drivers and are not supported by any BIOS. If you install the optional
PCI-SC200 SCSI controller card into the motherboard (see section VI for instruc-
tions). If you install other vendor’s SCSI controller card, refer to the documentation
that came with the card on how to install the required SCSI drivers.
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 auto-
matically adjusts according to the configuration you specify. The documentation
that came with your hard disk should provide you with the information regarding
the drive specifications.
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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.
Autodetection 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 disk drives 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 using
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.
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 3.5-inch
disk drive. This is normally disabled but you may choose from either Drive A, Drive
B, Both, or Disabled.
Video (EGA/VGA)
Set this field to the type of video display card installed in your system. The options
are EGA/VGA, CGA 40, 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
either All Errors; No Errors; All, But Keyboard; All, But Diskette; or All, But Disk/Key.
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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.
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 rec-
ommended because of conflicts with new operating systems or some programs. Installa-
tion 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 (Pentium Pro is built-in).
Quick Power On Self Test (Enabled)
This field speeds up the Power-On Self Test (POST) routine by skipping retesting a
second, third, and forth time. Setup default setting for this field is Enabled. A com-
plete test of the system is done on each test.
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.
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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.
Security Option (System)
This field determines when the system prompts for the password. The default set-
ting 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. IRQ12 will be reserved for expansion cards
if a PS/2 Mouse is not detected. Disabled will reserve IRQ12 for expansion cards
and therefore the PS/2 Mouse will not function.
PCI/VGA Palette Snoop (Disabled)
Some display cards that are nonstandard VGAsuch 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.
......................................................................................................................................
Video ROM BIOS Shadow (Enabled)
This field allows you to change the video BIOS location from ROM to RAM. Relocat-
ing to RAM enhances system performance, as information access is faster than the ROM.
C8000-CBFFF to DC000-DFFFF (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.
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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. Op-
tions range from 6 to 30 characters per second. Setup default setting is 6; other
settings are 8, 10, 12, 15, 20, 24, and 30.
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.
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 for the previous screen.
NOTE: SETUP Defaults are noted in parenthesis next to each function heading.
Details of Chipset Features Setup
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.
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SDRAM CAS# Latency (3T)
If you use ASUS SDRAM DIMM modules, you can set this to 2T for better perfor-
mance, 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
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.
....................................................................................................................................
Onboard FDC Controller (Enabled)
When enabled, this field allows you to connect your floppy disk drives to the on-
board 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.
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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 bidi-
rectional 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.
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. See Second IrDA & Fast IR-Compliant Infrared Connector un-
der section III .
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 de-
vices. 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.
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 DMAtimings can be independently set. The default
setting of Auto will allow autodetection to ensure optimal performance.
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Power Management Setup
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
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 dis-
ables 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 acti-
vated 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 areAll Modes -> Off; Always On; Suspend -> Off; and Susp,Stby
-> Off .
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Video Off Method (DPMS OFF)
This field defines the video off features. The following 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 (use this for 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.
PWR Button < 4 Secs (Soft Off)
The default of Soft Off allows theATX switch to function as a normal system power-
off button when pressed for less than 4 seconds. Suspend setting allows the button to
have a dual function where less than 4 seconds will place the system in sleep mode.
No Function disables the ATX switch of any functions under 4 seconds. Regardless
of the setting, holding the ATX switch for more than 4 seconds will power off the
system.
PWR Up On Modem Act (Enabled)
This allows the settings of Enabled or Disabled for powering up the computer (turns
the ATX power supply on) when the modem begins receiving or transmitting data
while the computer is off.
AC PWR Loss Restart (Disabled)
This item 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.
PM Timers (Disabled)
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 sys-
tem inactivation modes.
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 shuts down any IDE hard disk drives in the system after a pe-
riod of inactivity. This time period is user-configurable to 1-15 Mins or Disable.
This feature does not affect SCSI hard disks.
