Asus P2L97-S User manual

Brand: Asus

Model: P2L97-S

Category: Motherboards

Type: User manual

P2L97-S

Pentium

II Motherboard

USER’S MANUAL

ASUS P2L97-S User’s Manual

USER'S NOTICE

Product Name: ASUS P2L97-S

Manual Revision: 2.01

Release Date: April 1998

No part of this manual, including the products and software 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 purposes,

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 NOT LIMITED TO THE IMPLIED

WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PAR-

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 BEEN ADVISED OF THE POSSIBILITY

OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL

OR PRODUCT.

Product warranty or service will not be extended if: (1) the product is repaired, modified or

altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2)

the serial number of the product is defaced or missing.

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 product itself. Manual revi-

sions are released for each product 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, contact ASUS

at http://www.asus.com.tw or through any of the means indicated on the following page.

SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE 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 RESPONSIBILITY OR LIABILITY FOR

ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUD-

ING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.

ASUS P2L97-S User’s Manual 3

ASUS CONTACT INFORMATION

ASUSTeK COMPUTER INC.

Marketing

Address: 150 Li-Te Road, Peitou, Taipei, Taiwan 112

Telephone: +886-2-2894-3447

Fax: +886-2-2894-3449

Email: [email protected]

Technical Support

Fax: +886-2-2895-9254

BBS: +886-2-2896-4667

Email: [email protected]

WWW: www.asus.com.tw

FTP: ftp.asus.com.tw/pub/ASUS

ASUS COMPUTER INTERNATIONAL

Marketing

Address: 6737 Mowry Ave, Mowry Business Center, Building 2,

Newark, CA 94560, USA

Fax: +1-510-608-4555

Email: [email protected]

Technical Support

Fax: +1-510-608-4555

BBS: +1-510-739-3774

Email: [email protected]

WWW: www.asus.com

FTP: ftp.asus.com.tw/pub/ASUS

ASUS COMPUTER GmbH

Marketing

Address: Harkort Str. 25, 40880 Ratingen, BRD, Germany

Telephone: 49-2102-445011

Fax: 49-2102-442066

Email: [email protected]

Technical Support

Hotline: 49-2102-499712

BBS: 49-2102-448690

Email: [email protected]

WWW: www.asuscom.de

FTP: ftp.asuscom.de/pub/ASUSCOM

ASUS P2L97-S User’s Manual

CONTENTS

I. INTRODUCTION 7

How this Manual is Organized ........................................................... 7

Item Checklist ..................................................................................... 7

II. FEATURES 8

Features of the ASUS P2L97-S Motherboard..................................... 8

The ASUS P2L97-S Motherboard ................................................ 9

III. INSTALLATION 10

Layout of the ASUS P2L97-S Motherboard..................................... 10

Installation Steps............................................................................... 12

1. Jumpers ......................................................................................... 12

Jumper Settings ..................................................................... 13

2. System Memory (DIMM) ............................................................ 17

DIMM Memory Installation Procedures: .............................. 18

3. Central Processing Unit (CPU).................................................... 19

Pentium II Processor.............................................................. 19

AAVID Heatsink ................................................................... 23

Elan Vital Heatsink................................................................ 23

4. Expansion Cards ........................................................................... 24

Expansion Card Installation Procedure ................................. 24

Assigning IRQs for Expansion Cards.................................... 24

Assigning DMA Channels for ISA Cards.............................. 25

ISA Cards and Hardware Monitor......................................... 25

Accelerated Graphics Port ..................................................... 25

5. External Connectors..................................................................... 26

Power Connection Procedures .................................................... 33

IV. BIOS SOFTWARE 34

Support Software......................................................................... 34

Flash Memory Writer Utility....................................................... 34

Main Menu ............................................................................ 35

Advanced Features Menu ...................................................... 35

Managing & Updating your Motherboard’s BIOS...................... 36

6. BIOS Setup .................................................................................. 37

Load Defaults ........................................................................ 38

Standard CMOS Setup ................................................................ 38

Details of Standard CMOS Setup:......................................... 38

BIOS Features Setup ................................................................... 41

Details of BIOS Features Setup............................................. 41

ASUS P2L97-S User’s Manual 5

CONTENTS

VIII. ADAPTEC 7800 FAMILY MANAGER SET (84 pages)

(Drivers for onboard Adaptec 7880 SCSI Chipset)

