Pentium
82430 TX P54C/P55C PCI Mainboard
User’s Guide &
Technical Reference
5BT5
ii
®
™
About This Guide
This UserÕs Guide is for assisting system manufacturers and end users in setting
up and installing the mainboard. Information in this guide has been carefully
checked for reliability; however, no guarantee is given as to the correctness of the
contents. The information in this document is subject to change without notice.
Copyright Notice
Copyright 1997, Soyo Computer Inc. All rights reserved. This manual is
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Disclaimer
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Edition: July 1997
Version 1.1
5BT5 SERIAL
Table of Contents
Chapter 1: Introduction .................................................. 1
Key Features ............................................................................... 1
Unpacking the Mainboard........................................................... 2
Electrostatic Discharge Precautions............................................ 2
Mainboard Layout w/ Default Settings ....................................... 3
Chapter 2: Hardware Setup ............................................ 5
Jumpers ....................................................................................... 5
JP5: CMOS Clear Jumper ..................................................... 5
JP40: CE Test Jumper Pin .................................................... 5
JP43: CPU Cooling Fan Connector...................................... 6
ATP1, PW3, JP44: Power Supply Selection Jumpers.......... 6
CPU Type Configuration ............................................................ 7
Step 1: Frequency Setting..................................................... 7
Pentium Ð 90/100 CPU Settings (1.5 x clock).................. 7
Pentium Ð 120/133 CPU Settings (2.0 x clock)................ 8
PentiumÐ 150/166 CPU Settings (2.5 x clock) ................. 9
Pentium Ð 180/200 CPU Settings (3.0 x clock)................ 9
Pentium Ð 233 CPU Settings (3.5 x clock) ..................... 10
AMD K6 Ð PR266 CPU Setting (4.0 x clock)................ 10
Step 2: CPU Single/Dual Voltage Setting.......................... 11
Single Voltage CPU Setting ........................................... 11
Dual Voltage CPU Setting.............................................. 12
Memory Configuration ............................................................. 12
Memory Configuration Table.............................................. 13
RAM Bank Installation Notice............................................ 13
Cache Configuration ................................................................. 13
Cache Size and RAM Locations ......................................... 13
Multi I/O Port Addresses .......................................................... 14
Connectors ................................................................................ 14
PW2 Ñ ATX Power Supply On/Off Switch Connector
(Momentary Type)............................................................... 14
COM1, COM2 Ñ COM1/COM2 Connectors .................... 14
FDC Ñ FDC Connector...................................................... 15
AT PW Ñ Power Supply Connectors ................................. 15
ATX PW Ñ ATX Power Supply Connectors ..................... 15
J19 Ð Hardware Reset Control............................................. 15
J24 Ð HDD LED Connectors ............................................... 16
IDE1/IDE2 Ð On-board Primary/Secondary IDE HDD
Connectors ........................................................................... 16
IR1 Ð IR Connector ............................................................. 16
J17 Ð Keylock & Power LED Connector ............................ 16
KB Conn. Ð Keyboard Connector ....................................... 16
PS/2 Mouse Conn. Ð PS/2 Mouse Connector...................... 17
PRT Ð Parallel Port Connector ............................................ 17
J18 Ñ Speaker Connector ................................................... 17
USB1 Ð Universal Serial Bus Connectors ........................... 17
Chapter 3: BIOS Setup.................................................. 18
Standard CMOS Setup .............................................................. 19
BIOS Features Setup ................................................................. 21
Chipset Features Setup.............................................................. 24
Power Management Setup ........................................................ 26
PNP/PCI Configuration Setup .................................................. 29
Load Setup Defaults.................................................................. 31
Load BIOS Defaults.................................................................. 31
Integrated Peripherals ............................................................... 32
Supervisor Password ................................................................. 35
User Password ........................................................................... 36
IDE HDD Auto Detection ......................................................... 37
Chapter 4: Drivers Installation Guide ......................... 38
IDE BUS Master Installation Guide ......................................... 38
MS-DOS/WINDOW/WFW ................................................ 38
WINDOWS NT3.5/4.0........................................................ 38
WINDOWS 95 .................................................................... 39
NOVELL 3.X&4.X ............................................................. 39
SCO UNIX .......................................................................... 39
SCO UNIX 5.0 .................................................................... 40
OS/2 2.0 and WARP 3.X..................................................... 41
Appendix A: CPU Setting List Update ........................ 42
Appendix B: Frequently Asked Questions................... 44
1 Introduction
The 82430 TX PCI mainboard is a high-performance AT form-factor
system board that supports P54C/P55C family CPUs and 512K external
cache memory on the mainboard. The mainboard is fully compatible
with industry standards, and adds many technical enhancements.