The Doze Mode, Standby Mode, and Suspend Mode fields set the period of time
after which each of these modes activate. At Max Saving, these modes activate se-
quentially (in the given order) after 30 seconds; at Min Saving after 40 minutes.
.......................................................................................................................................
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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
PNP OS Installed (No)
When Plug and Play operating systems (OS) are installed, interrupts may be reas-
signed by the OS when Yes is selected. When a non-Plug and Play OS is installed or
to prevent reassigning of interrupt settings, select No.
Slot 1/2/3/4 IRQ (Auto)
The first four fields on the screen set how IRQ use is determined for each PCI slot.
Slot 1 (Right) is nearest the memory sockets. The default setting for each field is
Auto, which uses auto-routing to determine IRQ use. The other options are the manual
settings of NA, 5, 7, 9, 10, 11, 12, 14, or 15 for each slot.
PCI Latency Timer (32 PCI Clock)
“32 PCI Clock” enables maximum PCI performance for this motherboard.
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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 (non-PnP) 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.
......................................................................................................................................
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 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.
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 C800, CC00, D000, D400, D800, and DC00
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, 32K, or 64K. If you are using an ICU to
accomplish this task, leave ISA MEM Block BASE to its default setting of No/ICU.
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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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-opti-
mal and disable all high performance features. To load these default settings, high-
light “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 con-
firm. 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 sys-
tem configuration fields. These default values are the optimized configuration set-
tings 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.
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Supervisor Password and User Password
These two options set the system passwords. “Supervisor Password” sets a pass-
word 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
in 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 re-
verts to the main screen.
To implement the 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.
ROM PCI/ISA BIOS (<<TXP4>>)
CMOS SETUP UTILITY
AWARD SOFTWARE, INC.
HARD DISKS
TYPE
SIZE
CYLS
HEAD
PRECOMP
LANDZ
SECTOR MODE
Primary Master :
Select Primary Master Option (N=Skip) : N
OPTIONS
SIZE
CYLS
HEAD
PRECOMP
LANDZ
SECTOR
MODE
2(Y)
1
3
849
849
849
823
1647
823
32
16
32
0
65535
65535
1646
1646
1646
63
63
63
LBA
NORMAL
LARGE
Note: Some OSes (like SCO-UNIX) must use “NORMAL” for installation
ESC : Skip
(This screen could not be run from inside active programs and therefore could not be captured.)
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 dis-
played 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.
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 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 auto-detection 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 autodetection feature can only detect one set of parameters for a particular IDE
hard disk. Some IDE drives can use more than one set. This is not a problem if the
drive is new and there is nothing on it.
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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 cor-
rect 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 drive was formatted, the
drive will not be readable. If the auto-detected parameters do not match the ones that
should be used for your drive, do not accept them. Press the <N> key to reject the
presented settings and enter the correct ones manually from the Standard CMOS
Setup screen.
Save and Exit Setup
Select this option to save into the CMOS memory all modifications you specify
during the current session. To save the configuration changes, highlight the “Save &
Exit Setup” option on the main screen and then press the <Enter> key.
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 Sav-
ing” option on the main screen and then press the <Enter> key.
ASUS TXP4 User’s Manual
51
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 Con-
figuration 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 Con-
figuration Utility also allows the system integrator or end user to add additional
information into the MIFD such as serial numbers, housing configurations, and ven-
dor 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 updat-
ing and will prevent the refreshing failures associated with updating the entire BIOS.
System Requirements
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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ASUS TXP4 User’s Manual
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.
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 has
been modified by the user.
ASUS TXP4 User’s Manual
53
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
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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ASUS TXP4 User’s Manual
VI. ASUS PCI SCSI Cards
Symbios SCSI BIOS and Drivers
Aside from the system BIOS, the Flash memory chip on the motherboard also con-
tains the Symbios SCSI BIOS. This Symbios SCSI BIOS works in conjunction with
the optionalASUS 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, Win-
dows 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 Win-
dows, Microsoft Windows NT, Novell NetWare and IBM OS/2. These drivers pro-
vide 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, please 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 mother-
board 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.
