Asus SP97 User manual

R
SP97/SP97-V
Pentium®Motherboard
USER’S MANUAL

2 ASUS SP97 / SP97-V User’s Manual
Product Name: ASUS SP97 / SP97-V
Manual Revision: 1.02
Release Date: July 1997
USER’S NOTICE
No part of this manual, including the products and softwares described in it, may be repro-
duced, transmitted, transcribed, stored in a retrieval system, or translated into any language
in any form or by any means, except documentation kept by the purchaser for backup pur-
poses, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOTLIMITED TO THE IMPLIED
WARRANTIES OR CONDITIONS OF MERCHANTABILITYOR FITNESS FORAPAR-
TICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS,
EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDEN-
TAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF
PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSI-
NESS AND THE LIKE), EVEN IF ASUS HAS BEENADVISED OF THE POSSIBILITY
OF SUCH DAMAGESARISING FROM ANYDEFECT OR ERROR IN THIS MANUAL
OR PRODUCT.
Products and corporate names appearing in this manual may or may not be registered trade-
marks or copyrights of their respective companies, and are used only for identification or
explanation and to the owners’ benefit, without intent to infringe.
• Intel, LANDesk, and Pentium are registered trademarks of Intel Corporation.
• IBM and OS/2 are registered trademarks of International Business Machines.
• Symbios is a registered trademark of Symbios Logic Corporation.
• Windows and MS-DOS are registered trademarks of Microsoft Corporation.
• Sound Blaster AWE32 and SB16 are trademarks of Creative Technology Ltd.
• Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated.
The product name and revision number are both printed on the board itself. Manual revisions
are released for each board design represented by the digit before and after the period of the
manual revision number. Manual updates are represented by the third digit in the manual
revision number.
For previous or updated manuals, BIOS, drivers, or product release information, contactASUS
at http://www.asus.com.tw or through any of the means indicated on the following page.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUALARE FUR-
NISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT
ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COM-
MITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBLITY OR LIABILITY FOR
ANYERRORSOR INACCURACIESTHATMAYAPPEARINTHISMANUAL, INCLUD-
ING THE PRODUCTS AND SOFTWARES DESCRIBED IN IT.
Copyright © 1997 ASUSTeK COMPUTER INC. All Rights Reserved.

ASUS SP97 / SP97-V User’s Manual 3
CONTACT INFORMATION
ASUSTeK COMPUTER INC.
Marketing Info
Address: 150 Li-Te Road, Peitou, Taipei, Taiwan 112, ROC
Telephone: [phone]
Fax: [phone]
Email: [email protected]
Technical Support
Fax: [phone]
BBS: [phone]
Email: [email protected]
WWW: www.asus.com.tw
Gopher: gopher.asus.com.tw
FTP: ftp.asus.com.tw/pub/ASUS
ASUS COMPUTER INTERNATIONAL
Marketing Info
Address: 721 Charcot Avenue, San Jose, CA 95131, USA
Telephone: [phone]
Fax: [phone]
Email: [email protected]
Technical Support
BBS: [phone]
Email: [email protected]
WWW: www.asus.com
ASUS COMPUTER GmbH
Marketing Info
Address: Harkort Str. 25, 40880 Ratingen, BRD, Germany
Telephone: [phone]
Fax: [phone]
Email: [email protected]
Technical Support
BBS: 49-2102-448690
Email: [email protected]
Hotline: [phone]

4 ASUS SP97 / SP97-V User’s Manual
CONTENTS
I. INTRODUCTION............................................................................ 7
How this Manual is Organized ........................................................ 7
Item Checklist .................................................................................. 7
II. FEATURES ..................................................................................... 8
Features of the ASUS SP97 Motherboard ....................................... 8
Introduction to ASUS SP97 Series of Motherboards ................. 9
The ASUS SP97 Motherboard ......................................................... 11
III. INSTALLATION .......................................................................... 12
ASUS SP97 Motherboard Layout.................................................... 12
Installation Steps.............................................................................. 14
1. Jumpers ........................................................................................ 14
Jumper Settings .................................................................... 15
Compatible Cyrix CPU Identification .................................. 16
2. System Memory (SIMM)............................................................. 20
SIMM Installation ................................................................ 21
3. Central Processing Unit (CPU).................................................... 23
4. Expansion Cards .......................................................................... 24
Expansion Card Installation Procedure ................................ 24
Assigning IRQs for Expansion Cards................................... 24
Assigning DMA Channels for ISA Cards............................. 25
5. External Connectors..................................................................... 26
Power Connection Procedures ................................................... 35
IV. BIOS SOFTWARE ....................................................................... 36
Support Software ............................................................................. 36
Flash Memory Writer Utility ........................................................... 36
Main Menu ........................................................................... 36
Advanced Feature Menu....................................................... 37
Managing and Updating Your Motherboard’s BIOS.................. 38
6. BIOS Setup ................................................................................. 39
Load Defaults ....................................................................... 40
Standard CMOS Setup ............................................................... 40
Details of Standard CMOS Setup:........................................ 41
BIOS Features Setup .................................................................. 43
Details of BIOS Features Setup............................................ 43
Chipset Features Setup ............................................................... 45
Details of Chipset Features Setup......................................... 45
Power Management Setup.......................................................... 48
Details of Power Management Setup ................................... 48
PNP and PCI Setup .................................................................... 50
Details of PNP and PCI Setup .............................................. 50
Load BIOS Defaults ................................................................... 52

ASUS SP97 / SP97-V User’s Manual 5
CONTENTS
Load Setup Defaults ................................................................... 52
Supervisor Password and User Password .................................. 53
IDE HDD Auto Detection .......................................................... 54
Save and Exit Setup ................................................................... 55
Exit Without Saving ................................................................... 55
V. SUPPORT SOFTWARE................................................................ 56
Desktop Management Interface (DMI)............................................ 56
Introducing the ASUS DMI Configuration Utility ............... 56
System Requirements ........................................................... 56
Using the ASUS DMI Configuration Utility ........................ 57
Notes..................................................................................... 57
VI. ASUS PCI SCSI Cards ................................................................ 59
Symbios SCSI BIOS and Drivers .................................................... 59
ASUS PCI-SC200 & PCI-SC860 SCSI Cards ................................ 59
Setting Up the ASUS PCI-SC200 & PCI-SC860....................... 60
Setting the INTAssignment for the ASUS PCI-SC200 ............. 60
Terminator Requirements for SCSI Devices .............................. 60
Terminator Settings for the ASUS PCI-SC860 .......................... 61
Terminator Settings for the ASUS PCI-SC200 .......................... 61
SCSI ID Numbers for SCSI Devices ......................................... 62
SCSI ID Priority ......................................................................... 62
VII. ASUS I-A16C Audio Card ......................................................... 63
ASUS I-A16C Audio Features ................................................... 63
Unpacking and Handling Precautions ........................................ 63
Layout and Connectors .............................................................. 64
Connectors ............................................................................ 64
CD-Audio Connector Pin Definitions ........................................ 64
VIDEO SOFTWARE MANUAL (with onboard 5598 VGA only) .. 65
VIII. DOS UTILITY .......................................................................... 67
DOS Utility ...................................................................................... 67
1. SVGAUTL.EXE .................................................................... 67
IX. SOFTWARE DRIVERS .............................................................. 74
Software Drivers .............................................................................. 74
1. Windows 3.1.......................................................................... 75
2. Windows 95........................................................................... 81
5. Autodesk ADI 4.2 -Protected Mode ....................................... 86
6. OS/2 V2.1............................................................................... 92
7. OS/2 V3.0 (Warp) ................................................................. 93
8. Double Bytes OS/2 Warp ...................................................... 94

6 ASUS SP97 / SP97-V User’s Manual
FCC & DOC COMPLIANCE
Federal Communications Commission Statement
This device complies with FCC Rules Part 15. Operation is subject to the following
two conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received, including interference that
may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installa-
tion. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with manufacturer’s instructions, may cause
harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interfer-
ence by one or more of the following measures:
• Re-orient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
WARNING! The use of shielded cables for connection of the monitor to the
graphics card is required to assure compliance with FCC regulations. Changes
or modifications to this unit not expressly approved by the party responsible for
compliance could void the user’s authority to operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions
from digital apparatus set out in the Radio Interference Regulations of the Canadian
Department of Communications.