Chipset Features Setup ................................................................ 44

Details of Chipset Features Setup.......................................... 44

Power Management Setup........................................................... 47

Details of Power Management Setup .................................... 47

PNP and PCI Setup ..................................................................... 50

Details of PNP and PCI Setup ............................................... 50

Load BIOS Defaults .................................................................... 52

Load Setup Defaults .................................................................... 52

Supervisor Password and User Password ................................... 53

IDE HDD Auto Detection ........................................................... 54

Save & Exit Setup ....................................................................... 55

Exit Without Saving .................................................................... 55

V. DESKTOP MANAGEMENT 56

Desktop Management Interface (DMI)............................................. 56

Introducing the ASUS DMI Configuration Utility ................ 56

System Requirements ............................................................ 56

Using the ASUS DMI Configuration Utility ......................... 57

VI. ADAPTEC SCSI SELECT 59

Configuring the SCSI Adapter .......................................................... 59

Configure/View Host Adapter Settings ................................. 59

SCSI Disk Utilities ...................................................................... 59

VII. ADAPTEC EZ-SCSI UTILITY 61

Quick Start Instructions .................................................................... 61

Windows95 or WindowsNT ........................................................ 61

Windows/Windows for Workgroups 3.1x ................................... 61

DOS............................................................................................. 61

Troubleshooting Tips ........................................................................ 62

SCSI Device Troubleshooting..................................................... 62

Windows95/WindowsNT Troubleshooting ................................. 62

Information for DOS/Windows 3.1x Users ...................................... 65

DOS and Windows3.1x Device Drivers...................................... 65

DOS and Windows3.1x ASPI Managers..................................... 65

DOS Formatting Utilities ............................................................ 66

Low-level Formatter (scsifmt)............................................... 66

Formatter and Partitioner (afdisk) ......................................... 67

ASUS P2L97-S 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 inter-

ference 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 Cana-

dian Department of Communications.

ASUS P2L97-S User’s Manual 7

How this Manual is Organized

This manual is divided into the following sections:

I. Introduction Manual information and checklist

II. Features Information and specifications

III. Installation Instructions on setting up the motherboard.

IV. BIOS Software Instructions on setting up the BIOS software

V. DMI Utility BIOS supported Desktop Management Interface

VI. Adaptec SCSI Select Adaptec SCSI Select utility

VII. Adaptec EZ-SCSI Adaptec EZ-SCSI utility

VIII. Adaptec 7800 Adaptec SCSI driver installation and usage

Item Checklist

Check that your package is complete. If you discover damaged or missing items,

contact your retailer.

ASUS P2L97-S motherboard

Retention mechanism & heatsink support

1 IDE ribbon cable

1 floppy ribbon cable

50-pin Fast SCSI cable

ASUS P2L97-S Support Drivers & Utilities

• Flash Memory Writer utility to update the FLASH BIOS

• Desktop Management Interface (DMI) utility

• LANDesk

Client Manager (LDCM) Software (with optional onboard LM78)

• Adaptec SCSI drivers and utilities

• Readme files for descriptions and use of the files

• Technical Support Form

This user’s manual

Infrared module (optional)

68-Pin Fast&Wide-SCSI cable (optional)

I. INTRODUCTION

(Manual / Checklist)

8 ASUS P2L97-S User’s Manual

Features of the ASUS P2L97-S Motherboard

The ASUS P2L97-S is carefully designed for the demanding PC user who wants

many features processed by the fastest CPU. This motherboard:

• Versatile Processor Support: Intel Pentium

II (233MHz–333MHz) processor.

• Intel Chipset: Features Intel’s 440LX AGPset with I/O subsystems.

• Adaptec SCSI Chipset: Features Adaptec’s 7880 Ultra-Fast/Wide SCSI chipset.

• Easy Installation: Equipped with BIOS that supports auto detection of hard

drives, PS/2 mouse, and Plug and Play devices to make setup of hard drives,

expansion cards, and other devices virtually automatic.

• ISA & PCI Expansion Slots: Provides one 16-bit ISA, three 32-bit PCI slots, and

one ISA/PCI shared slot.

• Super Multi-I/O: Provides two high-speed UART compatible serial ports and

one parallel port with EPP and ECP capabilities. UART2 can also be directed from

COM2 to the Infrared Module for wireless connections.

