SOYO SC-5EA5 Quick start guide

SC-5EA5

SURIA ETEQ 512Kb PB Cache Mainboard

User & Technical Reference Giude

Factory Part # 5EA5/A5C

TableofContents

Chapter1:Introduction……….…………..….………..1

KeyFeatures………………………………..…………………1

UnpackingtheMainboard…………………………………2

ElectrostaticDischargePrecautions……………………….2

MainboardLayoutW/Default Settings……..…………………3

RemarksontheCyrixandIBMP200 CPUs……..………….5

VoltageSettingList……………………………………………5

Chapter2:HardwareSetup.………………………..6

Jumpers…..…………………………………..………………6

JP5:CMOSClearJumper……………..…………………..6

J25:EMIGroundPin……………………………….6

JP16:PCIBusAsynchronous/SynchronousJumper…..7

CPUTypeConfiguration……………………………………8

Step1:FrequencySetting…………………………………..8

P54C/P55C-75/90/100 CPUSettings(1.5xclock)…….8

P54C/P55C-100/120/133 CPUSettings(2.0xclock)….9

P54C/P55C-150/166 CPUSettings(2.5xclock)……..10

P54C/P55C-180/200 CPUSettings(3.0xclock)……..10

3.5x clockCPUSettings(233 MHzCPUs)….……..11

4.0x clockCPUSettings(266 MHzCPUs)…………11

Step2:CPUSingle/DualVoltageSetting……..………12

SingleVoltageCPUSetting……….………………12

DualVoltageCPUSetting………………………..13

MemoryConfiguration……………………………………..13

MemoryConfigurationTable……………………………..14

RAMBankInstallationNotice…………..…………….14

CacheConfiguration……………………………………….14

CacheSizeandRAMLocations………………………….14

Multi I/OPortAddresses…………………………………..15

Connectors…………..………………………………………….15

COM1,COM2-COM1/COM2Connectors…………………15

FDCConnector…………………………………………..…15

J19-HardwareResetControl………………………………..15

J24-HDD LEDConnectors…………………………………15

CN5-IRConnector……………………………………..16

CN2-KeyboardConnector……………………………..16

J17-Keylock&PowerLEDConnector……………………..16

IDE1/IDE2-OnboardPrimary/SecondaryIDEConnectors.16

CN1-PS/2MouseConnector…………………………..16

PRT-ParallelPortConnector…………………………..16

ATPowerConn.-ATpowersupplyconnector……..16

J23:SleepSwitchConnectorEnable/Disable…………….17

CN3-UniversalSerialBusConnectors……………………17

J18 speaker………………………………………………..17

Chapter3:BIOSsetup……..….………..……….……..18

StandardCMOSSetup……….…….…….… … .………19

BIOSFeaturesSetup………….…..………….………21

ChipsetFeaturesSetup…..……..……………..…….…24

PowerManagementSetup ………....………………2 6

PNP/PCIConfigurationSetup…………..… … .………29

LoadSetup Defaults………..………..….……………31

LoadBIOSDefaults………..….………...…..………31

IntegratedPeripherals……………...……….………32

SupervisorPassword...………………..………………34

USERPassword…….………….…….………………35

IDEHDD AutoDetection…….………..…….………36

Appendix……….…………….…………..……….… … ..37

AppendixA:JumperforCyrix/IBMCPU(J100)……..…..37

AppendixB:QuickInstallationGuide..………..….…38

1 Introduction

The EQ82C661X PCI mainboard is a high-performance AT form-factor

system board that supports P54C/P55C family CPUs. You can order

512K of 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 90~200 MHz

speeds; Cyrix/IBM CPUs running at PR120+~PR200+speeds;

and AMD K5/K6 CPUs running at PR75 ~ PR233 speeds

Ñ Two kinds of mainboards are available: one is the Normal edition

which supports above listed CPUs and the other is the IBM CPU

attached edition which supports the IBM 6x86 P200+CPU only

ÑSupports SOCKET 7 for upgrade

Ñ Supports P54C/P55C series SMM Mode and CPU Stop Clock

¥ L2 Cache Controller

Ñ Write Back Cache Modes and Direct Mapped Organization

Ñ On-board 512K Pipeline Burst SRAMs Cache

¥ DRAM Controller

Ñ Supports FPM/EDO/Burst EDO/Synchronous Ð DRAM

Ñ Supports 1 stripsof 8/16/32 MB 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 Three 32-bit PCI slots (Masters) and four ISA slots, 4-layer PCB

ÑSupports Universal Serial Bus Ñ USB

¥ Peripheral Controller

Ñ System BIOS built-in NCR805 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

2Introduction

Unpacking the Mainboard

The mainboard package contains:

¥ The EQ82C661X Mainboard

¥ This UserÕs Guide

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

2 2

3 3

17 16

18 15

1212

710

Figure 1Ð1. Mainboard Layout

1. ZIF socket 7 (for P54C/P55C) 10. SIMM Bank

2. EQ82C661X Chipset 11. Floppy Connector

3. Pipelined Burst SRAM 12. IDE1/IDE2 Connector

4. Super I/O Chip 13. Parallel Port Connector

5. PnP FLASH BIOS 14. COM1/COM2 Connector

6. TAG SRAM 15. AT Power Connector

7. ISA Slots 16. KB Connector

8. PCI Slots 17. PS/2 Mouse Connector

9. Unbuffered DIMM Bank 18. 3 Volt. Lithium Battery

4Introduction

Figure1-2.MainboardDefault Setting

Important:Makesurethesystem iswell ventilatedto prevent

overheating andensuresystemstability.

Default settingsareasfollows:Pentium133MHz(P54C)CPU,512K

PipelinedBurstcache,On-boardPCIE- IDE Enabled,2highspeed

UARTSEnabled(w/16550 FIFO),1EPP/ECPport(ECP+EPP mode),

5V DRAM/3.3V DIMM,andATpowersupply.

USB

JP25

1IR

CN5

JP31

586CPU

Family

JP13

JP14

JP16

JP12

JP11

JP10

EQ6619

JP304

64Kx32 64Kx32

EQ6617 EQ6617

JP5

JP32

CN1CN2

FLASHBIOS

EQ6618

J100

JP15

(KB)

(PS/2

Introduction

Remarkson the Cyrixand IBMP200

CPUs

PleasenotethatifyouuseaCyrixorIBMP200+CPU,youwill havetosetthe

frequencyto75MHz.Youwill alsohavetosetJP16,thePCIbusfrequency

jumpertoasynchronoustohavethePCIbusrunon32MHz,inordertoavoid

problemswithadd-oncards.IfyouchoosetorunthePCIbusonahigher

frequency,pleaseuseonlyhigh-endadd-oncardsthatarespecifiedtofunction

onhigherbusfrequencies.Pleasenotethatusinga75MHzbusclockalsoplaces

higherdemandsontheDRAMmain-memory,thereforeonlyusehigh-end

SIMM/DIMM moduleswhenthisisthecase.

Voltage settingslist

Jumpers30,31 and32 settheprocessorvoltage.Ifyouareusingasinglevoltage

processorclosejp31 andopenjp30.Jp31 shortstheprocessorVcorevoltagepins

totheViopinswhenclosed.IfyouuseadualvoltageCPU,openjp31 andclose

jp30.

Jp32 setsthevoltage,pleaserefertothefollowingtable:

voltage JP32

1-2 3-4 5-6 7-8

3.5Vclose close close close

3.4Vclose close closeopen

3.3Vclose closeopenclose

3.2Vclose closeopenopen

3.1Vcloseopenclose close

3.0Vcloseopencloseopen

2.9Vcloseopenopenclose

2.8Vcloseopenopenopen

2.7Vopenclose close close

2.6Vopenclose closeopen

2.5Vopencloseopenclose

2.4Vopencloseopenopen

2.3Vopenopenclose close

2.2Vopenopencloseopen

2.1Vopenopenopenclose

2.0Vopenopenopenopen

2 Hardware Setup

This chapter is designed for Normal edition mainboard use only and it

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)

Clear CMOS data

J25: EMI Ground Pin

J25 is designed for eliminating the EMI signals. Short or open J25 when

is needed.

Hardware Setup 7

JP16: PCI Bus Asynchronous/Synchronous Jumper

Asynchronous and synchronous (default) PCI bus frequency settings are

available.

PCI Bus Setting JP16

Asychronous

Synchronous

Divides the host bus by 2 to get the Asynchronous setting, and sets the

PCI bus on 32MHz to get the synchronous setting. Set JP16 to

Synchronous mode when the system is unstable.

Host Bus

(CPU Bus) PCI Bus Frequency

(Synchronous) PCI Bus Frequency

(Asynchronous)

50 MHz* 25 MHz 32 MHz

55 MHz* 27.5 MHz 32 MHz

60 MHz 30 MHz 32 MHz

66 MHz 33.3 MHz 32 MHz

75 MHz** 37.5 MHz 32 MHz

*: Do not use Asynchronous setting when the host bus frequency is

50MHz or 55MHz.

**: Do not use Synchronous setting when the host bus frequency is 75

MHz.

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