ASUS SP97 / SP97-V User’s Manual 7
I. INTRODUCTION
I. INTRODUCTION
(Sections/Checklist)
How this Manual is Organized
I. Introduction Contents and checklist
II. Features Product information and specifications
III. Installation Instructions on setting up the motherboard
IV. BIOS Software Instructions on setting up the BIOS software
V. Support Software Information on the included support software
VI. ASUS SCSI Cards Installation of optional ASUS SCSI cards
VII.ASUS Audio Card Installation of an optional 16-bit audio card
Item Checklist
Check that your package is complete. If you discover damaged or missing items,
contact your retailer.
þASUS SP97 or SP97-V (onboard VGA) motherboard
þ2 serial port ribbon cables with mounting brackets
þ1 parallel ribbon cable with mounting bracket
þ1 IDE ribbon cable
þ1 floppy disk ribbon cable
þASUS SP97 Support Drivers
• Flash Memory Writer utility to update the FLASH BIOS
• Desktop Management Interface (DMI) utility
• Readme files for descriptions and use of the files
• Technical Support Form
þUser’s Manual (Audio section included with ASUS I-A16C audio bundle)
¨1 video ribbon cable with mounting bracket for the 5598 onboard VGA
¨USB, PS/2 mouse, and IR cable with mounting bracket set (optional)
¨ASUS PCI-SC200 Fast-SCSI card (optional)
¨ASUS I-A16C audio card, audio driver CD, and manual* (optional)
*Online help is provided with the Creative 16X audio drivers.A separate manual is
provided for the Creative 16C Series audio drivers.

8 ASUS SP97 / SP97-V User’s Manual
II. FEATURES
(ASUS SP97)
II. FEATURES
Features of the ASUS SP97 Motherboard
TheASUS SP97 motherboard is carefully designed for the demanding PC user who
wants many features in a small package, namely:
•SiS Chipset: Features either SiS5582 or SiS5598 chipsets.The SiS5598 chipset
has a built-in video controller and supports video shared memory from 1MB to
4MB.
•VersatileProcessorSupport: Intel Pentium
®
75–233MHz(P55C-MMX
™
,P54C/
P54CS), IBM
®
/Cyrix
®
6x86-PR166+ (Rev 2.7 or later), IBM
®
/Cyrix
®
6x86MX
™
(PR166 & faster), AMD-K5
™
(PR75–PR133), AMD-K6
™
(PR166 & faster).
•Versatile Memory Support: Equipped with four SIMM sockets to support 4–
64MB 72-pin Fast Page Mode (FPM) or Extended Data Out (EDO) memory
modules up to 256MB.
•Easy Installation: Incorporates BIOS that supports autodetection of hard disk
drives, PS/2 mouse, and Plug and Play devices to make setup of hard disk drives,
expansion cards, and other devices virtually automatic.
•Dual Power Supply: Includes both AT and ATX power connectors onboard to
support an AT orATX power supply with soft-on/soft-off features.
•ISA and PCI Expansion Slots: Provides two 16-bit ISA slots, three 32-bit PCI
slots, and one PCI/ISA shared slot for either a PCI or ISA card.
•Super Multi-I/O: Provides two high-speed UART-compatible serial ports and
one parallel port with EPP and ECP capabilities.
• Desktop Management Interface (DMI): Supports DMI through BIOS, which
allows hardware to communicate within a standard protocol creating a higher
level of compatibility. (Requires DMI-enabled components.) (See section V)
•PCI Bus Master IDE Controller: Comes with an onboard Ultra DMA/33 Bus
Master IDE controller with two connectors. Supports four IDE devices more
than 8.4GB in two channels up to 33MB/sec IDE transfers and Enhanced IDE
devices. Also supports PIO Modes 3 and 4 and Bus Master IDE DMA Mode 2.
Includes integrated keyboard controller. Supports two of either 5.25- (360KB or
1.2KB) or 3.5-inch disk drives (720KB, 1.44MB, or 2.88MB). Supports Japa-
nese “Floppy 3 mode” (3.5-inch disk drive: 1.2MB) and LS-120 floppy disk
drives (3.5-inch disk drive: 120 MB, 1.44MB, 720K). BIOS supports IDE CD-
ROM or SCSI device bootup.
•Level 2 Cache: Comes with onboard 512K or 256KB Pipelined Burst SRAM.
•USB, IrDA, PS/2 Mouse Connector: Supports an optional cable and bracket
set to allow connection to an unused expansion slot on the system chassis. A
second IrDA connector is available for a standard infrared cable set.
•IrDA Connector: Supports an optional infrared module for wireless interface.
•Symbios SCSI BIOS: Supports optional ASUS SCSI controller cards through
onboard firmware.

ASUS SP97 / SP97-V User’s Manual 9
II. FEATURES
II. FEATURES
(SP97 Series)
Introduction to ASUS SP97 Series of Motherboards
Performance
• Double the IDETransfer Speed: ASUS SP97 series of motherboards with SiS
5582 or SiS 5598 (with VGA) improves IDE transfer rate using Bus Master
UltraDMA/33 IDE, which can handle data transfers up to 33MB/s. This new
technology is compatible with existing ATA-2 IDE specifications so there is no
need to upgrade current hard disk drives or cables.
•Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI mas-
ter busses to memory to CPU.
• ACPIReady:ACPI(AdvancedConfigurationandPowerInterface)isalsoimple-
mented on allASUS SiS 5582 or SiS 5598 (with VGA) series of motherboards.
ACPI provides more Energy Saving Features for future operating systems (OS)
supporting OS Direct Power Management (OSPM) functionality. With these
features implemented in the OS, PCs can be ready around-the-clock, yet satisfy
all the energy saving standards. To fully utilize the benefits of ACPI, an ACPI-
supported OS, such as the successor to Windows 95, must be used.
• PC ’97 Compliant: Both the BIOS and hardware levels ofASUS SP97 series of
motherboards meet PC ’97 compliancy. The new PC ’97 requirements for sys-
tems and components are based on the following high-level goals: support for
Plug and Play compatibility and power management for configuring and man-
aging all system components, and 32-bit device drivers and installation proce-
dures for both Windows 95 and Windows NT.

10 ASUS SP97 / SP97-V User’s Manual
(This page was intentionally left blank)

ASUS SP97 / SP97-V User’s Manual 11
The ASUS SP97 Motherboard
II. FEATURES
II. FEATURES
(ASUS SP97)
CPU ZIF
Socket 7
Serial
SiS5582 or
5598 (VGA)
Chipset
USB, PS/2 Mouse, Infrared
Switching Voltage Regulators
4 SIMM Sockets
512KB/256KB Pipelined
Burst L2 Cache
Keyboard
Programmable
Flash ROM
IDE Connectors
1 ISA/PCI
Shared Slot
3 PCI Slots
2ISA Slots
Super Multi I/O
AT Power Conn.
ATX Power Conn.
Parallel
Floppy Connector

12 ASUS SP97 / SP97-V User’s Manual
III. INSTALLATION
ASUS SP97 Motherboard Layout
(Motherboard Layout)
III. INSTALLATION
Power Fan
ATX Power Input
Secondary IDE
Primary IDE
Flash BIOS
USB, PS/2
Mouse, IrDA
IDE LED
Floppy Drives
Key-
board
Infrared
CPU Fan
ISA Slot 3 ISA Slot 2 ISA Slot 1
SIMM Socket 1 (32-bit, 72-pin module) SIMM Socket 2 (32-bit, 72-pin module) SIMM Socket 3 (32-bit, 72-pin module) SIMM Socket 4 (32-bit, 72-pin module)
01 23 23 Row 01
CPU ZIF Socket 7
AT Power Input
P8 P9
Parallel Port
Serial Ports
COM 2
COM 1
Super Multi-I/O
SiS 5582
Chipset
or
SiS 5598
Chipset
CR2032 3Volts
Lithium Cell
BIOS Power
CPU Voltage
VID0
VID1
VID2
Freq. Ratio
BF0 BF1
Panel Connectors
Clock Freq.
FS3
Clock Freq
FS1
FS2
FS0
Switching
Voltage
Regulators
512KB/256KB Pipelined Burst L2 Cache
Feature Connector
VGA Connector
VGA
Select
VGA
Select 1
NOTE: Outlined components are available only on motherboards with onboard VGA.
Chassis Fan
BF2
RTC Clear / Battery Test
PCI Slot 1 PCI Slot 2 PCI Slot 3 PCI Slot 4
R