Key Features
¥ CPU
Ñ Supports P54C/P55C family CPUs running at 90~233 MHz
speeds; Cyrix 6x86/6x86L/MX CPUs running at
PR133+/PR150+/PR166+/PR200+ speeds; and AMD K5/K6
CPUs running at PR90 ~ PR266
Ñ Supports SOCKET 7 for upgrade
Ñ Supports P54C/P55C series SMM Mode and CPU Stop Clock
Ñ Smart Detect CPU Voltage function
¥ L2 Cache Controller
Ñ Write Back Cache Modes and Direct Mapped Organization
Ñ On-board 512K Pipeline Burst SRAMs Cache
¥ DRAM Controller
Ñ Supports Fast-Page Mode, EDO , and SDRAM (both symmetrical
and asymmetrical addressing)
Ñ Supports 2 strips of 8MB/16MB/32MB Unbuffered DIMMs
Ñ On-board memory configurations from 4 to 256 Mbytes
Ñ Supports ÒTable-FreeÓ DRAM configuration in any SIMM bank
¥ BUS Controller
Ñ Compliant to PCI specifications v2.1
Ñ Four 32-bit PCI slots (Masters) and three ISA slots, 4-layer PCB
Ñ Supports Universal Serial Bus Ñ USB
¥ Peripheral Controller
Ñ System BIOS built-in NCR810 SCSI Card BIOS and ÒPlug and
PlayÓ function
Ñ On-board built-in PCI Master IDE controller and floppy controller
Ñ On-board supports for two high speed UARTS (w/i 16550 FIFO),
one ECP/EPP/SPP compatible parallel port, and one PS/2 mouse
port
Ñ On-board supports FLASH Memory for easy upgrade BIOS
Ñ Easy installation of Triones EIDE/ATAPI CD-ROM Bus
Master Drivers
Ñ Supports AT and ATX power supply connectors
2 Introduction
Unpacking the Mainboard
The mainboard package contains:
¥ The 82430TX Mainboard
¥ This UserÕs Guide
¥ One IDE Bus Master driver diskette
Note: Do not unpack the mainboard until you are ready to install it.
Follow the precautions below while unpacking the mainboard.
1. Before handling the mainboard, ground yourself by grasping an
unpainted portion of the systemÕs metal chassis.
2. Remove the mainboard from its anti-static packaging and place it on
a grounded surface, component side up.
3. Check the mainboard for damage. If any chip appears loose, press
carefully to seat it firmly in its socket.
Do not apply power if the mainboard appears damaged. If there is
damage to the board contact your dealer immediately.
Electrostatic Discharge Precautions
Make sure you ground yourself before handling the mainboard or other
system components. Electrostatic discharge can easily damage the
components. Note that you must take special precaution when handling
the mainboard in dry or air-conditioned environments.
Take these precautions to protect your equipment from electrostatic
discharge:
¥ Do not remove the anti-static packaging until you are ready to install
the mainboard and other system components.
¥ Ground yourself before removing any system component from its
protective anti-static packaging. To ground yourself grasp the
expansion slot covers or other unpainted portions of the computer
chassis.
¥ Frequently ground yourself while working, or use a grounding strap.
¥ Handle the mainboard by the edges and avoid touching its
components.
Introduction 3
Mainboard Layout w/ Default Settings
7
8
4
2
2
3
3
1
5
6
19
14
11
13
12
9
10
15
16
17
18
Figure 1Ð1. Mainboard Layout
1. ZIF socket 7 (for P54C/P55C) 11. Floppy Connector
2. 82430 TX Chipset 12. IDE1/IDE2 Connector
3. Pipelined Burst SRAM 13. Parallel Port Connector
4. Ultra I/O Chip 14. COM1/COM2 Connector
5. PnP FLASH BIOS 15. AT Power Supply
Connector
6. TAG SRAM 16. AT/ATX Power Connector
7. ISA Slots 17. PS/2 Mouse Connector
8. PCI Slots 18. KB Connector
9.