ASUS TXP4 User’s Manual
55
VI. ASUS PCI SCSI Cards
Setting Up the ASUS PCI-SC200 & PCI-SC860
There are two jumper settings you may need to make on theASUS 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
JPJP
1 2
JPJP
1 2
1
2
3
1
2
3
1
2
3
1
2
3
INT A (Def) INT B
INT C
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 con-
nect to theASUS PCI-SC200 orASUS 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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ASUS TXP4 User’s Manual
VI. ASUS PCI SCSI Cards
Terminator Settings for the ASUS PCI-SC860
Many SCSI devices including the ASUS PCI-SC860 use a set of onboard terminat-
ing resistors to terminate the devices at the ends automatically. Automatic termina-
tion 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 forma-
tions 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.
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.
JP
5
JP
5
Terminated (Default)
Not Terminated
Terminator Setting (Terminated / Not Terminated)
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57
VI. ASUS PCI SCSI Cards
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 1
SCSI Device 2
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 ap-
plies 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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ASUS TXP4 User’s Manual
VII. ASUS I-A16C Audio Card
NOTE: The ASUS I-A16C 16-bit ISA audio card comes with certain mother-
board bundles only and is not for sale separately.
ASUS I-A16C Audio Features
•
•
•
•
•
Creative Labs ViBRA 16C PnP Audio Chip
Full Duplex Supports
16/8-bit PCM 5KHz to 44.1KHz
Wave Table Upgradeable
Software Includes:
DOS and Window 3.1 Drivers
Windows 95 Driver
Wave Editor
Wave OLE
Quick CD
Mixer Control
Quick Player
Unpacking and Handling Precautions
WARNING! Keep the ASUS I-A16C stored in its anti-static bag until you are
ready to install it in your system. The ASUS I-A16C is easily damaged by static
electricity.
Observe the following precautions while unpacking and handling the board:
•
Before handling the board, discharge static electricity from your body by touch-
ing an unpainted area of the system's metal chassis. While installing the board,
ground yourself frequently to discharge any static electricity that may accu-
mulate in your body.
•
•
After removing the board form the anti-static bag, place it on a grounded sur-
face with the components facing up.
Check the board for damage. If any socketed component appears loose, press
firmly but carefully to seat the chip in its socket. Otherwise, avoid touching
the components on the board. Always handle the board by the edges.
ASUS TXP4 User’s Manual
59
VII. ASUS I-A16C Audio Card
Layout and Connectors
Panasonic Audio In
Wave Table Upgrade
PC Speaker Out
Mitsumi Audio In
Sony Audio In
PC Speaker In
Volume Control
Speaker Out
Line Out
Line In
Microphone
MIDI/Game
Connectors
The audio input connectors are used when you wish to control software mixer set-
tings (e.g., bass, treble, volume) for CDs that are played with your CD-ROM drive.
If the “Audio Out” from the CD-ROM drive is not connected to the “Audio In” on
the card, you can only use the direct output located in the front panel of the CD-
ROM drive and adjust volume level by the knob.
CD-Audio Connector Pin Definitions
Sony Audio In
Mitsumi Audio In
Panasonic Audio In
Pin Definition
Pin Definition
Pin Definition
l
Right Signal
Ground
Ground
1
2
3
4
Ground
Left Signal
Ground
1
2
3
Left Signal
Ground
Right Signal
2
3
4
Left Signal
Right Signal
-- ----
PC Speaker In
PC Speaker Out
Volume Control
Pin Definition
Pin Definition
Pin Definition
1
2
Mono Signal
Ground
1
2
3
4
Right Signal
Ground
Left Signal
Ground
1
2
3
4
5
Ground
Volume Up
Ground
Volume Down
Ground
-- ----
-- ----
-- ----
-- ----
60
ASUS TXP4 User’s Manual
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