ASUS SP97 / SP97-V User’s Manual 13
III. INSTALLATION
Jumpers
1) RTCLR p. 15 RealTimeClockRAM(KeepCMOS/ClearCMOS)
2) VID0, VID1, VID2 p. 16 CPU Voltage Output Selection
3) FS0, FS1, FS2, FS3 p. 16 CPU External Frequency (BUS) Selection
4) BF0, BF1, BF2 p. 16 CPU to BUS Frequency Ratio
5) VGA_ SEL/_SEL1 (optional) p. 18 Onboard VGASetting
6) VGA_INT (optional) p. 18 Onboard VGA Interrupt Selection
Expansion Slots
1) System Memory p. 20 System Memory (SIMM)
2) SIMM1,SIMM2, SIMM3,SIMM4 p. 21 72-Pin SIMM Sockets
3) CPU p. 23 Central Processing Unit (CPU) Socket
4) PCI1, PCI2, PCI3, PCI4 p. 24 32-bit PCI Bus Expansion Slots
5) SLOT1, SLOT2, SLOT3 p. 24 16-bit ISA Bus Expansion Slots
Connectors
1) KBCON p. 26 Keyboard Connector (5-pin female)
2) FLOPPY p. 26 Floppy Disk Drive Connector (34-pin block)
3) PRINTER p. 27 Parallel Port Connector (26-pin block)
4) COM1, COM2 p. 27 Serial Port Connectors (10-pin blocks)
5) PWR_FAN, CPU_FAN, CHA_FAN p. 28 Power Supply, CPU & Chassis Fan Power Leads
6) PRIMARYIDE,SECONDARYIDE p. 28 Primary/Secondary IDEConnectors (40-pinblocks)
7) MSG.LED (PANEL) p. 29 Message LED Lead (2 pins)
8) SMI (PANEL) p. 29 SMI Suspend Switch Lead (2 pins)
9) PWR.SW (PANEL) p. 29 ATXPowerSwitch/SoftPower SwitchLead(2pins)
10) RESET (PANEL) p. 29 Reset Switch Lead (2 pins)
11)
PWR.LED (PANEL) p. 29 System Power LED Lead (3 pins)
12)
KEYLOCK (PANEL) p. 29 Keyboard Lock Switch Lead (2 pins)
13) SPEAKER (PANEL) p. 29 Speaker Output Connector (4 pins)
14) USB_IR_MOUSE p. 29 USB,Infrared, PS/2Mouse ModuleConnector(18-pinblock)
15) IR p. 30 SecondIrDA-CompliantInfraredConnector(5-pinblock)
16) POWER p. 30 AT Power Supply Connector (12-pin block)
17) ATXPWR p. 31 ATX Power Supply Connector (20-pin block)
18) IDELED p. 32 IDE Activity LED (2 pins)
19) VGACON (optional) p. 32 VGA Connector (16-pin block)
20) FEATURE p. 33 Video Feature Connector (28-pin block)
(Motherboard Layout)
III. INSTALLATION

14 ASUS SP97 / SP97-V User’s Manual
III. INSTALLATION
(Jumpers)
III. INSTALLATION
Installation Steps
Before using your computer, you must complete the following steps:
1. Set Jumpers on the Motherboard
2. Install DRAM Modules
3. Install the Central Processing Unit (CPU)
4. Install Expansion Cards
5. Connect Ribbon Cables, Cabinet Wires, and Power Supply
6. Set Up the BIOS Software
1. Jumpers
Several hardware settings are made through the use of jumper caps to connect the
jumper pins on the motherboard. See layout of motherboard on page 12 for locations
of jumpers. The jumper settings will be described numerically, such as [----], [1-2],
[2-3] for no connection, connect pins 1 & 2, and connect pins 2 & 3, respectively.
Pin 1 is always on top
Pin 1
or on the left
Pin 1
when holding the motherboard with
the keyboard connector away from you. A “1” is written beside pin 1 on jumpers
with three pins. The jumpers will also be shown graphically as to connect
pins 1 & 2 and to connect pins 2 & 3. Jumpers with two pins will be shown as
for Short (On) and for Open (Off). For manufacturing simplicity, the jump-
ers may be sharing pins from other groups. Use the diagrams in this manual instead
of following the pin layout on the board. Settings with two jumper numbers require
that both jumpers be moved together. To connect the pins, simply place a plastic
jumper cap over the two pins as diagramed.
WARNING!Computer motherboardsandcomponents,suchas sound cards,con-
tain very delicate Integrated Circuit (IC) chips. To protect them against damage
from static electricity, you must follow some precautions whenever you work on
your computer.
1. Unplug your computer when working on the inside.
2. Use a grounded wrist strap before handling computer components. If you do
not have one, touch both of your hands to a safely grounded object or to a
metal object, such as the power supply case.
3. Hold components by the edges and try not to touch the IC chips, leads, or
circuitry.
4. Place components on a grounded antistatic pad or on the bag that came with
the component whenever the components are separated from the system.