10.
SIMM Bank
Unbuffered DIMM Bank
19. Lithium battery (for
CMOS memory, 3V)
4 Introduction
Default settings are as follows: Pentium 133MHz (P54C) CPU, 512K
Pipelined Burst cache, On-board PCI E-IDE Enabled, 2 high speed
UARTS Enabled (w/ 16550 FIFO), 1 EPP/ECP port (ECP + EPP mode),
5V DRAM/3.3V DIMM, and AT power supply.
#3 #2 #1
ISA SLOT
#4 #3 #2 #1
PCI SLOT
DIMM1
DIMM2
SIMM BANK 1
SIMM BANK 0
IDE1
IDE2
FDC
PRT
COM1
COM2
AT PW
ATX PW
W83977TF
KB
Conn.
PS/2
Mouse
Conn.
82371AB
Lithium
Battery
(3V)
Flash BIOS
586 CPU
Family
P.B. SRAM
64K x 32
P.B. SRAM
64K x 32
82439TX
TAG SRAM
USB1
145
9
1
IR1
ATP1
JP44
1
JP43
1
JP5
1
PW2
54321
SW1
ON
J17
1
5
1
4
J18
14
J24
J19
SW2
(BF2)
JP30
1
3
5
7
9
PW3
++
+
+
+
Figure 1Ð2. Mainboard Default Setting
Important: Make sure the system is well ventilated to prevent
overheating and ensure system stability.
2 Hardware Setup
This chapter explains how to configure the mainboardÕs hardware. After
you install the mainboard, you can set jumpers, install memory on the
mainboard, and make case connections. Refer to this chapter whenever
you upgrade or reconfigure your system.
CAUTION: Turn off power to the mainboard, system chassis, and
peripheral devices before performing any work on the
mainboard or system.
Jumpers
JP5: CMOS Clear Jumper
Clear the CMOS memory by momentarily shorting pin 2Ð3; then
shorting pin 1Ð2 to retain new settings.
CMOS Setting JP5
Retain CMOS data
(default)
1
Clear CMOS data
1
JP40: CE Test Jumper Pin
This connector is reserved for the CE test. If you run into problems
during the CE test, unplug the jumper pin and try again.
6 Hardware Setup
JP43: CPU Cooling Fan Connector
This 3-pins connector provides 12V power for the CPU cooling fan
which matches the pin assignment of this connector. If you enable the
Suspend Mode function in BIOS setup, this fan will stop when the
system is into the suspend mode.
CPU Cooling Fan
Connector
(Pin Assignment)
1 (GND)
2 (12V)
3 (GND)
Note: Make sure the pin assignment of our CPU Cooling Fan is
matched with this connector before connecting it, otherwise,
you may damage either the mainboard or the cooling fan.
ATP1, PW3, JP44: Power Supply Selection Jumpers
These three jumpers let you select either the AT or the ATX power
supply. Use only one power supply at a time on this mainboard.
AT Power
Supply
(default)
ATX Power
Supply
ATP1
PW3
JP44
1
1
AT PW
ATP1
JP44
1
PW2
CPU Type Configuration
This section shows you how to configure your CPU step by step. Note
that you need to check the CPU voltage before installation. This
mainboard supports 75MHz host bus frequency for Cyrix CPUs. Beware
that 75MHz host bus frequency is over the specification of this chipset.
Therefore, you have to use high quality devices to meet the standard of
these CPUs, i.e., high quality DRAM and VGA card.
❑ Step 1: Frequency Setting
Pentium – 90/100 CPU Settings (1.5 x clock)
AMD K5 – PR90/PR100/PR120/PR133 (1.5 x clock)
82371AB
586 CPU
Family
P.B. SRAM
64K x 32
P.B. SRAM
64K x 32
54321
SW1
ON
12345
12345
SW1
ON
Pentium – 90/60 MHz
AMD K5 – PR 90/60MHz
AMD K5 – PR 120/60 MHz
Pentium – 100/66 MHz
AMD K5 – PR 100/66 MHz
AMD K5 – PR 133/66 MHz
SW1
ON
Figure 2Ð1Ð1. CPU Jumper Settings
Note: 1. You must equip the CPU with a fan and heat sink for system
stability.