• 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 PCI Bus Master IDE

controller with two connectors that supports four IDE devices in two channels,

supports PIO Modes 3 and 4 and Bus Master IDE DMA Mode 2, and supports

Enhanced IDE devices, such as Tape Backup and CD-ROM drives. Two floppy

drives of either 5.25inch or 3.5inch (1.44MB or 2.88MB) are also supported with-

out an external card. Supports Japanese standard “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 boot-up.

• Multi-Cache: Supports a Pentium

II processor with either 512KB, 256KB, or

0KB Pipelined Burst Level 2 cache in the Single Edge Contact (SEC) cartridge.

• Versatile Memory Support: Equipped with three DIMM sockets to support

(8, 16, 32, 64, or 128MB) 168-pin SDRAM/EDO memory modules up to 384MB.

• IrDA: Supports an optional infrared port module for wireless interface.

• Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI master

busses to memory to CPU.

• AGP: Supports Accelerated Graphics Port cards for high performance, compo-

nent level interconnect targeted at 3D graphical display applications.

• Intelligence: Supports Fan Status Monitoring and Alarm, Temperature Moni-

toring and Alert, Voltage Monitoring and Alert, System Resources Alert, and

Virus Write Protection through the optional onboard LM78 Hardware Monitor

and Intel

LANDesk Client Manager (LDCM) software.

II. FEATURES

(Specifications)

II. FEATURES

ASUS P2L97-S User’s Manual 9

The ASUS P2L97-S Motherboard

II. FEATURES

(Motherboard Parts)

USB Port 1 (Top)

USB Port 2 (Bottom)

COM 2

(Bottom)

Programmable

2MB Flash ROM

3 PCI Slots

Accelerated

Graphics Port

1 ISA Slot

1 ISA/PCI

Shared Slot

PS/2 Mouse (Top)

PS/2 K’board (Bottom)

Parallel (Top)

Serial (Bottom)

3 DIMM

Sockets

Intel 440LX AGPset

Hardware

Monitor

Multi-I/O

Floppy Disk Drive

Connector

SEC CPU Slot

COM 1

(Bottom)

Narrow/Wide SCSI Connectors

Adaptec’s 7880

Ultra-Fast/Wide

SCSI Chipset

Intel PIIX4 PCIset

10 ASUS P2L97-S User’s Manual

III. INSTALLATION

Layout of the ASUS P2L97-S Motherboard

PWR_FAN

CPU_FAN

LM78

IrDA

HDLED

CHA_FAN

USB

PS/2

WOL_CON

SCSI

BUS FREQ

FS0

FS1

FS2

COM 2

COM 1

CLRTC

FREQ

RATIO

BF0

BF1

BF2

BF3

R_MB1

R_CPU

Thermal

Sensor

PCI Slot 1

PCI Slot 2

PCI Slot 3

PCI Slot 4

2MB Flash EEPROM

(Programable BIOS)

Hardware

Monitor

ISA Slot 1

ISA Slot 2

Panel Connect.

Intel PIIX4

PCIset

Floppy Disk Drives

Accelerated Graphics Port

Intel

440LX

AGPset

Single Edge Contact CPU Slot

(DIMM Socket 3 (64 bit, 168 pin module)

(DIMM Socket 2 (64 bit, 168 pin module)

(DIMM Socket 1 (64 bit, 168 pin module)

BIOS Power

(CR2032 3V

Lithium Cell)

Secondary IDE

Primary IDE

Adaptec

7880 SCSI

Chipset

50-Pin SCSI Connector

ATX Power Connector

Mouse (top port)

Keyboard (bottom port)

USB 1 (top port)

USB 2 (bottom port)

Parallel Port

68-Pin Wide SCSI

Multi-I/O

(Board Layout)

III. INSTALLATION

ASUS P2L97-S User’s Manual 11

III. INSTALLATION

Jumpers

1) SCSI p. 13 Onboard SCSI Setting

2) FS0, FS1, FS2 p. 14 CPU Bus Frequency

3) BF0, BF1, BF2, BF3 p. 14 CPU Core:Bus Frequency Multiple

4) CLRTC p. 15 Clear Real Time Clock (RTC) RAM

Expansion Slots/Sockets

1) System Memory p. 17 System Memory Support

2) DIMM Sockets p. 18 DIMM Memory Module Support

3) SEC CPU Slot p. 19 Single Edge Contact CPU Support

4) SLOT1, SLOT2 p. 24 16-bit ISA Bus Expansion Slots

5) PCI1, PCI2, PCI3, PCI4 p. 25 32-bit PCI Bus Expansion Slots

†

6) AGP p. 25 Accelerated Graphics Port

Hardware Monitor

1) R_CPU p. 22 Pentium II Processor Thermal Sensor Connector

Connectors

1) PS2KEYBOARD p. 26 PS/2 Keyboard Connector (6-pin female)