ASUS SP97 / SP97-V User’s Manual 15
III. INSTALLATION
Jumper Settings
1. Real Time Clock (RTC) RAM (RTCLR)
The CMOS RAM is powered by the onboard button cell battery. To clear the
RTC data: (1) Turn off your computer and unplug the AC power, (2) Move this
jumper to Clear CMOS, (3) Move the jumper back to Normal Set., (4) Turn on
your computer, (5) Hold down <Delete> during bootup and enter BIOS setup to
re-enter user preferences.
Battery Test Jumper (BAT_TEST)
You can test the battery’s current by removing this jumper and attaching a cur-
rent meter to pins 1 & 2.
WARNING! You must unplug the power cord to your power supply to ensure that
there is no power to your motherboard. The CMOS RAM containing BIOS setup
information may be cleared by this action. You must enter BIOS to “Load Setup
Defaults”andreenteranyuserinformationafterremovingandreapplyingthisjumper.
RTC RAM RTCLR
Normal Set. [1-2] (Default)
Clear CMOS [2-3] (momentarily)
Real Time Clock (RTC) RAM
Clear CMOS
Normal Setting (Default)
RTCLR
Battery Test
RTCLR
R
III. INSTALLATION
(Jumpers)

16 ASUS SP97 / SP97-V User’s Manual
III. INSTALLATION
(Jumpers)
III. INSTALLATION
Compatible Cyrix CPU Identification
The only Cyrix processor that is supported on this motherboard
is labeled Cyrix 6x86-P166+, which should be Revision 2.7 or
later. Look on the underside of the CPU for the serial number,
which should read G8DC6620A or later.
2. CPU Voltage Output Selection (VID0, VID1, VID2)
Thesejumpersset the voltage supplied to the CPU.Thevoltageregulatorswillauto-
matically detect and switch between Single Power Plane & Dual Power Planes.
Intel Pentium (P54C)
(75MHz-200MHz)
Pentium MMX (P55C)
(150MHz-233MHz) AMD-K6 (PR166 and faster) AMD-K5 (PR75-PR133) IBM/Cyrix 6x86(MX) (PR166 and faster) IBM/Cyrix 6x86(M1) (PR166 and faster)
Manufacturer CPU Type Single Plane Dual Plane VID0 VID1 VID2
Intel/AMD/IBM/Cyrix P54C/CS/K5/6x86 3.5V(VRE) ---- [1-2] [1-2] [2-3]
AMD K6-PR166,200 ---- 2.9 Volts [1-2] [2-3] [2-3]
Intel/AMD P54C/CS/K5 3.4V(STD) ---- [2-3] [2-3] [2-3]
Intel/IBM/Cyrix P55C/6x86MX ---- 2.8 Volts [2-3] [2-3] [2-3]
AMD K6-PR233 ---- 3.2 Volts [2-3] [2-3] [1-2]
CPU Vcore Voltage ID Selection
R
Dual Plane P55C/MX
(2.8Volts) K6-166/200
(2.9Volts) P54C/CS/6x86
(3.5V) (VRE)
P54C/CS/K5
(3.4V) (STD)
Single Plane
K6-233
(3.2Volts)
1 2 3
VID1
VID2
VID0
1 2 3 1 2 3 1 2 3

ASUS SP97 / SP97-V User’s Manual 17
III. INSTALLATION
(Jumpers)
III. INSTALLATION
3. CPU External Frequency (BUS) Selection (FS0, FS1, FS2, FS3)
These jumpers tell the clock generator what frequency to send to the CPU. These allow
the selection of the CPU’s external frequency (or BUS Clock). The BUS Clock multi-
pliedbytheBUSRatioequalstheCPU’sinternalfrequency(theadvertisedCPUspeed).
When BUS Frequency is set to 75MHz or more, the PCI Frequency Selector
(FS3) must be set to asynchronous PCI mode to maintain PCI signal stability.
4. CPU to BUS Frequency Ratio (BF0, BF1, BF2)
These jumpers set the frequency ratio between the internal frequency of the CPU
and the external frequency (called the BUS Clock) within the CPU.These must be
set together with the jumpers for CPU External (BUS) Frequency Selection.
CPU External Clock (BUS) Frequency Selection
CPU : BUS Frequency Ratio
P54C/K5
P55C/K6/MX
IBM/Cyrix6x86
1
2
3
Complete Names:
Intel Pentium P54C, P55C-MMX
AMD K5, K6
IBM/Cyrix 6x86(M1), 6x86MX(M2)
R
1.5x(3/2)
3.5x(7/2)
3.0x(3/1)
BF1 BF2 BF0
2.0x(2/1)
2.0x(2/1)
2.0x(2/1)
BF1 BF2 BF0
2.5x(5/2)
2.5x(5/2)
1.0x(1/1)
BF1 BF2 BF0
3.0x(3/1)
3.0x(3/1)
4.0x(4/1)
BF1 BF2 BF0
----
4.5x(9/2)
----
BF1 BF2 BF0
----
4.0x(4/1)
----
BF1 BF2 BF0
75MHz
1 2 3
FS1
FS0
FS2
FS3
1
2
3
66MHz
1 2 3
FS1
FS0
FS2
FS3
1
2
3
60MHz
1 2 3
FS1
FS0
FS2
FS3
1
2
3
50MHz
FS1
FS0
FS2
1 2 3
FS3
1
2
3Sync Sync
Sync ASync

18 ASUS SP97 / SP97-V User’s Manual
(Jumpers)
III. INSTALLATION
III. INSTALLATION
Set the jumpers according to the internal speed of your processor as follows:
CPU Model Freq. Ratio BUS Freq. FS0 FS1 FS2 FS3 BF0 BF1 BF2
Intel Pentium 233MHz 3.5x 66MHz [2-3] [1-2] [2-3] [1-2] [1-2] [1-2] [1-2]
Intel Pentium 200MHz 3.0x 66MHz [2-3] [1-2] [2-3] [1-2] [1-2] [2-3] [1-2]
Intel Pentium 166MHz 2.5x 66MHz [2-3] [1-2] [2-3] [1-2] [2-3] [2-3] [1-2]
Intel Pentium 150MHz 2.5x 60MHz [1-2] [2-3] [2-3] [1-2] [2-3] [2-3] [1-2]
Intel Pentium 133MHz 2.0x 66MHz [2-3] [1-2] [2-3] [1-2] [2-3] [1-2] [1-2]
Intel Pentium 120MHz 2.0x 60MHz [1-2] [2-3] [2-3] [1-2] [2-3] [1-2] [1-2]
Intel Pentium 100MHz 1.5x 66MHz [2-3] [1-2] [2-3] [1-2] [1-2] [1-2] [1-2]
Intel Pentium 90MHz 1.5x 60MHz [1-2] [2-3] [2-3] [1-2] [1-2] [1-2] [1-2]
Intel Pentium 75MHz 1.5x 50MHz [2-3] [2-3] [2-3] [1-2] [1-2] [1-2] [1-2]
AMD-K6-PR233 233MHz 3.5x 66MHz [2-3] [1-2] [2-3] [1-2] [1-2] [1-2] [1-2]
AMD-K6-PR200 200MHz 3.0x 66MHz [2-3] [1-2] [2-3] [1-2] [1-2] [2-3] [1-2]
AMD-K6-PR166 166MHz 2.5x 66MHz [2-3] [1-2] [2-3] [1-2] [2-3] [2-3] [1-2]
AMD-K5-PR133 100MHz 1.5x 66MHz [2-3] [1-2] [2-3] [1-2] [1-2] [1-2] [1-2]
AMD-K5-PR120 90MHz 1.5x 60MHz [1-2] [2-3] [2-3] [1-2] [1-2] [1-2] [1-2]
AMD-K5-PR100 100MHz 1.5x 66MHz [2-3] [1-2] [2-3] [1-2] [1-2] [1-2] [1-2]
AMD-K5-PR90 90MHz 1.5x 60MHz [1-2] [2-3] [2-3] [1-2] [1-2] [1-2] [1-2]
AMD-K5-PR75 75MHz 1.5x 50MHz [2-3] [2-3] [2-3] [1-2] [1-2] [1-2] [1-2]
IBM/Cyrix 6x86MX-PR233 200MHz 3.0x 66MHz [2-3] [1-2] [2-3] [1-2] [1-2] [2-3] [1-2]
IBM/Cyrix 6x86MX-PR200 166MHz 2.5x 66MHz [2-3] [1-2] [2-3] [1-2] [2-3] [2-3] [1-2]
IBM/Cyrix 6x86MX-PR166 150MHz 2.5x 60MHz [1-2] [2-3] [2-3] [1-2] [2-3] [2-3] [1-2]
IBM/Cyrix 6x86L-P200+ 150MHz 2.0x 75MHz [1-2] [2-3] [1-2] [2-3] [2-3] [1-2] [1-2]
*IBM/Cyrix 6x86-PR166+ 133MHz 2.0x 66MHz [2-3] [1-2] [2-3] [1-2] [2-3] [1-2] [1-2]
*NOTE: Only IBM or Cyrix Rev 2.7 or later is supported on this motherboard (see preceding page).
Bootup screen will show 6x86-P166+ with the Cyrix PR166+ installed on this motherboard.
(BUS Freq.) (Freq. Ratio)