2. AMD K5ÐPR90= AMD 5k86(SSA5)ÐP90.
8 Hardware Setup
Pentium – 120/133 CPU Settings (2.0 x clock)
Cyrix 6x86/6x86L – PR133+/PR150+/PR166+/PR200+ CPU Settings (2.0 x
clock)
AMD K5/K6 – PR150 CPU Setting
82371AB
586 CPU
Family
P.B. SRAM
64K x 32
P.B. SRAM
64K x 32
54321
SW1
ON
12345
12345
12345
SW1
ON
SW1
ON
ON
Cyrix 6x86/6x86L – PR133+/55 MHz
12345
SW1
ON
Cyrix 6x86/6x86L – PR200+/75 MHz
Pentium – 120/60 MHz
Cyrix 6x86/6x86L – PR150+/60 MHz
AMD K5/K6 – PR150
Pentium – 133/66 MHz
Cyrix 6x86/6x86L – PR166+/66 MHz
Figure 2Ð1Ð2. CPU Jumper Settings
Note: You must equip the CPU with a fan and heat sink for system
stability.
Hardware Setup 9
Pentium– 150/166 CPU Settings (2.5 x clock)
AMD K5/K6– PR166 CPU Setting
82371AB
586 CPU
Family
P.B. SRAM
64K x 32
P.B. SRAM
64K x 32
54321
SW1
ON
12345
12345
SW1
ON
SW1
ON
Pentium – 150/60 MHz
Pentium – 166/66 MHz
AMD K5/K6 – PR166
Figure 2Ð1Ð3. CPU Jumper Settings
Pentium – 180/200 CPU Settings (3.0 x clock)
AMD K6 – PR200 CPU Setting
82371AB
586 CPU
Family
P.B. SRAM
64K x 32
P.B. SRAM
64K x 32
54321
SW1
ON
12345
Pentium – 180/60 MHz
Pentium – 200/66 MHz
AMD-K6/PR2-200
SW1
ON
12345
SW1
ON
Figure 2Ð1Ð4. CPU Jumper Settings
Note: You must equip the CPU with a fan and heat sink for system
stability.
10 Hardware Setup
Pentium – 233 CPU Settings (3.5 x clock)
AMD K6 – PR233 CPU Setting
82371AB
586 CPU
Family
P.B. SRAM
64K x 32
P.B. SRAM
64K x 32
54321
SW1
ON
Figure 2Ð1Ð5. CPU Jumper Settings
Note: You must equip the CPU with a fan and heat sink for system
stability.
AMD K6 – PR266 CPU Setting (4.0 x clock)
82371AB
586 CPU
Family
P.B. SRAM
64K x 32
P.B. SRAM
64K x 32
54321
SW1
ON
SW2
(BF2)
Figure 2Ð1Ð6. CPU Jumper Settings
Hardware Setup 11
❑ Step 2: CPU Single/Dual Voltage Setting
There are two kinds of CPU input voltages due to various designs of
CPUsÑsingle voltage and dual voltage. Set your CPU according to the
type that you have.
For Intel P54C/P55C series CPUs, there is no need to adjust any jumper
for CPU voltag due to the Smart Detect CPU Voltage function.
Single Voltage CPU Setting
Signal voltage CPUs use the same voltage for VIO and VCore and has
been used traditionally. The CPUs which fall into this category are Intel
P54C series, AMD-K5-PRxxxBx, AMD-K5-PRxxxCx, AMD-K5PRxxxFx, and Cyrix 6x86. Refer to the following figures to set these
CPUsÕ voltage:
82371AB
586 CPU
Family
P.B. SRAM
64K x 32
P.B. SRAM
64K x 32
JP30
1
3
5
7
9
3
1
5
9
7
3.3V CPU
3
1
5
9
7
3.52V CPU
(default)
Figure 2Ð2Ð1. Single Voltage CPU
Note: Please ask your CPU dealer for the exact CPU voltage before
you install it.
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