2) PS2MOUSE p. 26 PS/2 Mouse Connector (6-pin female)

3) PRINTER p. 27 Parallel (Printer) Port Connector (25-pin female)

4) COM1, COM2 p. 27 Serial Port COM1 & COM2 (two 9-pin male)

5) FLOPPY p. 27 Floppy Drive Connector (34-1 pin block)

6) USB p. 28 Universal Serial BUS Ports 1 & 2 (two 4-pin female)

7) Primary / Second IDE p. 28 Primary / Secondary IDE Connector (40-pin blocks)

8) HDLED p. 29 IDE LED Activity Light (2 pins)

9) CHA_, CPU_, PWR_FAN p. 29 Chassis, CPU, Power Supply Fan Connectors (3-pin block)

10) IR p. 30 Infrared Port Module Connector (5 pins)

11) ATXPWR p. 30 ATX Motherboard Power Connector (20-pin block)

12) WOL p. 31 Wake on LAN (3 pins) (Reserved)

13) NARROW/WIDE SCSI p. 31 50-pin Fast SCSI II & 68-pin Fast&Wide SCSI III

14) TB_LED (PANEL) p. 32 LED Lead (2 pins)

15) SMI (PANEL) p. 32 SMI Switch Switch Lead (2 pins)

16) PWR_SW (PANEL) p. 32 ATX Power Switch / Soft Power Switch (2 pins)

17) RESET (PANEL) p. 32 Reset Switch Lead (2 pins)

18)

KEYLOCK (

PANEL

)

p. 32 System Power LED (3 pins)

19)

KEYLOCK (

PANEL

)

p. 32 Keyboard Lock Switch Lead (2 pins)

20) SPEAKER (PANEL) p. 32 Speaker Connector (4 pins)

The onboard hardware monitor uses the address 290H-297H so legacy ISA cards must not

use this address or else conflicts will occur.

†

PCI slots 4 share the same interrupt number (INT#) as the onboard SCSI so PCI slot 4 card

must be able to share an INT# or make sure that it does not use an INT# at all.

(Board Layout)

III. INSTALLATION

12 ASUS P2L97-S User’s Manual

III. INSTALLATION

(Jumpers)

III. INSTALLATION

Installation Steps

Before using your computer, you must complete the following steps:

1. Set Jumpers

2. Install Memory Modules

3. Install the Central Processing Unit (CPU)

4. Install Expansion Cards

5. Connect Ribbon Cables, Cabinet Wires, and Power Supply

6. Setup the BIOS Software

1. Jumpers

Several hardware settings are made through the use of jumper caps to connect jumper

pins (JP) on the motherboard. See motherboard layout on page 10 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

for our motherboards is always on top

PIN 1

or on the left

PIN 1

when holding the

motherboard with the keyboard connector away from yourself. A “1” is written

besides pin 1 on jumpers with three pins. The jumpers will also be shown graphi-

cally such 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 jumpers 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 motherboards and expansion cards contain very delicate

Integrated Circuit (IC) chips. To protect them against damage from static electric-

ity, you should 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

connectors, or other components.

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 P2L97-S User’s Manual 13

III. INSTALLATION

(Jumpers)

Jumper Settings

1. Onboard SCSI Setting (SCSI)

This motherboard gives you the option of using the onboard Adaptec 7880 SCSI

BIOS through either the PnP and PCI Setup of the BIOS SOFTWARE or the

use of jumper caps.

Selection SCSI

Enable [1-2]

Disable [2-3]

Enable

SCSI

Disable

SCSI

P2L97-S SCSI Setting

123 123

14 ASUS P2L97-S User’s Manual

III. INSTALLATION

(Jumpers)

III. INSTALLATION

CPU Bus Frequency

60MHz 66MHz 75MHz 83MHz

CPU Core:Bus Frequency Multiple

4.5x(9/2)4.0x(4/1)3.5x(7/2)2.0x(2/1) 5.0x(5/1)

BF2

BF1

BF3

BF0

BF2

BF1

BF3

BF0

BF2

BF1

BF3

BF0

BF2

BF1

BF3

BF0

BF2

BF1

BF3

BF0

FS1

FS0

FS2

FS1

FS0

FS2

FS1

FS0

FS2

FS1

FS0

FS2

P2L97-S CPU Settings

2. CPU Bus Frequency (FS0, FS1, FS2)

This option tells the clock generator what frequency to send to the CPU. This allows the

selection of the CPU’s External frequency (or BUS Clock). The BUS Clock multiplied

by the BUS Ratio equals the CPU’s Internal frequency (the advertised CPU speed).

3. CPU Core:BUS Frequency Multiple (BF0, BF1, BF2, BF3)

This option sets the frequency ratio between the Internal frequency of the CPU

and the CPU’s External frequency. These must be set in conjunction with the

CPU Bus Frequency.

Intel Pentium II Processor in a SEC Cartridge

(233-333MHz 512KB/256KB/0KB L2 Cache)

WARNING! Frequencies above 66Mhz exceed the specifications for the onboard

Intel Chipset and are not guaranteed to be stable.

Set the jumpers by the Internal speed of your processor as follows:

(BUS Freq.) (Freq. Ratio)

CPU Model Freq. Ratio BUS F. FS2 FS1 FS0 BF3 BF2 BF1 BF0

Intel Pentium II 333MHz 5.0x 66MHz [1-2] [1-2] [1-2] [2-3] [1-2] [1-2] [2-3]

Intel Pentium II 300MHz 4.5x 66MHz [1-2] [1-2] [1-2] [2-3] [1-2] [2-3] [1-2]

Intel Pentium II 266MHz 4.0x 66MHz [1-2] [1-2] [1-2] [2-3] [1-2] [2-3] [2-3]

Intel Pentium II 233MHz 3.5x 66MHz [1-2] [1-2] [1-2] [2-3] [2-3] [1-2] [1-2]

IMPORTANT: Do not set the Frequency Ratio (BF) jumpers to all [2-3], this will

cause unexpected behaviors.

NOTES: Overclocking your processor is not recommended. It may result in a slower

speed. Voltage Regulator Output Selection (VID) is not needed for the Pentium II

processor because it sends a VID signal directly to the onboard power controller.

ASUS P2L97-S User’s Manual 15

III. INSTALLATION

(Jumpers)

4. Real Time Clock (RTC) RAM (CLRTC)

The CMOS RAM is powered by the onboard button cell battery. To clear the

RTC data: (1) Turn off your computer and unplug its AC power, (2) Short the

two solder points labeled CLRTC, (3) Turn on your computer, (4) Hold down

<Delete> during bootup and enter BIOS setup to re-enter user preferences.

Short the solder points to clear CMOS

P2L97-S Real Time Clock RAM (CLRTC)

CLRTC

16 ASUS P2L97-S User’s Manual

(Jumpers)

III. INSTALLATION

(This page was intentionally left blank)

ASUS P2L97-S User’s Manual 17

2. System Memory (DIMM)

Only Dual Inline Memory Modules (DIMM’s) can be used with this motherboard.

Two sockets are available for 3.3Volt (power level) Unbuffered Synchronous DRAMs

(SDRAM) or EDO DRAM of either 8, 16, 32, 64, or 128MB to form a memory size

between 8MB to 384MB. One side (with memory chips) of the DIMM module

takes up one Row on the motherboard.

To utilize the chipset’s Error Checking and Correction (ECC) feature, you must use

a DIMM module with 9 chips per side (standard 8 chips/side + 1 parity chip) and

make the proper settings in the BIOS Chipset Features Setup.

IMPORTANT: Memory speed setup is required through "Auto Configura-

tion" in BIOS Chipset Features Setup.

Install memory in any combination as follows:

DIMM Location 168-pin DIMM Memory Modules Total Memory

Socket 1 (Rows 0&1) SDRAM/EDO 8, 16, 32, 64, 128MB x1

Socket 2 (Rows 2&3) SDRAM/EDO 8, 16, 32, 64, 128MB x1

Socket 3 (Rows 4&5) SDRAM/EDO 8, 16, 32, 64, 128MB x1

Total System Memory (Max 384MB) =

Parity EDO DIMM (9 chips)

Non-Parity SDRAM DIMM (8 chips)

General DIMM Notes: (not true for all memory modules)

• Four possible memory chips are supported: EDO or SDRAM with and without parity.

• SDRAM chips are generally thinner with higher pin density than EDO chips.

• BIOS shows EDO or SDRAM memory on bootup screen.

• 8 chip/side modules do not support parity, only 9 chip/side modules support parity.

• Single sided modules are usually 16 or 64 MB, double sided are usually 8, 32, or 128MB.

ASUS Memory Examples:

III. INSTALLATION

(System Memory)

18 ASUS P2L97-S User’s Manual

(System Memory)

III. INSTALLATION

DIMM Memory Installation Procedures:

Insert the module(s) as shown. Because the number of pins are different on either

side of the breaks, the module will only fit in the orientation as shown. DRAM

SIMM modules have the same pin contact on both sides. SDRAM DIMM modules

have a different pin contact on each side and therefore have a higher pin density.

Lock

P2L97-S 168-Pin DIMM Memory Sockets

88 Pins

60 Pins

20 Pins

(FRONT)

The Dual Inline Memory Module (DIMM) memory modules must be 3.3Volt Un-

buffered Synchronous DRAM (SDRAM) or Extended Data Output (EDO) . You

can identify the type of DIMM module by the illustration below:

168-Pin DIMM Notch Key Definitions (3.3V)

DRAM Key Position

Voltage Key Position

Unbuffered

RFU

Buffered

Reserved

3.3V

5.0V

The notch on the DIMM module will shift between left, center, or right to identify

the type and also to prevent the wrong type to be inserted into the DIMM slot on the

motherboard. You must ask your retailer for the specifications before purchasing.

Four clock signals are supported on this motherboard.

ASUS P2L97-S User’s Manual 19

3. Central Processing Unit (CPU)

The ASUS P2L97-S motherboard provides a Single Edge Contact (SEC) slot for a

Pentium II processor packaged in an SEC cartridge.

Pentium II Processor

WARNING! Be sure that sufficient air circulation is available across the

processor’s passive heatsink. Without sufficient circulation, the processor could

overheat and damage both the processor and the motherboard. You may install

an auxiliary fan, if necessary.

You should check to see that you have the following 9 items.

NOTE: The pictures in the following pages will have the same item numbers next to

them for your reference. The design and color of your items may be slightly different.

Attach Mount Bridges (Items 1,2)

(1)

(2)

Pentium II Retention Mechanism (Item 3)

Lock Holes

Captive Nut

(3)

Pentium II Processor Heatsink (Item 8)

(8)

Heatsink bottom Groove

for the Support Top Bar

Larger Fin should

be on the bottom.

Heatsink Support Base/Top Bar (Items 4-7)

Top Bar (4)

Base (7)

Posts

(5)

(6)

Intel Pentium II Processor in a SEC Cartridge

(233-333MHz 512KB/256KB/0KB L2 Cache)

CPU (Item 9)

III. INSTALLATION

(CPU)

III. INSTALLATION

20 ASUS P2L97-S User’s Manual

III. INSTALLATION

(CPU)

III. INSTALLATION

The ASUS P2L97-S As Shipped

Four screws should be showing next to each corner of the SEC CPU Slot using two

attach mount bridges from the underside of the motherboard. A bottom heatsink

support base must be mounted over the two chipsets located to the side of the slot.

Installing the Pentium II Processor

1. Mount the Pentium II Retention Mechanism: The retention mechanism is

designed to fit into the SEC slot only one way.

TIP: Orient the mechanism’s lock holes toward the motherboard’s chipset (see

motherboard layout for the location of the Intel 440LX AGPset).

Be sure to align the notch in the mechanism with the small rib on one side of the

slot and that the mechanism is properly seated on the board. Then, screw the

captive nuts in place.

WARNING! Do not overtighten the captive nuts. Doing so could damage your

motherboard. Tighten captive nuts to no more than 6±1 inch/pound.

Lock holes

Captive nut

NOTE: Encircled items are screws

from the mount bridges (1 & 2)

SEC CPU slot

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Asus P2L97-S User manual

Brand: Asus

Model: P2L97-S

Category: Motherboards

Type: User manual

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Asus P2L97-S User manual

Asus P2L97-S User manual

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