SOYO SC-5EH5 Use and care manual

Ê
SC-5EH5
SURIA ETEQ Chipset AT, PCI Mainboard
User’s Guide & Technical Reference

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
JP22: CPU Burst Mode Jumper ........................................... 6
JP4: Smart Detect CPU Voltage Auto/Manual Jumper ....... 6
JP2, JP6: Power Supply Selection Jumpers ......................... 7
JP37: DIMM Voltage Jumper .............................................. 7
JP7, JP8 : Host Bus Frequency Selection Jumper ................ 7
JP9, JP10: SDRAM Frequency Selection Jumper ............... 8
JP30: Voltage Jumper Settings ............................................. 8
CPU Type Configuration ............................................................ 9
P54C/P55C Series CPUs Settings ......................................... 9
P54C/P55C Series CPUs Settings (Continued) ................... 10
AMD K5/K6 Series CPUs Setting ...................................... 11
Cyrix 6x86/L/MX Series CPUs Setting .............................. 12
Memory Configuration ............................................................. 13
Memory Configuration Table.............................................. 13
Cache Configuration ................................................................. 13
Cache Size and RAM Locations ......................................... 13
Multi I/O Port Addresses .......................................................... 14
Connectors ................................................................................ 14
J25 Ð Front Panel Connectors.............................................. 14
HD LED Ð IDE Device LED Connector ............................. 15
KB_LOCK Ð Keylock & Power LED Connector ............... 15
RESET Ð Hardware Reset Switch Connector ..................... 15
SPEAK Ð PC Speaker Connector........................................ 15
TB LED Ð Turbo LED Connector ....................................... 15
PW2 Ñ ATX Power Supply On/Off Switch Connector
(Momentary Type)............................................................... 15
COM1/COM2 Ð COM1/COM2 Serial Port Connectors ..... 15
PRT Ð Parallel Port Connector ............................................ 15
JP44 Ð Wake-On-LAN (WOL) Header ............................... 15
PS1 Ð PS/2 Mouse Connector ............................................. 16
USB1 Ð USB Ports Connectors ........................................... 16
AT PWR (CN1)Ð AT Power Supply Connectors................ 17
IDE1/IDE2 Ð Primary/Secondary IDE Device Connectors. 17

iv
ATX PWR (P1)Ð ATX Power Supply Connector ............... 17
JP12 Ð CPU Cooling Fan Connector ................................... 18
IR Ð Infrared Device Connector .......................................... 18
Chapter 3: BIOS Setup.................................................. 19
Standard CMOS Setup .............................................................. 20
BIOS Features Setup ................................................................. 22
Chipset Features Setup.............................................................. 25
Power Management Setup ........................................................ 27
PNP/PCI Configuration Setup .................................................. 30
Load Setup Defaults.................................................................. 32
Load BIOS Defaults.................................................................. 32
Integrated Peripherals ............................................................... 33
Supervisor Password ................................................................. 36
User Password ........................................................................... 37
IDE HDD Auto Detection ......................................................... 38
Quick Installation Guide ................................................ 39
Motherboard Layout............................................................ 39
Memory Configurations ...................................................... 40
Connectors and Jumper Settings ......................................... 40
Jumper Settings for CPU Voltage & Frequency ................. 40

1 Introduction
The EQ82C663X PCI mainboard is a high-performance AT form-factor
system board that supports P54C/P55C family CPUs. This 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/6x86MX CPUs running at
PR150~PR266 speeds; and AMD K5/K6 CPUs running at
PR90~PR233 and K6 3D speeds
Ñ Supports Socket 7 for upgrade
Ñ Supports P54C/P55C series SMM Mode and CPU Stop Clock
Ñ Supports MMX technology and Smart Detect CPU Voltage
function
¥ Supports CPU overheat alarm function (70¡C)
¥ L2 Cache Controller
Ñ On-board 512K/1M Pipeline Burst SRAMs Cache
¥ DRAM Controller
Ñ Supports 2 strips of 72-pin FPM/EDO (4/8/16/32MB) SIMM
(symmetrical/ asymmetrical addressing)
Ñ Supports 2 strips of 168-pin FPM/EDO/SDRAM (8/16/32/64/128
MB) 3.3V Unbuffered DIMM
Ñ Memory configuration for DIMM is from 8MB to 256 MB; for
SIMM is from 8MB to 64MB
¥ BUS Controller
Ñ Complies to PCI specifications v2.1
Ñ Three 32-bit PCI slots, three ISA slots, and one AGP slot
¥ Peripheral Controller
Ñ System BIOS built-in NCR810 SCSI Card BIOS and ÒPlug and
PlayÓ function
Ñ Onboard PCI Master IDE controller and floppy controller
Ñ Onboard super I./O chip supports two high speed UARTS (w/i
16550 FIFO), one ECP/EPP/SPP multi-mode parallel port, and
one PS/2 mouse port
Ñ Onboard FLASH Memory for easy upgrade BIOS
Ñ Easy installation of ETEQ E-IDE/ATAPI Bus Master Drivers
included on CD
Ñ Supports IR connector
ÑSupports Universal Serial Bus (USB)
Ñ AT/ATX power suply connectors available.

2Introduction
Unpacking the Mainboard
The mainboard package contains:
¥ The EQ82C663X Mainboard
¥ One CD (including UserÕs Manual, Drivers, and Utilities)
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
22
78
5
20 4
19 18 17
13
11
14
14
16 15
9
10
6
3
3
1
1212
21
Figure 1Ð1. Mainboard Layout
1. ZIF socket 7 12. IDE1/IDE2 Connectors
2. EQ82C663X Chipset 13. Parallel Port Connector
3. Pipelined Burst SRAM 14. COM1/COM2 Connector
4. Super I/O 15. ATX Power Connector
5. PnP FLASH BIOS 16. AT Power Connector
6. TAG SRAM 17. KB Connector
7. ISA Slots 18. PS/2 Mouse Connector
8. PCI Slots 19. USB Connectors
9. Unbuffered DIMM Banks 20. 3 Volt. Lithium Battery
10. SIMM Banks 21. AGP Port
11. Floppy Connector

4Introduction
Default settings are as follows: Pentium 133MHz 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
SIMM/3.3V DIMM, and AT power supply.
USB1
1
#1#2#3
ISA SLOT
#1#2#3
PCI SLOT
AGP PORT
IDE1 IDE2
FDCPRT
COM2 COM1
SMC
37C669
3V
Lithium
Battery
Flash BIOS
ATX PWR
K/B
Conn.
PS/2
Conn.
#1#2
SIMM SLOT
#1#2
DIMM SLOT
TAG 16kx8
1
3
5
JP37
SW1
654231
ON
P.B. SRAM
64Kx64
P.B. SRAM
64Kx64
EQ82C
6638AT
EQ82C6629
1
2
3
JP5
IR1
Socket 7
(for 586 CPUs)
SPK
RST PW2
HDD
LED
Turbo
LED
J25
JP30
1357911
JP4
JP12
+–
Power
LED
Keylock
* If the board is
5EHM (1M Cache)
then it should have
two P.B. SRAM.
(Optional)
1
1
2
3
JP44
AT PWR
1
2
3
JP22
3
2
1
3
2
1
JP2
JP6
1
1
2
3
JP7
1
2
3
JP8
1
2
3
JP9
123
JP10
Figure 1Ð2. Regular Mainboard Default Setting
Note: 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
This mainboard uses different colors of jumper caps to identify different
functions of the jumpers:
Jumper
Cap Color White Black Blue Red Green Yellow
Function clear
CMOS
CPU
burst
mode
Power
supply
selection
Smart
Detect
CPU
voltage
DIMM
voltage
CPU
Voltage
Host Bus
& SDRAM
Frequency
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
2
3
Clear CMOS data
1
2
3

6Hardware Setup
JP22: CPU Burst Mode Jumper
Due to different designs, there are two kinds of CPU burst modes:
Interleave Burst and Linear Burst. Select the correct mode according to
the CPU you are using.
CPU Burst Mode JP22
Interleave
(for P54C/P55C and AMD
K5/K6 CPU)
1
2
3
Linear
(for Cyrix 6x86/L/MX CPU)
1
2
3
When using a Cyrix series of CPUs, follow the below procedures after
select the burst mode:
1. Press<Delete> key to enter the BIOS setup menu during the boot-up,
2. Select ÒChipset Features SetupÓ,
3. Set the ÒLinear BurstÓ to ÒEnabledÓ,
4. Press <Esc> to go back to the main menu and choose ÒSave & Exit
SetupÓ to reboot your computer.
JP4: Smart Detect CPU Voltage Auto/Manual Jumper
For P54C/P55C and Cyrix 6x86/L CPUs, this board automatically
detects and adjusts the CPU voltage to the proper voltage. JP4 is
reserved for a few older non-Intel CPUs which can not be detect
correctly. If you run into problems while detecting the voltage of older
CPUs, remove the jumper cap to correct it.

Hardware Setup 7
JP2, JP6: Power Supply Selection Jumpers
These two jumpers let you select either the AT or the ATX power
supply. Use only one power supply at a time on this mainboard.
JP2 JP6
AT Power Supply
(default)
321
321
ATX Power Supply
321
321
JP37: DIMM Voltage Jumper
There are two kinds of DIMM voltages in the marketÑ3.3V and 5VÑ
and most of SDRAM DIMMS are 3.3V. Choose the correct voltage
according to the DIMM that you are using.
DIMM Voltage JP37 Setting
3.3V
(default)
2
4
6
1
3
5
5V
2
4
6
1
3
5
Caution: Do not change this jumper to 5V setting unless you are
sure that your DIMMs are 5V. The wrong setting may
cause the system malfunction.
JP7, JP8 : Host Bus Frequency Selection Jumper
JP7 JP8 CPU Host Bus
Frequency AGP Host Bus Frequency PCI Host Bus Frequency
321
(default)
321
(default)
66 66 33
321 321
100 66 33