SOYO 82430 HX / P54C Use and care manual

Pentium
82430 HX / P54C PCI Mainboard
User’s Guide &
Technical Reference
5TS0/S2/S5

®
™
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.
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Copyright 1996, Soyo Computer Inc. All rights reserved. This manual is
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Edition: August 1996
Version 2.0
5TS0/S2/S5 SERIAL

Table of Contents
Chapter 1: Introduction ....................................................1
Key Features .................................................................................1
VGA Chips Features .....................................................................2
High-Performance Integrated Graphics/Video Accelerator (S3
Trio 64V+)...............................................................................2
Advanced Playback Capabilities .............................................2
S3 Scenic Highway Interface (H/W MPEG)...........................2
High non-Interlaced Screen Resolution Support .....................2
High-Performance Memory Interface .....................................2
Unpacking the Mainboard.............................................................4
Electrostatic Discharge Precautions..............................................4
Mainboard Layout w/ Default Settings .........................................5
Chapter 2: Hardware Setup ..............................................7
Jumpers .........................................................................................7
Factory Set Jumpers ................................................................7
JP3: Display Type ...................................................................7
JP10: Sleep Switch Connector Enable/Disable .......................7
JP32, JP33: Bus Fraction Core/Bus Ratio Select ....................8
JP5: CMOS Clear Jumper .......................................................8
J4: VRM (Voltage Regulator Module) Socket (Reserved) .....9
JPS2: PS/2 Mouse Function Jumper .......................................9
COM/VGA/LINE Adapter............................................................9
DB1 Ð VGA Cable Connector ...............................................10
JACK1 Ð Line Out Connector ...............................................10
J1 Ð COM1 Connector...........................................................10
JP2 Ð COM2 Connector.........................................................10
J2* Ð Line Out Mainboard End Connector ...........................10
CPU Type Configuration ............................................................11
Step 1: Frequency Setting.....................................................11
Pentium Ð 75*/90*/100* CPU Settings (1.5 x clock).......11
Pentium Ð 100*/120*/133* CPU Settings (2.0 x clock)...12
Pentium Ð 150* CPU Settings (2.5 x clock) .....................13
Pentium Ð 180*/200* CPU Settings (3.0 x clock)............13

Step 2: CPU Single/Dual Voltage Setting............................14
Single Voltage CPU Setting .............................................14
Dual Voltage CPU Setting................................................14
Memory Configuration ...............................................................15
Cache Configuration ...................................................................16
Cache Size and RAM Locations ...........................................16
256K Pipelined Burst Cache Configuration .....................16
512K Pipelined Burst Cache Configuration .....................17
Multi I/O Port Addresses ............................................................17
Connectors ..................................................................................18
J1 Ð Keyboard Connector ......................................................18
PW1 Ð Power Supply Connectors .........................................18
J17 Ð Keylock & Power LED Connector ..............................18
J18 Ð Speaker Connector .......................................................18
J19 Ð Hardware Reset Control...............................................18
J2 Ð PS/2 Mouse Connector ..................................................19
J22 Ð Turbo LED Connector .................................................19
IDE1/IDE2 Ð On-board Primary/Secondary IDE HDD
Connectors .............................................................................19
J11 Ð HDD LED Connectors .................................................19
COM/VGA/LINE Connectors...............................................19
FDC1 Connector ...................................................................19
P1 Ð Parallel Port Connector .................................................19
J3 Ð Pipelined Burst SRAM Module Slot .............................19
J6, U22 Ð Universal Serial Bus Connector (Optional) ..........20
MPEG Connector Ð MPEG Daughter Board Connector
(Optional) ..............................................................................20
TT Connector Ð TV Tuner/Feature Connector (Optional) ....20
Line Out Ð Line Out Connector.............................................20
Line Out Cable ......................................................................20
IR Ð Infra Red Connector (Optional).....................................20
Chapter 3: BIOS Setup....................................................21
Standard CMOS Setup ................................................................22
BIOS Features Setup ...................................................................23
Chipset Features Setup................................................................26
Power Management Setup ..........................................................29
PNP/PCI Configuration Setup ....................................................31

Load Setup Defaults....................................................................32
Load BIOS Defaults....................................................................32
Integrated Peripherals .................................................................33
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 ................................................................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