ASUS SP97 / SP97-V User’s Manual 19
III. INSTALLATION
5. VGASelection (VGA_SEL & VGA_SEL1) (with onboard VGAversion only)
Thesejumpersallow you to turn the onboardVGAon or off. You need to disable
the onboard VGA to use your own add-on VGA expansion card.
R
Enable VGA
(Default)
VGA_SEL VGA_SEL1 VGA_INT
Disable VGA
VGA_SEL VGA_SEL1 VGA_INT
Onboard VGA
6. VGASelection (VGA_INT) (with onboard VGAversion only)
These jumpers allow you to set the VGAinterrupt method. The default disables
the chipset’s internal interrupt routing. Some video capture cards may require
that the interrupt be assigned by the onboard chipset.
R
Interrupt by Chipset
(Video Capture Cards)
VGA_SEL VGA_SEL1 VGA_INT
Interrupt Disabled
(Default)
VGA_SEL VGA_SEL1 VGA_INT
Onboard VGA Interrupt
(Jumpers)
III. INSTALLATION

20 ASUS SP97 / SP97-V User’s Manual
III. INSTALLATION
(System Memory)
III. INSTALLATION
2. System Memory (SIMM)
This motherboard supports four 72-pin, 32-bit SIMMs (Single Inline Memory Mod-
ules) of 4, 8, 16, 32, or 64MB to form a memory size between 8MB to 256MB. The
SIMMs can be either 60ns or 70ns Fast Page Mode (FPM) (Asymmetric or Sym-
metric),orExtended Data Output (EDO) (BEDO & Parity are notsupported).SIMMs
must be installed in pairs so that each Row (refer to motherboard layout for Row
locations) contains 64-bits of the same size and type of memory chips. One side
(with memory chips) of the SIMM module takes up half a Row on the motherboard.
IMPORTANT: Memory speed is set up through “Auto Configuration” in the BIOS
Chipset Setupof the BIOSSOFTWARE. If both 60ns and 70ns memory are used, set
“Auto Configuration” to 70ns. Do not use memory modules with more than 24 chips
per module. Modules with more than 24 chips exceed the design specifications of the
memory subsystem and will be unstable.
Memory Socket SIMM Memory Module Total Memory
SIMM Sockets 1&2 4MB, 8MB, 16MB, 32MB, 64MB x2
(Rows 0 & 1) 72-pin FPM or EDO SIMM
(DIMM Sockets must be empty)
SIMM Sockets 3&4 4MB, 8MB, 16MB, 32MB, 64MB x2
(Rows 2 & 3) 72-pin FPM or EDO SIMM
(DIMM Sockets must be empty)
Total System Memory (Max 256MB) =
IMPORTANT: For the SiS 5598 chipset with VGA, SIMM Sockets 1&2 must be
filled before Sockets 3&4. Sockets 3&4 may be filled before 1&2 for other chipsets.