Gigabyte 5SG100 User manual

Table of Contents
30
TABLE OF CONTENTS
1. INTRODUCTION
1.1. PREFACE..................................................................................1-1
1.2. KEY FEATURES........................................................................1-1
1.3. PERFORMANCE LIST...............................................................1-2
1.4. BLOCK DIAGRAM .....................................................................1-3
1.5. INTRODUCE THE PCI - BUS.....................................................1-4
1.6. FEATURES................................................................................1-5
1.7. What is AGP ?...........................................................................1-5
2. SPECIFICATION
2.1. HARDWARE..............................................................................2-1
2.2. SOFTWARE ..............................................................................2-2
2.3. ENVIRONMENT.........................................................................2-2
3. HARDWARE INSTALLATION
3.1. UNPACKING..............................................................................3-1
3.2. MAINBOARD LAYOUT...............................................................3-2
3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS...........3-2
3.4. DRAM INSTALLATION...............................................................3-6
3.5. SRAM INSTALLATION...............................................................3-6
Sync. SRAM (Pipeline Burst SRAM)...........................................3-6
3.6. CPU INSTALLATION AND JUMPERS SETUP............................3-6
3.7. CMOS RTC & ISA CFG CMOS SRAM........................................3-7
3.8. SPEAKER CONNECTOR INSTALLATION .................................3-7
3.9. ACPI LED & KEY LOCK CONNECTOR INSTALLATION ............3-7

5SG100
31
3.10.HARDWARE RESET SWITCH CONNECTOR INSTALLATION .3-7
3.11. GREEN FUNCTION INSTALLATION........................................3-7
3.12. PERIPHERAL DEVICE INSTALLATION ...................................3-8
4. BIOS CONFIGURATION
4.1. ENTERING SETUP....................................................................4-1
4.2. CONTROL KEYS.......................................................................4-2
4.3. GETTING HELP.........................................................................4-3
4.3.1. Main Menu.......................................................................4-3
4.3.2. Status Page Setup Menu / Option Page Setup Menu........4-3
4.4. THE MAIN MENU.......................................................................4-3
4.5. STANDARD CMOS SETUP MENU.............................................4-5
4.6. BIOS FEATURES SETUP..........................................................4-9
4.7. CHIPSET FEATURES SETUP....................................................4-14
4.8. POWER MANAGEMENT SETUP...............................................4-20
4.9. PNP/PCI CONFIGURATION ......................................................4-23
4.10. LOAD BIOS DEFAULTS...........................................................4-24
4.11. LOAD SETUP DEFAULTS........................................................4-25
4.12. INTEGRATED PERIPHERALS.................................................4-26
4.13. SUPERVISOR / USER PASSWORD ......................................4-32
4.14. IDE HDD AUTO DETECTION...................................................4-33
4.15. SAVE & EXIT SETUP.............................................................4-34
4.16. EXIT WITHOUT SAVING........................................................4-35

Introduction
1-1
1. INTRODUCTION
1.1. PREFACE
Welcome to use the 5SG100 motherboard. The motherboard is a Pipeline
512 KB CACHE PentiumProcessor based PC / AT compatible system with
ISA bus and PCI Local Bus, and has been designed to be the fastest PC / AT
system. There are some new features allow you to operate the system with
the performance you want.
This manual also explains how to install the motherboard for operation, and
how to set up your CMOS CONFIGURATION with BIOS SETUP program.
1.2. KEY FEATURES
qPentiumProcessor based PC / AT compatible mainboard with PCI /
ISA / AGP Bus.
q4 PCI Bus slots, 2 ISA Bus slots, 1 AGP slot.
qSupports PentiumProcessor running at 90-233 MHz, P54CT (150 /
166), MMX (150 / 166 / 200 / 233), P54CTB (150 / 166 / 180 / 200),
AMDK5 (PR133 / PR166), AMD-
K6(166/180/200(2.9V)/233(3.2V)/266/300 (2.2V)), AMDK6-
2(250/266/300/333/350)(2.2V),Cyrix/IBM6x86-120/
133/150(PR150+/PR166+/PR200+), Cyrix / IBM 6x86L (PR150+ /
PR166+/PR200+(2.8V)), Cyrix / IBM 6x86MX (PR166 (60x2.5 2.9V) /
PR200 (66x2.5 2.9V) (75x2 2.9V)/ PR233 (66x3 2.9V) (75x2.5 2.9V)) /
PR266 (66x3.5 2.9V) (75x3 2.9V) (83x2.5 2.9V)),IBM MX PR333
(100*2.5)(2.9V).
qSupports true 64 bits CACHE and DRAM access mode.
qSupports 321 Pins (Socket 7) ZIF white socket on board.
qSupports 512 KB Pipeline Burst Sync. 2nd Level Cache.
qCPU L1 / L2 Write-Back cache operation.
qSupports 8 - 768 MB DRAM memory on board.
qSupports 3*168 pin 64/72 Bit DIMM module.
qSupports 2-channel Ultra DMA/33 Enhanced PCI IDE ports for 4 IDE
Devices.
qSupports 2*COM (16550), 1*LPT (EPP / ECP), 1*1.44MB Floppy port.