1 Introduction
The 82430 HX/P54C PCI mainboard is a high-performance system board
that supports Intel P54CX family CPUs. You can install 256K to 512K
of external cache memory on the mainboard. The mainboard is fully
compatible with industry standards, and adds many technical
enhancements.
Key Features
¥ Supports P54CX family CPUs running at 75 ~ 200 MHz speeds,
Cyrix 6X86 CPUs running at P120+/P133+/P150+/P166+, and
AMD 5k86/K5 CPUs.
¥ Supports Dual voltage processor (optional)
¥ Supports SOCKET 7 &VRM for upgrade (optional)
¥ Integrated Second Level (L2) Cache Controller
Ñ Write Back Cache Modes and Direct Mapped Organization
ÑOn-board 256K/512K Pipeline Burst SRAMs Cache and
upgrade slot supports
¥ Integrated DRAM Controller
Ñ Supports 50/60/70ns Fast Page Mode (both symmetrical and
asymmetrical addressing) and EDO DRAM (72-pin SIMM)
Ñ On-board memory configurations from 4 to 256 Mbytes
Ñ Supports Error Checking and Correction (ECC) and Parity
Check (Optional)
¥On-board supports 11 Tag bit (cacheable range up to 512MB)
¥ Supports Pentium / P54C SMM Mode and CPU Stop Clock
¥ Supports ÒTable-FreeÓ DRAM configuration
¥Supports Universal Serial Bus Ñ USB (Optional)
¥ Compliant to PCI specifications v2.1
¥ Three 32-bit PCI slots (Masters) and Four ISA slots, 4-layer PCB
¥ System BIOS built-in NCR306 SCSI Card BIOS and ÒPlug and
PlayÓ function
¥ On-board built-in PCI Master IDE controller and floppy controller
¥ On-board supports for two high speed UARTS (w/i 16550 FIFO),
Multimode parallel port for SPP/EPP/ECP modes, PS/2 mouse
function, and IR function
¥ On-board supports FLASH Memory for easy upgrade BIOS
¥ Easy installation of Triones EIDE/ATAPI CD-ROM Bus Master
Drivers
¥ Onboard supports VGA, MPEG, and TV Tuner Function
(Optional).

2Introduction
VGA Chips Features
High-Performance Integrated Graphics/Video Accelerator
(S3 Trio 64V+)
¥ High-performance DRAM-based 64-bit graphics engine
¥ Integrated 24-bit RAMDAC with 135MHz output pixel rate and
programmable dual-clock synthesizer
¥ Unique S3 Streams Processor for hardware-assisted video playback
Advanced Playback Capabilities
¥ High-quality hardware-assisted video playback (up to 1024x768x16
bits/pixel)
¥ Support for India, Cinepak, and software accelerated MPEG-1 video
playback
S3 Scenic Highway Interface (H/W MPEG)
¥ Philips SAA7110/SAA7111 video digitizers
¥ S3 Scenic/MX2 MPEG-1 audio/video decoder, C-Cube CL-480
MPEG-1 decoder
High non-Interlaced Screen Resolution Support
¥ 1280x1024x256 clods at 75Hz refresh
¥ 1024x768x64K colors at 75Hz refresh
¥ 800x600x16.7M colors at 75Hz refresh
High-Performance Memory Interface
¥ 64-bit DRAM memory interface
¥ Supports standard fast page mode and EDO DRAMs (60MHz) and
1-cycle EDO DRAMs (50MHz)

Introduction 3
Table 1Ð1. Trio 64V+ Video Resolutions
Resolution 1MB DRAM 2MBs DRAM
640x480x16 ✓✓
640x480x256 ✓✓
640x480x64K ✓✓
800x600x16 ✓✓
800x600x256 ✓✓
800x600x64K ✓✓
1024x768x16 ✓✓
1024x768x256 ✓✓
1024x768x64K ✓
1152x864x256 ✓✓
1280x1024x16 ✓✓
1280x1024x256 ✓
1600x1200x16
(IL)
✓✓
1600x1200x256
(IL)
✓
Note: (IL) meansthat only the interlaced mode monitor can reach that
kind of resolutions.

4Introduction
Unpacking the Mainboard
The mainboard package contains:
¥ The 82430FX / P54C Mainboard
¥ This User's Guide
¥ One Triones IDE/ATAPI CD-ROM Bus Master Drivers 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 5
Mainboard Layout w/ Default Settings
1
13 9
7
10
11
12
18
17
2
3
5
6
8
3
14
16
4
18
2
19
20
20 20
20
21
15
21
21
22
Figure 1Ð1. Mainboard Layout
1. P54C/6x86 in ZIF socket 7 12. PS/2 Mouse Connector
2. Pipelined Burst SRAM 13. IDE1/IDE2 Connector
3. 82430 HX Chipset 14. Floppy Connector
4. Pipelined Burst SRAM Module
Slot
15. Parallel Port Connector
5. PnP FLASH BIOS 16. COM1/COM2/VGA/LINE
Connector
6. Real Time Clock (RTC) 17. Keyboard BIOS
7. ISA Slots 18. Super I/O Chipset
8. PCI Slots 19. S3 VGA Chips
9. SIMM Memory Bank 20. EDO DRAM (for Video)
10. 5V DC Power Connector 21. MPEG Connector (Optional)
11. Keyboard Connector 22. TV Tuner/Feature Connector
(Optional)

