SOYO SY-5EHM Use and care manual

SY-5EHM/5EH5
Super 7 TM
Mainboard
************************************************
Pentium® Class CPU supported
ETEQ82C663 PCI/AGP Mainboard
AT Form Factor
************************************************
User's Guide
&
Technical Reference

SOYO™SY-5EHM/5EH5
ii
About This Guide
This User's 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 1998, Soyo Computer Inc. All rights reserved. This manual is copyrighted
by Soyo Computer Inc. You may not reproduce, transmit, transcribe, store in a
retrieval system, or translate into any language, in any form or by any means,
electronic, mechanical, magnetic, optical, chemical, manual or otherwise, any part of
this publication without express written permission of Soyo Computer Inc.
Trademarks
Soyo is a registered trademark of Soyo Computer Inc. All trademarks are the property
of their owners.
Disclaimer
Soyo Computer Inc. makes no representations or warranties regarding the contents
of this manual. We reserve the right to revise the manual or make changes in the
specifications of the product described within it at any time without notice and without
obligation to notify any person of such revision or change. The information contained
in this manual is provided for general use by our customers. Our customers should be
aware that the personal computer field is the subject of many patents. Our customers
should ensure that their use of our products does not infringe upon any patents. It is
the policy of Soyo Computer Inc. to respect the valid patent rights of third parties and
not to infringe upon or assist others to infringe upon such rights.
Restricted Rights Legend
Use, duplication, or disclosure by the Government is subject to restrictions set forth in
subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause
at 252.277-7013.
Product Rights
Products mentioned in this manual are mentioned for identification purpose only.
Product names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies.
If you need any further information, please come to our home page on the Internet.
The address is "http://www.soyo.com.tw".
Edition: September 1998
Version 2.0
5EHM/5EH5 SERIAL
FC
CTested To Comply
With FCC Standards
FOR HOME OR OFFICE USE
POST CONSUMER
RECYCLED PAPER
100%

Table of Contents SY-5EHM/5EH5
iii
Table of Contents
SY-5EHM/5EH5 MAINBOARD LAYOUT ............................................. 1
CHAPTER 1 INTRODUCTION........................................................... 2
1-1 KEY FEATURES ............................................................ 2
1-2 HANDLING THE MAINBOARD...................................... 5
1-3 ELECTROSTATIC DISCHARGE PRECAUTIONS......... 5
CHAPTER 2 HARDWARE SETUP.................................................... 6
2-1 PREPARATIONS......................................................6
2-2 UNPACKING THE MAINBOARD...............................7
2-3 INSTALLATION GUIDE.............................................8
CHAPTER 3 BIOS SETUP UTILITY................................................ 36
3-1 STANDARD CMOS SETUP......................................... 38
3-2 BIOS FEATURES SETUP............................................ 41
3-3 CHIPSET FEATURES SETUP..................................... 47
3-4 POWER MANAGEMENT SETUP................................ 50
3-5 PNP/PCI CONFIGURATION SETUP........................... 55
3-6 LOAD SETUP DEFAULTS ........................................... 58
3-7 LOAD BIOS DEFAULTS .............................................. 58
3-8 INTEGRATED PERIPHERALS .................................... 59
3-9 SUPERVISOR PASSWORD........................................ 63
3-10 USER PASSWORD...................................................... 64
3-11 IDE HDD AUTO DET1ECTION.................................... 65
CHAPTER 4 DRIVERS INSTALLATION.......................................... 66

Mainboard Features SY-5EHM/5EH5
1
SY-5EHM/5EH5 Mainboard Layout
SY-5EHM/5EH5 Platform
Flash BIOS
JP44
1
3
IR1
5
1
JP5
1
3
AGP Slot
ISA Slot #1
ISA Slot #2
ISA Slot #3
IDE 1 IDE 2
PRT 1
COM 1
COM 2
FDC
KB
Connector
PS/2Mouse
Connector
ATX Power
AT Power
1
1
1
1
1
1
1
3
1
4
5
9
SIMM 1
SIMM 2
3V
Lithium
Battery
6
5
4
3
2
1
EQ82C6629
1
USB1
RST
PW2
SPK
Keylock
Power
LED
Turbo
LED
HDD LED
_
+
ETEQ
EQ82C6638
SW1
11
9
7
5
3
1
JP30
P.B. SRAM
64Kx64
P.B. SRAM
64Kx64
(Optional)
TAG SRAM
5
3
1
1
3
1
3
1
3
JP10
JP4
JP37
JP9
JP22
JP7
DIMM 2
DIMM 1
SMC
FDC37C669Q
*
for model 5EHM only
(1 MB Cache) featuring
two P.B. SRAM.
JP12
PCI Slot #2
PCI Slot #1
PCI Slot #3
2
4
6
8
10
12
ETEQ
ON

Introduction SY-5EHM/5EH5
2
Chapter 1
INTRODUCTION
The SY-5EHM/5EH5 AGP/PCI mainboard is a high-performance AT
form-factor system board. SY-5EHM/5EH5 uses the ETEQ82C663
AGP/PCI Chipset technology and supports Pentium® class
processors. This mainboard is fully compatible with industry
standards and adds many technical enhancements.
1-1 KEY FEATURES
lCPU
ØSupports Intel Pentium Processor P54C/P55C series
CPUs featuring speeds of 100-233 MHz
ØSupports Cyrix 6x86/6x86L/6x86MX CPUs with PR150-
PR266 speeds and Cyrix M II-300-350 CPU
ØSupports AMD K5 CPUs running at PR100-PR166 speeds,
AMD K6 CPUs running at speeds of 166-300 MHz speeds,
and AMD K6-2 266-350 CPU
ØFeatures Socket 7 for CPU easy upgrade
ØSupports P54C/P55C series SIMM Mode and CPU Stop
Clock
lL2 Cache Controller
ØOn-board 512KB(SY-5EH5) or 1MB (SY-5EHM) Level 2
Pipeline Burst SRAM Cache
lDRAM Controller
ØSupports 2 strips of 168-pin SDRAM unbeffured DIMM
2 x 168-pin DIMM banks support 8/16/32/64/128/256 MB
unbuffered DIMM modules
ØSupport 2 strips of 72-pin FPM/EDO SIMM 2 x 72-pin
SIMM banks support 8/16/32/64 MB SIMM modules
ØMemory configuration:

Introduction SY-5EHM/5EH5
3
uSystem memory: 8MB to 640MB with EDO/SDRAM
SY-5EHM/5EH5 PLATFORM FEATURES
Board Size 4-layer PCB, 19x30.5cm(7.5”x12”), AT Form Factor
Socket 7 Socket for Pentium® class CPUs
with Host Bus frequency of 66/100MH; Supports:
ØIntel Pentium® Processors P54C/P55C (100-233MHz)
ØCyrix 6x86™(PR166+-PR200+),
Cyrix 6x86 MX™(PR166-PR266) and Cyrix M II™
(300~350)
ØAMD K5™(PR100-PR166), and AMD K6™(166-300)
and AMD K6™-2 (266~350)
Chipset ETEQ82C663 PCI/AGP Bus Chipset
ATX Power 20-pin Male Connector
JP12 3-pin CPU Cooling Fan Connector
Memory DIMM Bank (DIMM1 & DIMM2)
Ø168-pin Unbuffered EDO/SDRAM DIMM Module
ØSupports 8~256MB DIMM in each Bank
ØSupports ECC configuration
SIMM Bank (Bank1,2)
Ø72-pin SIMM Modules
BIOS System BIOS built-in, Award BIOS
ØAPM, ACPI and "Plug-and-Play" function
ØSupports multiple-boot function
ØDMI utility
PCI Slots 3 x 32-bit Bus Mastering Slots
ISA Slots 3 x 16-bit ISA Slots
IDE1, IDE2 2 x 40-pin Bus Mastering E-IDE/ATAPI Ports
ØIDE1: Primary IDE Device Connector
ØIDE2: Secondary IDE Device Connector
ØSupports Ultra DMA/33
FDC 1 Floppy Disk Drive (FDD) Port
(Supports 1.2MB/1.44MB/2.88MB and LS120/3-mode FDD)
SIR 5-pin Serial Infrared Device Connector
Keylock 5-pin KeyLock Connector
Reset 2-pin Reset Switch Connector
Speaker 4-pin PC Speaker Connector
TB_LED 2-pin Turbo LED Connector
HDD_LED 2-pin IDE Device LED Connector
PWRBT ATX Power On/Off Switch 2-pin Connector

Introduction SY-5EHM/5EH5
4
JP5 CMOS Clear Jumper
JP7 CPU bus clock frequency Jumper
JP9, JP10 SDRAM frequency Jumpers
JP30 CPU Voltage Selection Jumper
JP22 CPU Burst Mode Jumper
JP37 DIMM Voltage Jumper
JP44 WOL (Wake-On-LAN) 3-pin Connector
SW1 CPU frequency Settings Jumper

Introduction SY-5EHM/5EH5
5
1-2 HANDLING THE MAINBOARD
To avoid damage to your mainboard, follow these simple rules while
unpacking:
ØBefore handling the mainboard, ground yourself by grasping an
unpainted portion of the system's metal chassis.
ØRemove the mainboard from its anti-static packaging. Hold the
mainboard by the edges and avoid touching its components.
ØCheck the mainboard for damage. If any chip appears loose,
press carefully to seat it firmly in its socket.
Warning: Do not apply power if the mainboard appears
damaged. If there is damage to the board, contact your
dealer immediately.
1-3 ELECTROSTATIC DISCHARGE PRECAUTIONS
Make sure to ground yourself before handling the mainboard or
other system components. Electrostatic discharge can easily
damage the components. Note that you must take special
precautions when handling the mainboard in dry or air-conditioned
environment.
To protect your equipment from electrostatic discharge, take the
following precautions:
ØDo not remove the anti-static packaging until you are ready to
install.
ØGround 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.)
ØFrequently ground yourself while working or use a grounding
strap.

Hardware Setup SY-5EHM/5EH5
6
Chapter 2
HARDWARE SETUP
Congratulations on your purchase of SY-5EHM/5EH5 Super 7 TM
Mainboard. You are about to install and connect your new
mainboard.
Note: Do not unpack the mainboard from its protective
anti-static packaging until you have made the following
preparations.
2-1 Preparations
Gather and prepare all the following hardware equipment to
complete the installation successfully:
1. Pentium processor with CPU cooling fan.
2. DIMM memory module
3. Computer case and chassis with adequate power supply unit
4. Monitor
5. Keyboard
6. Pointing Device (Serial or PS/2 mouse)
7. Speaker(s) (optional)
8. Disk Drives: HDD, CD-ROM, Floppy drive…
9. External Peripherals: Printer, Plotter, and Modem (optional)
10. Internal Peripherals: Modem and LAN cards (optional)

Hardware Setup SY-5EHM/5EH5
7
2-2 Unpacking the Mainboard
When unpacking the mainboard, check for the following items:
ØThe SY-5EHM/5EH5 ETEQ82C663 PCI/AGP Mainboard
ØThe Quick Start Guide *
ØThe Installation CD-ROM *
ØThe CPU Retention Set
ØOne IDE Device Flat Cable
ØOne Floppy Disk Drive Flat Cable
ØOne bracket with one 9-pin serial connector, attached with 9-
pin flat cable, and one 6-pin PS/2 mouse connector, attached
with 6-pin cable.
ØOne bracket with one 25-pin connector paraller connector
attached with 25-pin flat cable and one 9-pin serial connector
attached with 9-pin flat cable.
* If your board comes with a driver disc and a paper manual, the Quick Start Guide
and the CD-ROM are not included in the package.
Warning: Do not unpack the mainboard from its anti-static
packaging until you are ready to install it.
Like most electronic equipment, your mainboard may be damaged
by electrostatic discharge. To avoid permanent damage to
components ground yourself while working by using a grounding
strap. Otherwise, ground yourself frequently by touching the
unpainted portion of the computer chassis to drain the static
charges.
Handle the mainboard carefully, holding it by the edges.
You are now ready to start the installation.

Hardware Setup SY-5EHM/5EH5
8
2-3 Installation Guide
We will now begin the installation of the mainboard. Please follow
the step-by-step procedure designed to lead you to a complete and
correct installation.
Step 1. CPU Installation
Follow these instructions to install your Pentium® class processor
correctly.
Locate the CPU socket labeled Socket 7 on your mainboard and
note the distinctive pinhole arrangement.
Note the corresponding pinhole arrangement on the processor.
CPU
Socket 7
Blunt Edge Blunt Edge

Hardware Setup SY-5EHM/5EH5
9
Follow these steps to install the CPU in the Socket 7:
1. Lift the socket handle up to a vertical position.
2. Align the blunt edge of the CPU with the matching pin-hole
distinctive edge on the socket.
3. Seat the processor in the socket completely and without forcing.
4. Then close the socket handle to secure the CPU in place.
Step 2. CPU Fan (JP12) Installation
Your Pentium® processor kit comes with a cooling fan. Mount the fan
on the processor according to the instructions provided by the
manufacturer. The fan is a key component that will ensure system
stability. The fan prevents overheating, therefore prolonging the life
of your CPU.
Note: Remember to connect the fan to the appropriate power
source.
1 2
34

Hardware Setup SY-5EHM/5EH5
10
Step 3. CPU Voltage Setting (JP30)
Please verify the correct voltage with your dealer before installation.
Use the following tables to set JP30 to the proper "Voltage Value",
according to the specifications marked on your CPU: This
mainboard comes with pre-configured setting of CPU voltage.
However the voltage of your CPU maybe different with the default
setting.
lCPU VOLTAGE SETTING (JP30)
JP30 are the only jumpers that you need to set for your CPU voltage
on this mainboard.
There are two kinds of CPU voltages currently on the market
depending on the CPU manufacturer:
ØSingle Voltage (CPU: P54C, AMD-K5, Cyrix 6x86)
ØDual Voltage (CPU: P55C, AMD-K6, AMD-K6-2 Cyrix
6x86L,Cyrix 6x86MX, Cyrix M II)
Those processors may come in various voltages on different
6
5
4
3
2
1
*
11
9
7
5
3
1
JP30
2
4
6
8
10
12
CPU Voltage

Hardware Setup SY-5EHM/5EH5
11
markets. Therefore, always make sure you know the type of the
CPU you are installing and adjust the settings on JP30 accordingly.
This motherboard supports CPU voltages from 2.0 to 3.52V in 0.1V
increments. Use the following tables to set the CPU voltage jumpers
JP30 to match the voltage value of your CPU:
CPU Voltage Setting: JP30
Voltage Value 1-2 3-4 5-6 7-8 9-10 11-12
single3.5V* close open open open open close
single 3.3V close open open open close open
dual 3.2V close open open close open open
dual 3.1V close close close open open open
dual 3.0V close close open open open open
dual 2.9V close open close open open open
dual 2.8V close open open open open close
dual 2.7V open close close close open open
dual 2.6V open close open close open open
dual 2.5V open open close close open open
dual 2.4V open open open close close open
dual 2.3V open close close open open open
dual 2.2V open close open open close open
dual 2.1V open open close open close open
dual 2.0V open open open open open open

Hardware Setup SY-5EHM/5EH5
12
Voltage Settings for Various Processors
Processor
Voltage Setting Voltage Value: JP30
Intel P54C - P100
Intel P54C - P133 VCORE:3.3V
VI/O:3.3V
Intel P54C - P166
Intel P54C - P200 VCORE:3.5V VI/O:3.5V
Intel P55C - P166
Intel P55C - P200
Intel P55C - P233
VCORE:2.8V
VI/O:3.3V
AMD K5 - PR100
AMD K5 - PR133
AMD K5 - PR166 VCORE:3.5V VI/O:3.5V
AMD K6 166
AMD K6 200 VCORE:2.9V VI/O:3.3V
AMD K6 233 VCORE:3.2V VI/O:3.3V
AMD K6 266
AMD K6 300
AMD K6-2 266
AMD K6-2 300
AMD K6-2 333
AMD K6-2 350
VCORE:2.2V
VI/O:3.3V
1
3
5
7
9
11
2
4
6
8
10
12
1
3
5
7
9
11
2
4
6
8
10
12
1
3
5
7
9
11
2
4
6
8
10
12
1
3
5
7
9
11
2
4
6
8
10
12
1
3
5
7
9
11
2
4
6
8
10
12
1
3
5
7
9
11
2
4
6
8
10
12
1
3
5
7
9
11
2
4
6
8
10
12

Hardware Setup SY-5EHM/5EH5
13
Voltage Settings for Various Processors (continued)
Processor
Voltage Setting Voltage Value: JP30
Cyrix 6x86(L) PR166+
Cyrix 6x86(L) PR200+ The Cyrix 6x86(L) come in several versions with different voltages. Please ask your
dealer for the correct voltage.
Cyrix 6x86MX-PR166*
Cyrix 6x86MX-PR200*
Cyrix 6x86MX-PR233*
Cyrix 6x86MX-PR266*
Cyrix M II 300*
Cyrix M II 333*
Cyrix M II 350* VCORE:2.9V
VI/O:3.3V
* Set the proper CPU voltage according to the marking on the CPU.
1
3
5
7
9
11
2
4
6
8
10
12

Hardware Setup SY-5EHM/5EH5
14
Step 4. CPU Frequency Setting (SW1)
The SY-5EHM/5EH5 mainboard is designed to support most
Pentium® class processors currently on the market. Jumpers SW1 is
used to configure the mainboard frequency parameters to match the
working frequency of your CPU.
6
5
4
3
2
1
*
SW1
SW1
ON
ON
1
2
3
4
5
6
1
2
3
4
5
6
Host Bus Frequency
Frequency Multiplier

Hardware Setup SY-5EHM/5EH5
15
lCPU FREQUENCY SETTING (SW1)
Configure the SW1 jumpers to the settings that match your CPU
speed. Refer to the following tables to set the Frequency Multiplier
and Host Bus Frequency of your CPU:
Frequency Multiplier Host Bus Frequency
Multiplier 123 Host Bus
Frequency 4 5 6
1.5/3.5x off off off 66MHz off off off
2.0x* on off off 75MHz off on off
2.5x on on off 83MHz on on off
3.0x off on off 95MHz on off on
4.0x on off on 100MHz off off on
4.5x on on on 112MHz off on on
5.0x off on on 124MHz on off off
Example: If the working frequency of your CPU is 133MHz, then
select Multiplier=2.0x and Host Bus Frequency=66Mhz accordingly.
Also, as newer and higher frequency CPUs may not be listed in this
section, please refer to the tables CPU Frequency Settings for
Various Processors on page 8 for complementary information.

Hardware Setup SY-5EHM/5EH5
16
Please refer to the following table that gives you the correct
frequency settings for the specific brand and model of CPU you are
installing on this mainboard.
Frequency Settings for Intel®Processors
Processor
Frequency Setting Ratio Bus Clock AGP Clock PCI Clock Frequency Setting: SW1
Intel P54C - P100 1.5 x66MHz 66MHz 33MHz
Intel P54C - P133 2.0 x66MHz 66MHz 33MHz
Intel P54C - P166 2.5 x66MHz 66MHz 33MHz
Intel P54C - P200 3.0 x66MHz 66MHz 33MHz
Intel P55C - P166 2.5 x66MHz 66MHz 33MHz
Intel P55C - P200 3.0 x66MHz 66MHz 33MHz
Intel P55C - P233 3.5 x66MHz 66MHz 33MHz
* Set the proper CPU frequency according to the marking on the CPU.
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON

Hardware Setup SY-5EHM/5EH5
17
Frequency Settings for AMD™Processors
Processor
Frequency Setting Ratio Bus Clock AGP Clock PCI Clock Frequency Setting: SW1
AMD K5 - PR100 1.5 x 66MHz 66MHz 33MHz
AMD K5 - PR133 2.0 x 66MHz 66MHz 33MHz
AMD K5 - PR166 2.5 x 66MHz 66MHz 33MHz
AMD K6 - 166 2.5 x 66MHz 66MHz 33MHz
AMD K6 - 200 3.0 x 66MHz 66MHz 33MHz
AMD K6 - 233 3.5 x 66MHz 66MHz 33MHz
AMD K6 - 266 4.0 x 66MHz 66MHz 33MHz
AMD K6 - 300 4.5 x 66MHz 66MHz 33MHz
AMD K6-2 266 4.0 x 66MHz 66MHz 33MHz
AMD K6-2 300 3.0 x 100MHz 66MHz 33MHz
AMD K6-2 333 3.5 x 95MHz 63.4MHz 31.7MHz
AMD K6-2 350 3.5 x 100MHz 66MHz 33MHz
* Set the proper CPU frequency according to the marking on the CPU.
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON
1
2
3
4
5
6
ON