5SG100
1-2
qSupports Green function, Plug & Play function.
qLicensed AWARD BIOS, FLASH RAM for BIOS update.
q22cm*25cm, AT Form factor.
qSupports USB port & PS/2 Mouse port.
qSupports 3 steps ACPI LED.
1.3. PERFORMANCE LIST
The following list of performance data is the testing results of some popular
benchmark testing programs.
These data are just referred by users, and there is no responsibility for
different testing data values gotten by users. (The different Hardware &
Software configuration will result in different benchmark testing results.)
•CPU Intel PentiumProcessor MMX 166MHz , AMD K6-2
300MHz, Cyrix 6x86 MX PR200MHz
•DRAM DIMM, SDRAM 32 MB * 1 pcs. Total 32 MB TOSHIBA
(TC5951608AFT-12A)
•CACHE SIZE 512KB 2nd Level Cache on board.
•DISPLAY GIGABYTE GA-601 (4MB SGRAM).
•STORAGE Onboard IDE port + IBM DHEA-36481
•O.S. Windows95 with Display Driver at 1024 x 768 x 256
colors & SiS IDE Driver (Ultra DMA supported)
×Windows 95Ø-With SiS IDE Driver
Processor
Program Intel Penium MMX
166MHz (66*2.5) AMD K6-2 300MHz (100*3) Cyrix 6x86 MX PR200MHz (75*2)
Winbench98
Business Graphic
WinMark 86.1 143 101
High-End Graphic
WinMark 76.3 147 105
3D Winbench 97
3D WinMark 115 162 73.4
Large Scene 16.9 24 11.4

Introduction
1-3
1.4. BLOCK DIAGRAM

5SG100
1-4
CPU
Tag RAM
PBSRAM
AGP
DEVICE
Host Address
Host Data Bus
ISA Bus
PCI Bus
PCI
Device PCI Device
PCI
Device
PCI
Device
MD Bus
SiS 5595 Keyboard
GPIO
USB
SiS 5591 SDRAM
MA Bus
IDE DEVICE
BIOS
ISA
Device
ISA
Device
Winbond
I/O
ComA
ComB LPT FDD
66MHz
66MHz
66MHz 66MHz
33MHz
66MHz
33MHz
33MHz
48MHz
24MHz
14.318MHz
14.318MHz
ICS9148BF-
37
1.5. INTRODUCE THE PCI - BUS

Introduction
1-5
Connecting devices to a CPU local bus can dramatically increase the speed
of I/O-bound peripherals with only a slight increase in cost over traditional
systems.
This price / Performance point has created a vast market potential for local
bus products.
The main barrier to this market has been the lack of an accepted standard
for local bus peripherals.
Many mainboard and chipset manufactures developed their own local bus
implementations, but they are incompatible with each other.
The VL (Video Electronics Standards Association) local bus and PCI
(Peripheral Component Interconnect) bus specification was created to end
this confusion.
The PCI - bus standard, under development since Jun. 1992, which is
designed to bring workstation-level performance to standard PC platform.
The PCI - bus removes many of the bottlenecks that have hampered PC for
several years.
On the PCI - bus, peripherals operate at the native speed of the computer
system, thus enabling data transfer between peripherals and the system at
maximum speed.
This performance is critical for bandwidth-constrained devices such as video,
multimedia, mass storage, and networking adapters.
PCI - bus standard provides end-users with a low-cost, extendible and
portable local bus design, which will allow system and peripherals from
different manufactures to work together.
1.6. FEATURES
q32 bits bus transfer mode.
qBus Master or Slave access.
qMemory burst transfer to 132 MB/sec.
q33 MHz operation speed.
q10 device loading ability.
qCPU independent.

5SG100
1-6
1.7. What is AGP ?
The Accelerated Graphics Port (AGP) is a new port on the Host-To-PCI
bridge device that supports an AGP port. The main purpose of the AGP port
is to provide fast access to system memory.
The AGP port can be used either as fast PCI port (32-bits at 66MHz vs. 32-
bits at 33MHz) or as an AGP port which supports 2x data-rate, a read queue,
and side band addressing. When the 2x-data rate is used the port can
transmit data at 533Mb/sec (66.6*2*4). The read-queue can be used to
pipeline reads –removing the effects of the reads-latency. Side band
addressing can be used to transmit the data address on a separate line in
order to further speed the transaction.
F If you have any problems under some 3D games when using
ATi Rage Pro AGP card, please try to modify the value of
C:\Windows\Regedit.exe\HKEY_LOCAL_MACHINE\Software\ATi
Technologies\3D\ATID3D\Ebmmode (ATi driver ver. 5.20)
from “01”to “00”.

5SG100
2-1
2. SPECIFICATION
2.1. HARDWARE
•CPU −PentiumProcessor 90 - 233 MHz, MMX, P54CT,
P54CTB, AMDK5(PR133 / PR166), AMD-K6 (166 /
180 / 200 (2.9V) / 233 (3.2V)/266/300(2.2V)),
AMD-K6-2(250/266/300/333/350)(2.2V),Cyrix / IBM
6x86 ( PR150+ / PR166+ / PR200+), Cyrix / IBM
6x86L (PR150+/ PR166+/ PR200+( 2.8V)), Cyrix /
IBM 6x86MX (PR166 (60x2.5 2.9V) / PR200
(66x2.5 2.9V) (75x2 2.9V)/ PR233 (66x3 2.9V)
(75x2.5 2.9V) (83x2)/PR266 (66x3.5) (75x3)
(83x2.5), IBM MX PR333 (100*2.5)(2.9V).
−321 pins (socket 7) ZIF white socket on board.
−3.52V / 2.0V-3.5V Dual Power Ready.
•COPROCESSOR −Included in processor.
•SPEED −60 / 66 / 75/ 83 /95 /100MHz system speed.
−60 / 66 MHz AGP-Bus speed.
−30 / 33 MHz PCI-Bus speed.
−7.5 / 8 MHz AT bus speed.
•DRAM MEMORY −3 banks 168 pins DIMM module socket on board.
−Use 8 / 16 / 32 / 64 /128/256 MB DRAM.
−8 ~ 768 MB DRAM size.
•CACHE MEMORY −16 / 24 / 32 / 64KB L1cache included in CPU.
−512 KB 2nd Level cache on board.
−Supports Write Back cache function for both CPU
& on board cache.
•I/O BUS SLOTS −4 xMaster / Slave PCI-BUS Slots.
−2 x16 bits ISA BUS Slots.
−1 xAGP Slot.

Specification
2-2
•IDE PORTS −2-channel Ultra DMA/33 Enhanced IDE port on
board.(Using IRQ14,15)
−Supports Mode 3,4 IDE & ATAPI CD - ROM.
•I/O PORTS −Supports 2 x16550 COM ports. (Using IRQ4, 3)
−Supports 1 x EPP/ECP LPT port. (Using IRQ7 or 5
and DMA3 or 1)
−Supports 1 x 1.44/2.88 MB Floppy port. (Using
DMA2 & IRQ6)
−Supports PS/2 Mouse. (Using IRQ12 )
•GREEN FUNCTION −Standby & Suspend mode support.
−Green switch & ACPI LED support.
−IDE & Display power down support.
−Monitor all IRQ / DMA / Display / I/O events.
•BIOS −1Mbit FLASH RAM.
−Supports Plug & Play Function.
•DIMENSION −AT Form Factor, 4 layers PCB.
2.2. SOFTWARE
•BIOS −Licensed AWARD BIOS.
−AT CMOS Setup, BIOS / Chipset Setup, Green
Setup, Hard Disk Utility included.
•O.S. −Operation with MS-DOS, Windows95,
WINDOWSNT, OS/2, NOVELL and SCO UNIX.
2.3. ENVIRONMENT
•Ambient Temp. −0°C to +50°C (Operating).
•Relative Hum. −0 to +85% (Operating).
•Altitude −0 to 10,000 feet (Operating).
•Vibration −0 to 1,000 Hz.
•Electricity −4.9 V to 5.2 V.
−Max. 20A current at 5V.

5SG100
3-1
3. HARDWARE INSTALLATION
3.1. UNPACKING
The mainboard package should contain the following:
•The 5SG100 mainboard.
•USER’S MANUAL for mainboard.
•Cable set for IDE ¡B Floppy & I/O Port .
•Diskette for Driver.
The mainboard contains sensitive electric components which can be easily
damaged by static electricity, so the mainboard should be left in its original
packing until it is installed.
Unpacking and installation should be done on a grounded anti-static mat.
The operator should be wearing an anti static wristband, grounded at the
same point as the anti-static mat.
Inspect the mainboard carton for obvious damage. Shipping and handling
may cause damage to your board. Be sure there are no shipping and
handling damage on the board before proceeding.
After opening the mainboard carton, extract the system board and place it
only on a grounded anti-static surface component side up. Again inspect the
board for damage.
Press down on all of the socket IC’s to make sure that they are properly
seated. Do this only on with the board placed on a firm flat surface.
M DO NOT APPLY POWER TO THE BOARD IF IT HAS BEEN DAMAGED.
It is assumed that the chassis is designed for a standard IBM XT/AT
mainboard mounting. Place the chassis on the anti-static mat and remove
the cover.
Take the plastic clips, Nylon stand-off and screws for mounting the system
board, and keep them separate.

Hardware Installation
3-2
3.2. MAINBOARD LAYOUT
SIS
5595
5SG100
SW1
SW2
CPU
IDE 1
IDE 2
AT PWR
ATX PWR
FLOPPY
BAT 1
LPT
COM B
KB
PS/2
DIMM 1
DIMM 2
DIMM 3
Wake on Lan JP2
AGP
PCI 1
PCI 2
PCI 3
PCI 4
BIOS USB
ISA 1
ISA 2
IR
SPK
TD
TB
RST
GN
HD
CPU FAN
COM A
×Figure 3.1Ø
3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS
tI/O Ports Connectors
AT PWR For AT Power Connector
ATX PWR For ATX Power Connector
KB For AT Keyboard Connector
PS/2 For PS/2 Mouse port
LPT For LPT port.
COM B For Serial port2 (COM B). {Support Modem Ring On}.
COM A For Serial port1 (COM A).
Floppy For Floppy port.
IDE1 For Primary IDE port.
IDE2 For Secondary IDE port.
tIR : INFRARED Connector (IR) -- Function Option
Pin No. Function
1IR Data Output
2GND
3IR Data Input
4Signal
5POWER (+)

5SG100
3-3
tPWR : ACPI LED /Key-Lock Connector
Pin No. Function
1LED anode (+).
2LED cathode (−).
3LED cathode (−).
4Key Lock
5GND
tSPK : SPEAKER Connector
Pin No. Function
1VCC
2NC.
3NC.
4Signal
tTD : Turbo LED Connector
Pin No. Function
1LED POWER (+)
2LED POWER (−)
tTB : Turbo Switch Connector
Pin No. Function
1SIGNAL
2GND
tRST : RESET Switch
Pin No. Function
1RESET Input
2GND
tGD : Green LED Connector
Pin No. Function
1Signal
2GND
tGN : Green Function Switch
Pin No. Function
Short Entering Green Mode
Open Normal operation

Hardware Installation
3-4
tHD : Hard Disk active LED (HD-LED)
Pin No. Function
1LED ANODE(+)
2LED CATHODE (−)
tSoft PWR : Soft Power Switch
Pin No. Function
Short Power on/off
Open Normal Operation
tUSB : USB Port
Pin No. Function
1VCC.
2SBD0−.
3SBD0+.
4GND.
5VCC.
6SBD1−.
7SBD1+.
8GND.
tJP2: Keyboard Power-on Connector
Pin No. Function
Short Keyboard Power-on enabled
Open Keyboard Power-on disabled
tCPU FAN: CPU Cooling FAN Power Connector
Pin No. Function
1GND
2+12V
3Signal
tWake on LAN Connector
Pin No. Function
1+5VSB
2GND
3Signal

5SG100
3-5
SW : For CPU INT./EXT.FREQ.
O :ON
X:OFF
SW1
SW1 2 3 8 SW1 4 5 6 7
X 1.5 X X X AUTO X X X O
X 2 OX X 2.1V X X OX
X 2.5 O O X2.2V XOX X
X 3 XOX2.3V XO O X
X 3.5 X X X 2.4V OX X X
X 4 OXO2.5V OXOX
X 4.5 O O O 2.6V O O X X
X 5 XO O 2.7V O O O X
X 5.5 X X O2.8V X X X O
2.9V X X O O
3.0V XOXO
3.1V XO O O
3.2V OX X O
3.3V OXO O
3.4V O O XO
3.5V O O O O
SW2
CPU PCI AGP 1 2 3
60MHz 30 60 X X X
66MHz 33 66 OX X
68MHz 34 68 XOX
75MHz 37.5 75 O O X
75MHz 30 60 X X O
83MHz 33 66 OXO
95MHz 32 64 XO O

Hardware Installation
3-6
100MHz 33 66 O O O
3.4. DRAM INSTALLATION
The mainboard can be installed with 8/16 / 32 / 64 / 128 / 256 MB 168 pins
DIMM module DRAM, and the DRAM speed must be 67~100 MHz for
SDRAM. The DRAM memory system on mainboard consists of bank 1,2&
bank3.
Because the 168 pins DIMM module is 64 bits width, using 1 PCS which can
match a 64 bits system. The total memory size is 8 MB ~ 256 MB DRAM.
The DRAM installation position refer to Figure 3.1, and notice the Pin 1 of
DIMM module must match with the Pin 1 of DIMM socket. Insert the DRAM
DIMM module into the DIMM socket at Vertical angle. If there is a wrong
direction of Pin 1, the DRAM DIMM module couldn't be inserted into socket
completely.
3.5. SRAM INSTALLATION
Sync. SRAM (Pipeline Burst SRAM)
If Sync SRAM Chip is installed, it consists of Pipeline Burst 1 Pc 64 K x 64
512KByte.
There is no jumper for cache size setting.
3.6. CPU INSTALLATION AND JUMPERS SETUP
The system speed depends on the frequency of CLOCK GENERATOR. The
user can change SW2 selection to set up the system speed to 60 or 66 or 75
or 83 or 95 or 100 MHz for 3.3V/2.5V PentiumProcessor (90-233 MHz) /
AMDK5(PR133/PR166)AMDK6(166/180/200(2.9V)/233(3.2V)/266/300(2.2V))
/AMD-K6-2 (250/266/300/333/350)(2.2V),Cyrix / IBM 6x86 (PR150+ /
PR166+/ PR200+), Cyrix / IBM 6x86L (PR150+/PR166+/PR200+ (2.8V)),
Cyrix / IBM 6x86MX (PR166 (60x2.5 2.9V) / PR200 (66x2.5 2.9V) (75x2
2.9V)/ PR233 (66x3 2.9V) (75x2.5 2.9V) / PR266 (66x3.5 2.9V) (75x3
2.9V) (83x2.5 2.9V)) IBM MX PR333 (100*2.5 2.9V).
The mainboard can use PentiumProcessor, P54CT, MMX or P54CTB,
AMDK5, AMD-K6, AMD-K6-2, Cyrix / IBM 6x86, CPU, and the CPU speed
must match with the frequency of CLOCK GEN. It will cause system hanging
up if the CLOCK GEN.'S frequency is faster than CPU's.

5SG100
3-7
M The CPU is a sensitive electric component and it can be easily
damaged by static electricity, so users must keep it away from
metal surface when the CPU is installed onto mainboard.
M When the user installs the CPU on socket, please notice that the
PIN 1 of CPU is in the same corner as the PIN 1 of socket!
M Before the CPU is installed, the mainboard must be placed on a flat
plane in order to avoid being broken by the pressure of CPU
installation.
3.7. CMOS RTC & ISA CFG CMOS SRAM
Built-in Real Time Clock (RTC) With 256B CMOS SRAM in SiS5595.
3.8. SPEAKER CONNECTOR INSTALLATION
There is a speaker in AT system for sound purpose. The 4 - Pins connector
SPK is used to connect speaker.
The speaker can work well in both direction of connector when it is installed
to the connector SPK on mainboard.
3.9. ACPI LED & KEY LOCK CONNECTOR INSTALLATION
This mainboard uses the existing power LED as ACPI LED .The ACPI LED
will light on when system is power-on .The ACPI LED is off when the system
is power-off. The ACPI LED will blink when system is in Green mode.This
connector should be installed to ACPI LED jumper of the mainboard in
correct direction.
3.10. HARDWARE RESET SWITCH CONNECTOR INSTALLATION
The RESET switch on panel provides users with HARDWARE RESET
function which is almost the same as power-on/off. The system will do a cold
start after the RESET switch is pushed and released by user. The RESET
switch is a 2 PIN connector and should be installed to RST on mainboard.
3.11. GREEN FUNCTION INSTALLATION
There is one jumper for the purpose of power saving, GN , to indicate the

Hardware Installation
3-8
power saving function . This mainboard uses the existing power LED as
ACPI LED . If the ACPI LED is blinking, the system is in green mode. The
GN switch will force the system into green mode .
3.12. PERIPHERAL DEVICE INSTALLATION
After installation of the device and setup of the jumpers, the mainboard can
be mounted into the case and fixed by screw. To complete the mainboard
installation, the peripheral devices could be installed now. The basic system
needs a display interface card and a storage device.
If a PCI - Bus device is to be installed in the system, any one of four PCI -
Bus slots can be used for Slave or Master PCI - Bus device.
After installing the peripheral device, the user should check everything again
and prepare to power-on the system.