6Introduction
Default settings are as follows: Pentium 100MHz CPU, 256K W/B
Pipelined Burst cache, Address Pipeline Enabled, On-board Local
Bus IDE Enabled, FDC Enabled, 2 high speed UARTS Enabled (w/
16550 FIFO), 1 EPP/ECP port (ECP + EPP mode).
#1
JP27
JP30
586
CPU
Family
82439 HX
82371 SB
RTC
#4 #3#2
#1#2#3
#4 #3 #2 #1
KB BIOS
J3
J18J17 J19 JP11
J22
JP32 JP33
JPS2
JP3
Super I/O
CHIP
DRAM
BANK
PCI SLOT
IDE1 IDE2
ISA SLOT
16Kx8 TAG 16Kx8 TAG
P.B. SRAM
32k x 32
P.B. SRAM
32k x 32
Pipelined Burst SRAM Module Slot
FLASH
BIOS
FDC1
P1
PW1
J1
J2
11
Super I/O
CHIP
JP2
TT CON
MPEG CON
COM/VGA/LINE CON
256K16–40 256K16–40
S3/765
256K16–40 256K16–40
MPEG
CON
MPEG CON
JP31
Keylock SPK ResetHDD LED
JP5
JP12
JP13
JP10
JP35
Line Out
TB LED
USB
J6 J8
1
IR
JP24
JP26
JP29
JP36
1
4
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
Factory Set Jumpers
The following jumpers are set at the factory as below.
Jumpers Factory settings
JP1, JP14, JP15, JP34 Factory fixed at 2Ð3
JP2, JP35 Factory setting at short
JP3: Display Type
Set JP3 to configure the mainboard for use with either a color or
monochrome monitor.
Monitor Type JP3
Monochrome
1 2
EGA/VGA
(default)
1 2
JP10: Sleep Switch Connector Enable/Disable
Toggle this jumper to force the system into power saving (Green) mode.
Any hardware IRQ signal makes the system wakeups.

8Hardware Setup
JP32, JP33: Bus Fraction Core/Bus Ratio Select
Set this jumper according to your CPU clock.
Note: For Pentium X/ YMHz, Xstands for CPU core clock, Ystands
for bus clock.
Ratio P54CX Family JP32, JP33
3/2
(Default)
Pentium Ð 75, 90, 100MHz
AMD 5k86 (SSA5) Ð P75, P90,
P100MHz
AMD 5k86 (K5) Ð P120, P133MHz
JP32
JP33
2/1 Pentium Ð 120, 133MHz
Cyrix Ð P120+, P133+, P150+,
P166+MHz
AMD 5k86 (K5) Ð P150, P166MHz
JP32
JP33
5/2 Pentium Ð 150, 166MHz
JP32
JP33
3/1 Pentium Ð 180, 200MHz
JP32
JP33
JP5: CMOS Clear Jumper
Clear the CMOS memory by momentarily shorting this jumper; then
open the jumper to retain new settings.
CMOS Setting JP5
Retain CMOS data
(default)
1 2
Clear CMOS data
1 2

Hardware Setup 9
J4: VRM (Voltage Regulator Module) Socket (Reserved)
VRM socket is dedicated for 2.5V CPU to use. It converts 3.3V to 2.5V
for the advance high speed P54CX.
JPS2: PS/2 Mouse Function Jumper
Set PS/2 mouse function enabled or disabled.
PS/2 Mouse Function JPS2
Disabled
(default)
1 2
Enabled
1 2
Note: The IRQ12 is dedicated to PS/2 mouse when choose enabled of
PS/2 Mouse Function.
COM/VGA/LINE Adapter
Attach COM/VGA/LINE adapter to the mainboard as the figure showing
below to enable COM1/COM2/VGA/LINE OUT function.
COM/VGA/LINE CON.
JP2
J2
DB1
JACK1
J1
JP1
KB Port
M/B

10 Hardware Setup
Function of every connector on the COM/VGA/LINE adapter is
described below:
DB1 – VGA Cable Connector
Attach the cable of VGA monitor to this connector.
JACK1 – Line Out Connector
Attach Line-In cable of the external speaker system device to this jack.
J1 – COM1 Connector
Attach COM1 cable to this connector.
JP2 – COM2 Connector
Attach COM2 cable to this connector (this cable is provided by the
mainboard manufacture.)
J2* – Line Out Mainboard End Connector
Attach 4-pins linking cable to this connector. The other end of this cable
is connected to JP9 of the mainboard (this cable is provided by the
mainboard manufacture.)
Note: Use this cable only when your hardware MPEG is installed.
Check with your mainboard supplier for more MPEG information.

Hardware Setup 11
CPU Type Configuration
Set the mainboardÕs CPU jumpers JP12, JP13, JP32, and JP33 according
to CPU type as described below, and then set JP27, JP30 for the proper
voltage of the CPU.
❑Step 1: Frequency Setting
Pentium – 75*/90*/100* CPU Settings (1.5 x clock)
AMD K5 – PR75/PR90/PR100/PR120/PR133 Settings (1.5 x clock)
586
CPU
Family
Pipelined Burst SRAM Module Slot
JP12
JP13
JP32 JP33
Pentium (P54CX) – 75*/50 MHz
AMD K5 (SSA5) – PR75/50 MHz
(Red Caps)
JP12
JP13
Pentium (P54CX) – 90*/60 MHz
AMD K5 (SSA5) – PR90/60 MHz
AMD K5 – PR120/60 MHz
(Red Caps)
JP12
JP13
AMD 5k86 (SSA5) – P90/55 MHz
AMD 5k86 (K5) – P100/55 MHz
(Red Caps)
JP12
JP13
Pentium (P54CX) – 100*/66 MHz
AMD K5 (SSA5) – PR100/66 MHz
AMD K5 – PR133/66 MHz
(Red Caps)
JP12
JP13
Figure 2Ð1Ð1. CPU Jumper Settings
Note: You must equip the CPU with a fan and heat sink for system
stability.

12 Hardware Setup
Pentium – 100*/120*/133* CPU Settings (2.0 x clock)
Cyrix 6x86 – P120+/P133+/P150+/P166+CPU Settings (2.0 x clock)
AMD K5 – PR150/PR166 CPU Settings (2.0 x clock)
586
CPU
Family
Pipelined Burst SRAM Module Slot
JP12
JP13
JP32 JP33
Pentium (P54CX) – 100*/50 MHz
Cyrix 6x86 – P120+/50 MHz
(Red Caps)
JP12
JP13
Pentium (P54CX) – 120*/60 MHz
Cyrix 6x86 – P150+/60 MHz
AMD K5 – PR150/60 MHz
(Red Caps)
JP12
JP13
Cyrix 6x86 – P133+/55 MHz
(Red Caps)
JP12
JP13
Pentium (P54CX) – 133*/66 MHz
Cyrix 6x86 – P166+/66 MHz
AMD K5 – PR166/66 MHz
(Red Caps)
JP12
JP13
Figure 2Ð1Ð2. CPU Jumper Settings
Note: 1. You must equip the CPU with a fan and heat sink for system
stability.
2. Cyrix 6x86 Ð P166+has to be matched with 60ns DRAMs.

Hardware Setup 13
Pentium – 150* CPU Settings (2.5 x clock)
586
CPU
Family
Pipelined Burst SRAM Module Slot
JP12
JP13
JP32 JP33
Pentium (P54CX) – 150*/60 MHz
(Red Caps)
JP12
JP13
Pentium (P54CX) – 166*/66 MHz
(Red Caps)
JP12
JP13
Figure 2Ð1Ð3. CPU Jumper Settings
Note: You must equip the CPU with a fan and heat sink for system
stability.
Pentium – 180*/200* CPU Settings (3.0 x clock)
586
CPU
Family
Pipelined Burst SRAM Module Slot
JP12
JP13
JP32 JP33
Pentium (P54CX) – 180*/60 MHz
(Red Caps)
JP12
JP13
Pentium (P54CX) – 200*/66 MHz
(Red Caps)
JP12
JP13
Figure 2Ð1Ð4. CPU Jumper Settings
Note: You must equip the CPU with a fan and heat sink for system
stability.

14 Hardware Setup
❑Step 2: CPU Single/Dual Voltage Setting
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
P54CX, AMD-K5-PRxxxBx, AMD-K5-PRxxxCx, AMD-K5-PRxxxFx,
and Cyrix 6x86. Refer to the following figure to set these CPUsÕ
voltage:
JP27
JP30
586
CPU
Family
Pipelined Burst SRAM Module Slot
JP24
JP26
JP29
JP36
1
4
JP27
JP30
3.3V CPU
JP27
JP30
3.45V ~ 3.6V CPU
Figure 2Ð2Ð1. Single Voltage CPU
Dual Voltage CPU Setting (Optional)
Dual voltage CPUs are designed to use different voltage for VIO and
VCore and they include Intel P55CX, AMD-K5-PRxxxHx, AMD-K5-
PRxxxJx, AMD-K5-PRxxxKx, AMD K6, Cyrix 6x86L, and Cyrix M2.
Refer to the following figure to set these CPUsÕ voltage: