ASUS P2B-S User Manual 2

0 (0)

R

P2B-L / P2B-S / P2B-LS

Pentium® II Motherboards

USER’S MANUAL

Special Features

ASUS P2B-L (power supply must provide at least 720mA on the +5VSB)

Intel 82558 LAN Chipset

Wake-On-LAN

ASUS P2B-S

Adaptec 7890 SCSI Chipset

Adaptec 3860 SCSI Transceiver

ASUS P2B-LS (power supply must provide at least 720mA on the +5VSB)

Intel 82558 LAN Chipset

Wake-On-LAN

Adaptec 7890 SCSI Chipset

Adaptec 3860 SCSI Transceiver

USER'S NOTICE

No part of this manual, including the products and software described in it, may be reproduced, 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 PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS 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 trademarks 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, SB16,AWE32,AWE64D and SB-LINK 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 revisions 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 FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAYAPPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.

Copyright © 1998 ASUSTeK COMPUTER INC. All Rights Reserved.

Product Name:

ASUS P2B-L/P2B-S/P2B-LS

Manual Revision:

1.06 E265

Release Date:

August 1998

 

 

2

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

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:

info@asus.com.tw

Technical Support

Fax: +886-2-2895-9254

BBS: +886-2-2896-4667

Email: tsd@asus.com.tw

WWW:www.asus.com.tw

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

ASUS COMPUTER INTERNATIONAL

Marketing

Address:

6737 Mowry Avenue, Mowry Business Center, Building 2

 

Newark, CA 94560, USA

Fax:

+1-510-608-4555

Email:

info-usa@asus.com.tw

Technical Support

Fax: +1-510-608-4555

BBS: +1-510-739-3774

Email: tsd-usa@asus.com.tw

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:

info-ger@asus.com.tw

Technical Support

Hotline: 49-2102-499712

BBS: 49-2102-448690

Email: tsd-ger@asus.com.tw

WWW:www.asuscom.de

FTP: ftp.asuscom.de/pub/ASUSCOM

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

3

CONTENTS

I. INTRODUCTION

 

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

7

Item Checklist .....................................................................................

7

II. FEATURES

 

Features ...............................................................................................

8

ASUS P2B-L/P2B-S/P2B-LS Motherboard .......................................

9

III. INSTALLATION

 

ASUS P2B-L/P2B-S/P2B-LS Motherboard Layout .........................

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 ....................................................

35

IV. BIOS SOFTWARE

 

Main Menu ............................................................................

36

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

36

Managing and Updating Your Motherboard’s BIOS ...................

38

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

39

Load Defaults ........................................................................

40

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

40

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

40

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

43

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

43

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

46

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

46

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

49

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

49

4

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

CONTENTS

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

52

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

52

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

54

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

54

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

55

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

56

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

57

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

57

V. Support CD

 

Support CD Main Menu ..............................................................

58

Main Menu Selections ...........................................................

59

Other CD Directories .............................................................

59

VI. DMI Utility

 

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

60

VII. NETWORK INTERFACE

 

Features .......................................................................................

63

Software Driver Support .............................................................

63

LED Connectors ..........................................................................

64

DOS and Windows 3.1 Setup for Novell ..........................................

65

Windows NT Server or Workstation .................................................

66

Windows 95 ......................................................................................

68

Select Duplex Mode (optional) .........................................................

69

Troubleshooting ................................................................................

71

Technical Information .......................................................................

74

Using Wake On LAN ........................................................................

75

Glossary ............................................................................................

76

VIII. ADAPTEC SCSI SELECT

 

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

77

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

77

IX. ADAPTEC EZ-SCSI UTILITY

 

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

79

Troubleshooting Tips ........................................................................

80

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

83

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

84

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

84

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

85

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

5

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 installation. 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 interference 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.

6

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

I. INTRODUCTION

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.Support Software ASUS Smart Motherboard Support CD

VI.

DMI Utility

BIOS supported Desktop Management Interface

VII. Network Interface

Information on the built-in LAN controller (optional)

VIII. Adaptec SCSI Select

Adaptec SCSI Select utility (optional)

IX.

Adaptec EZ-SCSI

Adaptec EZ-SCSI utility (optional)

Item Checklist

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

(1) ASUS Motherboard

(1) Retention mechanism & heatsink support for CPU and heatsink

(2) Attach mount bridges

(1) IDE ribbon cable for master and slave drives

(1) Floppy ribbon cable for (1) 5.25inch floppy and (2) 3.5inch floppies

(1) Spare jumpers

(1) Support drivers and utilities

(1) User’s Manual

68-pin Ultra2 SCSI cable with terminator (optional)

68-pin Fast & Wide SCSI cable (optional)

50-pin Fast SCSI cable (optional)

Network condition connector module (optional)

Manual / Checklist

I. INTRODUCTION

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

7

FEATURES .II

Specifications

II. FEATURES

Features

The ASUS P2B-L/P2B-S/P2B-LS motherboards are carefully designed for the demanding PC user who wants many advanced features processed by the fastest CPU.

Multi-Speed: Supports Intel Pentium® II processors from 233MHz to 450MHz.

IntelAGPset: Features Intel’s 440BXAGPset with I/O subsystems and front-side bus (FSB) platform, which boosts the traditional 66-MHz internal bus speed to 100MHz.

Enhanced ACPI and Anti-Boot Virus BIOS: Features a programmable BIOS (Flash EEPROM), offering enhanced ACPI for Windows 98 compatibility, builtin hardware-based virus protection, and autodetection of most devices for virtually automatic setup.

PC100 Memory Support: Equipped with four DIMM sockets to support Intel PC100-compliant SDRAMs (8, 16, 32, 64, 128, or 256MB) up to 1024MB.

Network Interface: Features the Intel 82558 Ethernet LAN Controller (fully integrated 10BASE-T/100BASE-TX) as an option and a LAN Activity LED connector (optional/reserved) for monitoring network conditions.

Adaptec SCSI Chipset: Features Adaptec AIC-7890 Ultra2 SCSI chipset (optional) that supports a combination of 8-bit and 16-bit Ultra2, Ultra, and singleended or standard SCSI devices and AIC-3860 transceiver chipset (optional) that bridges the compatibility gap between these mixed environments without affecting system performance by taking advantage of the benefits of low-volt- age differential (LVD) technology.

AGP Slot: Supports Accelerated Graphics Port cards for high performance, component level interconnect targeted at 3D graphical display applications.

PCI/ISA Expansion Slots: Provides four 32-bit PCI and two 16-bit ISA slots.

Intelligence: Supports Keyboard Power Up, Fan Status Monitoring and Alarm, Temperature Monitoring and Alert, Voltage Monitoring and Alert, System Resources Alert, and Virus Write Protection through the onboard Hardware Monitor, Intel LANDesk Client Manager (LDCM), and ASUS PC Probe software.

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.

Ultra DMA/33 Bus Master IDE/Floppy: Comes with an onboard PCI Bus Master IDE controller with two connectors that supports four IDE devices in two channels, supports UltraDMA/33, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 2, and supports Enhanced IDE devices. Two floppy drives of either 5.25inch or 3.5inch (1.44MB or 2.88MB) are also supported without 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, 720KB). BIOS supports IDE CD-ROM or SCSI device boot-up.

Concurrent PCI: Allows multiple PCI transfers from PCI master buses to memory to CPU.

8

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

ASUS P2B-S User Manual 2

II.FEATURES

Wake-On-LAN Connector: Supports Wake-On–LAN activity with the optional network interface.

SB-Link™: Features Creative’s SB-Link™, allowing SB16 compatibility, using Intel’s PC-PCI technology, to AWE64D or compatible PCI audio cards.

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

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.)

ASUS P2B-L/P2B-S/P2B-LS Motherboard

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fast-SCSI Connector

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 DIMM Sockets

Ultra-Wide SCSI Connector

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Intel 440BX AGPset

 

Ultra2 SCSI Connector

 

 

 

 

 

 

 

 

 

 

 

 

 

SEC CPU Slot

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T: PS/2 Mouse

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B: PS/2 Keyboard

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T: USB Port 1

 

 

 

 

 

 

 

 

 

B: USB Port 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Bottom)

 

 

 

 

 

 

 

 

 

Parallel (Top)

 

 

 

 

 

 

 

 

 

Serial (Bottom)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Bottom)

 

 

 

 

 

 

 

 

 

Adaptec AIC-7890

 

 

 

 

 

 

 

 

 

Ultra2 & Ultra-Fast/

 

 

 

 

 

 

 

 

 

Wide SCSI Chipset

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(optional)

 

 

 

 

 

 

 

 

 

Accelerated

 

 

 

 

 

 

 

 

 

Graphics Port

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4PCI Slots

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Multi-I/O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hardware

 

 

 

 

 

 

 

 

 

Monitor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 ISA Slots

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Intel

PIIX4E

Programmable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCIset

2Mbit Flash ROM

Motherboard Parts

II. FEATURES

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

9

INSTALLATION .III

Layout Board

III. INSTALLATION

ASUS P2B-L/P2B-S/P2B-LS Motherboard Layout

 

Power Supply Fan

CPU_FAN

 

 

 

 

 

 

 

 

 

PS/2

Mouse (top port)

TRCPU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Keyboard (bottom port)

 

 

 

 

 

 

 

 

 

 

 

 

 

USB 1 (top port)

 

 

 

 

 

 

 

 

 

 

 

 

USB

USB 2 (bottom port)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KBPWR

CPUContactEdgeSingleSlot

module)pin168bit,(64/720Socket

module)pin168bit,(64/721Socket

module)pin168bit,(64/722Socket

module)pin168bit,(64/723Socket

 

 

 

 

 

 

 

COM 1

ConnectorPowerATX

FS2

FS1

68

34

68

34

 

 

 

 

 

 

 

 

BUS Freq.

 

 

 

Port

 

Intel

 

 

 

 

 

 

FS0

 

 

 

 

Parallel

 

 

 

 

 

 

 

 

 

 

 

 

 

440BX

 

 

 

 

 

 

 

 

 

 

 

 

 

AGPset

 

 

 

 

 

 

 

 

 

 

 

COM 2

 

 

 

 

 

 

 

 

 

 

 

 

 

RJ-45

 

 

DIMM

DIMM

DIMM

DIMM

FLOPPY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LAN Activity

 

 

 

 

 

 

 

 

 

 

 

 

 

LED Connector

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

35

1

35

1

1

 

Intel 82558

 

 

 

 

 

 

 

SCSI

SCSI

SCSI

 

Ethernet LAN

 

 

 

 

 

 

 

Ultra2Pin-68

WidePin-68

-50Pin

 

Controller

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Accelerated Graphics Port

 

 

 

 

Adaptec

 

 

 

 

 

 

 

 

 

SCSI_EN

 

SCSI

 

 

 

 

 

 

 

 

 

 

 

 

 

Chipset

 

 

 

Adaptec

 

 

LAN_EN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AIC-3860

 

 

 

 

 

 

 

 

 

 

 

 

Chipset

PCI Slot 4

SBLINK

 

SECONDARY IDE

 

R

 

 

 

 

 

PCI Slot 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Multi-I/O

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRIMARY IDE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Intel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLRTC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BF3 BF2 BF1 BF0

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCI Slot 2

 

PIIX4E

 

 

Freq. Ratio

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chipset

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BIOS Power

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ASUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(CR2032 3V

 

 

 

 

 

 

 

 

 

 

 

 

 

PCI Slot 1

 

 

 

 

 

 

 

A97127F

 

 

 

 

 

 

 

Lithium Cell)

 

 

 

 

 

 

 

 

Hardware

 

 

 

 

 

 

 

Chipset

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SCSILED

Monitor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHASSIS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ISA Slot 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PANEL

 

Combine

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IDELED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IR

 

 

 

 

 

 

 

 

WOL_CON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXTBATT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2Mbit Flash EEPROM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Programmable BIOS)

 

 

CHA_FAN

Speaker

 

 

 

 

 

 

 

 

 

 

 

 

ISA Slot 2

NOTE: Greyed components are optional at the time of purchase.

10

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

III. INSTALLATION

Jumpers

1)

CLRTC

p. 13 Clear Real Time Clock (RTC) RAM

2)

KBPWR

p. 13 Keyboard Power Up (Enable/Disable)

3)

LAN_EN

p. 14 Onboard LAN Setting (Enable/Disable)

4)

SCSI_EN

p. 14

Onboard SCSI Setting (Enable/Disable)

5)

COMBINE

p. 14 IDE+SCSI LED Activity Light (Separated/Combined)

6)

FS0, FS1, FS2

p. 15

CPU Bus Frequency

7)

BF0, BF1, BF2, BF3

p. 15

CPU Core:Bus Frequency Multiple

Expansion Slots/Sockets

1)

DIMM Sockets

p. 18 DIMM Memory Support

2)

SEC CPU Slot

p. 19

Single Edge Contact CPU Support

3)

SLOT1, SLOT2

p. 24

16-bit ISA Bus Expansion Slots*

4)

PCI1, PCI2, PCI3, PCI4

p. 25

32-bit PCI Bus Expansion Slots

5)

AGP

p. 25

Accelerated Graphics Port

Hardware Monitor

1) TRCPU p. 22 CPU heat Sensor Connector

Connectors

1)

PS2KBMS

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

2)

PS2KBMS

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)

RJ-45

p. 27

RJ-45 Connector (8-pin female)

6)

USB

p. 28

Universal Serial BUS Ports 1 & 2 (two 4 pin female)

7)

A

p. 28 LAN Condition Connector (6 pins)

8)

FLOPPY

p. 28

Floppy Drive Connector (34-1 pins)

9)

Primary/Secondary IDE

p. 29 Primary/Secondary IDE Connector (40 pins)

10) IDELED/SCSILED

p. 29

IDE/SCSI LED Activity Light (two 2 pins)

11)

SCSI-50/SCSI-68/ULTRA2-68

p. 30

Ultra-Fast (50)/Wide (68)/Ultra2 (68) SCSI Connectors

12)

IR

p. 31

Infrared Port Module Connector (5 pins)

13)

SBLINK

p. 31

SB-LINK™ Connector (6-1 pins)

14) TB LED (PANEL)

p. 32

Message LED Lead (2 pins)

15)

SMI (PANEL)

p. 32 SMI Suspend Switch Lead (2 pins)

16) PWR (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)

21)

CHASSIS

p. 33

Chassis Open Alarm Lead (4-1 pins)

22)

CHA_/CPU_/PWR_FAN

p. 33 Chassis/CPU/Power Supply Fan Connectors (3 pins)

23)

ATXPWR

p. 34

ATX Motherboard Power Connector (20 pins)

*The onboard hardware monitor uses the address 290H-297H so legacy ISA cards must not use this address, otherwise conflicts will occur.

INSTALLATION

Board Layout

III.

 

 

 

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

11

INSTALLATION .III

Jumpers

III. INSTALLATION

Installation Steps

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

1.Set Jumpers on the Motherboard

2.Install System 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 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. A “1” is written besides pin 1 on jumpers with three pins. The jumpers will also be shown graphically 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 diagrammed.

WARNING! Computer motherboards, baseboards and components, such as SCSI cards, contain very delicate Integrated Circuit (IC) chips. To protect them against damage from static electricity, 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.

12

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

III. INSTALLATION

Jumper Settings

1.Clear 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

CLRTC

P2B-L/S/LS Real Time Clock RAM (CLRTC)

2.Keyboard Power Up (KBPWR)

This allows you to disable or enable the keyboard power up function. Set to Enable if you want to use your keyboard (by pressing <Spacebar>) to power up your computer. This feature requires an ATX power supply that can supply at least 300mA on the +5VSB lead and the new ACPI BIOS support. The default is set to Disable because not all computers have the appropriate ATX power supply. Your computer will not function if you set this to Enable and if you do not have the right ATX power supply.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KBPWR

KBPWR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

1

2

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Disable Enable (Default)

P2B-L/S/LS Keyboard Power (Wake) Up

INSTALLATION

Jumpers

III.

 

 

 

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

13

INSTALLATION .III

Jumpers

III.INSTALLATION

3.Onboard LAN Setting (LAN_EN)

The onboard Intel 10/100 Fast Ethernet may be enabled or disabled using this jumper.

LAN_EN

LAN_EN

1

1

2

2

3

3

Enable

Disable

(Default)

 

P2B-L/S/LS Onboard LAN Setting

4.Onboard SCSI Setting (SCSI_EN)

The onboard Adaptec Fast/Wide/Ultra2 SCSI may be enabled or disabled using this jumper.

SCSI_EN SCSI_EN

1

1

2

2

3

3

Enable

Disable

(Default)

 

P2B-L/S/LS Onboard SCSI Setting

5.IDE/SCSI Device Activity LED Selection (COMBINE)

The IDE and SCSI Activity LEDs normally has separate connections. If you have both SCSI and IDE devices connected to this motherboard but only have one LED on your system cabinet, place a jumper on COMBINE in order to combine the IDE and SCSI activity into the IDELED.

COMBINE (Default)

IDELED and SCSILED activity are separate

COMBINE

IDELED includes SCSILED activity

P2B-L/S/LS IDE/SCSI Device Activity LED Selection

14

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

III.INSTALLATION

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

This option tells the clock generator what frequency to send to the CPU, DRAM, and chipset. 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).

7.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.

1 2

3

1 2

3

1 2

3

1 2

3

1 2

3

1 2

3

1 2

3

1 2

3

1 2

3

BF3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BF2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BF1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BF0

 

 

 

 

 

 

2.0x (2/1)

2.5x (5/2)

3.0x (3/1)

3.5x (7/2)

4.0x (4/1)

4.5x (9/2)

5.0x (5/1) 5.5x (11/2) 6.0x (6/1)

CPU Core:Bus Frequency Multiple

1 2

3

1 2

3

1 2

3

1 2

3

1 2

3

1 2

3

1 2

3

FS2

FS1

FS0

50MHz 66.8MHz 75MHz 83.3MHz 100MHz 103MHz 112MHz

CPU Bus Frequency

P2B-L/S/LS CPU Settings

WARNING! Frequencies above 100Mhz exceed the specifications for the onboard Intel Chipset and are not guaranteed to be stable.

Intel Pentium II Processor in an SEC Cartridge (233-450MHz)

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

CPU Model

Freq.

 

 

 

 

 

(BUS Freq.)

 

 

 

 

 

Ratio

BUS F.

FS2

FS1

FS0

Intel Pentium II

450MHz

4.5x

100MHz

[1-2] [1-2] [1-2]

Intel Pentium II

400MHz

4.0x

100MHz

[1-2] [1-2] [1-2]

Intel Pentium II

350MHz

3.5x

100MHz

[1-2] [1-2] [1-2]

Intel Pentium II

333MHz

5.0x

66MHz

[2-3] [1-2] [1-2]

Intel Pentium II

300MHz

4.5x

66MHz

[2-3] [1-2] [1-2]

Intel Pentium II

266MHz

4.0x

66MHz

[2-3] [1-2] [1-2]

Intel Pentium II

233MHz

3.5x

66MHz

[2-3]

[1-2]

[1-2]

(Freq. Ratio)

BF3 BF2 BF1 BF0

[2-3] [1-2] [2-3] [1-2] [2-3] [1-2] [2-3] [2-3] [2-3] [2-3] [1-2] [1-2] [2-3] [1-2] [1-2] [2-3] [2-3] [1-2] [2-3] [1-2] [2-3] [1-2] [2-3] [2-3] [2-3] [2-3] [1-2] [1-2]

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 P2B-L/P2B-S/P2B-LS User’s Manual

15

(This page was intentionally left blank.)

16

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

III.INSTALLATION

2.System Memory (DIMM)

This motherboard uses only Dual Inline Memory Modules (DIMMs). Sockets are available for 3.3Volt (power level) unbuffered Synchronous Dynamic Random Access Memory (SDRAM). One side (with memory chips) of the DIMM 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 ECC chip) and make the proper settings through “Chipset Features Setup” in IV. BIOS SOFTWARE.

Memory speed setup is recommended through SDRAM Configuration under “Chipset Features Setup”.

IMPORTANT: SDRAMs used must be compatible with the current Intel PC100 SDRAM specification.

Install memory in any combination as follows:

DIMM Location

168-pin DIMM

 

Total Memory

Socket 1 (Rows 0&1)

SDRAM 8, 16, 32, 64, 128, 256MB

x1

 

 

 

 

 

Socket 2 (Rows 2&3)

SDRAM 8, 16, 32, 64, 128, 256MB

x1

 

 

 

 

 

Socket 3 (Rows 4&5)

SDRAM 8, 16, 32, 64, 128, 256MB

x1

 

 

 

 

 

Socket 4 (Rows 6&7)

SDRAM 8, 16, 32, 64, 128, 256MB

x1

 

 

 

 

 

 

Total System Memory (Max 1024MB)

=

 

 

 

 

 

ASUS Memory Module Example:

SDRAM DIMM (8 chips, Non-ECC)

General DIMM Notes

Use only PC100-compliant DIMMs. This motherboard operates at 100MHz, thus most systems will not even boot if non-compliant modules are used because of the strict timing issues involved under this speed.

Two possible memory chips are supported: SDRAM with and without ECC.

SDRAM chips are generally thinner with higher pin density than traditional EDO (Extended Data Output) chips.

BIOS shows SDRAM memory on bootup screen.

8 chips/side modules do not support ECC, only 9 chips/side modules support ECC.

Single-sided DIMMs come in 16, 32, 64,128MB and double-sided DIMMs come in 32, 64, 128, 256MB sizes.

System Memory

III. INSTALLATION

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

17

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 contacts on both sides. SDRAM DIMMs have different pin contacts on each side and therefore have a higher pin density.

INSTALLATION .III

Memory System

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20 Pins 60 Pins

 

88 Pins

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Lock

(FRONT)

P2B-L/S/LS 168-Pin DIMM Memory Sockets

The DIMMs must be 3.3Volt unbuffered SDRAMs. To determine the DIMM type, check the notches on the DIMMs (see figure below).

168-Pin DIMM Notch Key Definitions (3.3V)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DRAM Key Position

Voltage Key Position

RFU

Unbuffered

5.0V

Reserved

Buffered

 

3.3V

The notches on the DIMM will shift between left, center, or right to identify the type and also to prevent the wrong type from being inserted into the DIMM slot on the motherboard. You must tell your retailer the correct DIMM type before purchasing. This motherboard supports four clock signals.

18

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

III.INSTALLATION

3.Central Processing Unit (CPU)

This 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.

Lock Holes

Captive Nut

(1)

(3)

(2)

Attach Mount Bridges (Items 1,2) Pentium II Retention Mechanism (Item 3)

(8)

Top Bar (4)

(5)

Pin

Posts

(6)

Base (7)

Larger Fin should

be on the bottom. Heatsink bottom Groove for the Support Top Bar

Heatsink Support Base/Top Bar (Items 4-7) Pentium II Processor Heatsink (Item 8)

CPU (Item 9)

INSTALLATION

CPU

III.

 

 

 

ASUS P2B-L/P2B-S/P2B-LS User’s Manual

19

III. INSTALLATION

Attach Mount Bridges

Four screws should be showing next to each corner of the SEC CPU Slot with the two attach mount bridges installed.

SEC CPU slot

NOTE: Encircled items are the screws from the mount bridges (1 & 2)

Attach Mount Bridges (underside)

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 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

Captive nut

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2.Mount the Heatsink: Place the SEC cartridge face down on a flat surface and lay the heat sink flush on the back (metal side) of the SEC cartridge. Check the orientation of the heatsink against the pictures. The thicker fin must be orientated toward the bottom. The top clamp is wider than the bottom clamp so only this orientation will fit. With a screw driver, push the clamps one at a time into the SEC cartridge. Be sure that the heatsink is firmly pressed against the SEC cartridge. When correctly installed, no light must be showing through between the thermal pad of the heatsink and the SEC cartridge.

WARNING! If the heatsink is not mounted tightly against the SEC cartridge, the CPU will overheat. You may install an auxiliary fan to provide adequate circulation across the processor’s passive heatsink.

(8)

(9)

Push each end of the clamps until they lock

Push Clamp

 

 

(8)

 

 

 

 

 

Lock

 

 

Lock

 

 

 

 

 

 

 

 

 

 

 

 

 

(9)

Push Clamp

The thermal pad & SEC cartridge should not have a gap!

SEC Cartridge with Heatsink (Side View)

SEC Cartridge with Heatsink (Top View)

3.Insert the SEC Cartridge: Push the SEC cartridge’s two locks inward (the preceding picture shows the locks in the outward position and inward in the picture below). With the heatsink facing the motherboard’s chipsets, press the cartridge gently but firmly until it is full inserted.

INSTALLATION

CPU

III.

 

 

 

Push lock inward

(3)

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INSTALLATION .III CPU

III.INSTALLATION

4.Secure the SEC Cartridge: Secure the SEC cartridge in place by pushing the SEC cartridge locks outward so that the lock shows through the retention mechanism’s lock holes.

(3)

(3)

5.Secure the Heatsink: Install the heatsink support base into the motherboard. This is not, however, necessary if you use a heatsink with fan (see next page). The support base is necessary to secure the heatsink (without fan). Secure the heatsink by sliding the heatsink support top bar into the bottom groove of the heatsink until it locks into the heatsink support base posts.

(9)

(8)

Heatsink support top bar (4)

Heatsink support

Heatsink support

base post

base (7)

6.Connect the Heat Sensor Cable to TRCPU (optional): If you purchased the specially designed fan and thermal monitor heatsink, you can connect the heat sensor cable to the motherboard’s CPU heat sensor connector (TRCPU).

TRCPU

P2B-L/S/LS CPU Thermal Sensor

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The heatsinks shown in this manual are for reference purposes only. The recommended heatsinks for the Pentium II processor are those with three-pin fans that can be connected to the CPU fan connector on motherboard. These heatsinks have the added benefits of proper heat dissipation and with the hardware monitor, the ability to monitor the fan’s RPM and use the alert function through the included LANDesk Client Manager (LDCM) software.

AAVID Heatsink

The procedures for installing the AAVID heatsink with fan is similar as that for the heatsink without a fan. You will not, however, be able to use the heatsink support top bar because of the fan. The heatsink support top bar will, however, still be included in the package, in case you use a heatsink without a fan.

Elan Vital Heatsink

The procedures for installing the Elan Vital heatsink with fan is also similar to the steps for installing the heatsink without a fan. The Elan Vital heatsink, however, comes with a lever to clamp the heatsink into the SEC cartridge. Mount the heatsink in the orientation as shown then flip the lever from “Unlock” to “Lock.” You will not be able to also use the heatsink support top bar because of the fan. The heatsink support top bar will, however, still be included in the package, in case you use a heatsink without a fan.

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INSTALLATION .III

Cards Expansion

III.INSTALLATION

4.Expansion Cards

WARNING! Unplug your power supply when adding or removing expansion cards or other system components. Failure to do so may cause severe damage to both your motherboard and expansion cards.

Expansion Card Installation Procedure

1.Read the documentation for your expansion card and make any necessary hardware or software settings for your expansion card, such as jumpers.

2.Remove your computer system’s cover and the bracket plate on the slot you intend to use. Keep the bracket for possible future use.

3.Carefully align the card’s connectors and press firmly.

4.Secure the card on the slot with the screw you removed above.

5.Replace the computer system’s cover.

6.Set up the BIOS if necessary

(such as IRQ xx Used By ISA: Yes in PNP AND PCI SETUP)

7.Install the necessary software drivers for your expansion card.

Assigning IRQs for Expansion Cards

Some expansion cards need to use an IRQ to operate. Generally, an IRQ must be exclusively assigned to one use. In a standard design, there are 16 IRQs available but most of them are already in use, leaving 6 IRQs free for expansion cards. If your motherboard has audio onboard, an extra 3 IRQs will be used, leaving 3 IRQs free.

Both ISA and PCI expansion cards may require to use IRQs. System IRQs are available to cards installed in the ISA expansion bus first, then any remaining IRQs are available to PCI cards. Currently, there are two types of ISA cards. The original ISA expansion card design, now referred to as legacy ISA cards, requires that you configure the card’s jumpers manually and then install it in any available slot on the ISA bus. You may use the Microsoft Diagnostics (MSD.EXE) utility located in the Windows directory to see a map of your used and free IRQs. If you use Windows 95, the Resources tab under Device Manager displays the resource settings being used by a particular device (to gain access, double-click the System icon under the Control Panel program). Ensure that no two devices share the same IRQs or your computer will experience problems when those two devices are in use at the same time.

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To simplify this process, this motherboard complies with the Plug and Play (PnP) specification, which was developed to allow automatic system configuration whenever a PnP-compliant card is added to the system. For PnP cards, IRQs are assigned automatically from those available.

If the system has both legacy and PnP ISA cards installed, IRQs are assigned to PnP cards from those not used by legacy cards. The PCI and PNP configuration section of the BIOS setup utility can be used to assign which IRQs are being used by legacy cards. For older legacy cards that do not work with the BIOS, you may contact your vendor for an ISA Configuration Utility.

An IRQ number is automatically assigned to PCI expansion cards after those used by legacy and PnP ISA cards. In the PCI bus design, the BIOS automatically assigns an IRQ to a PCI slot that contains a card requiring an IRQ. To install a PCI card, you need to set the INT (interrupt) assignment. Since all the PCI slots on this motherboard use an INTA #, set the jumpers on your PCI cards to INT A.

Assigning DMA Channels for ISA Cards

Some ISA cards, both legacy and PnP, may also need to use a DMA (Direct Memory Access) channel. DMA assignments for this motherboard are handled the same way as the IRQ assignment process described earlier. You can select a DMA channel in the PCI and PnP configuration section of the BIOS Setup utility.

IMPORTANT: To avoid conflicts, reserve the necessary IRQs and DMAs for legacy ISA cards (under PNP AND PCI SETUP of the BIOS SOFTWARE, choose Yes in IRQ xx Used By ISA and DMA x Used By ISA for those IRQs and DMAs you want to reserve).

ISA Cards and Hardware Monitor

The onboard hardware monitor uses the address 290H-297H so legacy ISA cards must not use this address or else conflicts will occur.

Accelerated Graphics Port

This motherboard provides an accelerated graphics port (AGP) slot to support a new generation of graphics cards with ultra-high memory bandwidth, such as the ASUS AGP-V2740 3D Multimedia Accelerator.

INSTALLATION

AGP

III.

 

 

 

P2B-L/S/LS Accelerated Graphics Port (AGP)

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INSTALLATION .III

Connectors

III.INSTALLATION

5.External Connectors

WARNING! Some pins are used for connectors or power sources. Placing jumper caps over these will cause damage to your motherboard.

IMPORTANT: Ribbon cables should always be connected with the red stripe on the Pin 1 side of the connector. The four corners of the connectors are labeled on the motherboard. Pin 1 is the side closest to the power connector on hard drives and floppy drives. IDE ribbon cable must be less than 46cm(18in), with the second drive connector no more than 15cm (6in) from the first connector.

1.PS/2 Keyboard Connector (6-pin Female)

This connection is for a standard keyboard using a PS/2 plug (mini DIN). This connector will not allow standard AT size (large DIN) keyboard plugs. You may use a DIN to mini DIN adapter on standard AT keyboards.

P2B-L/S/LS PS/2 Keyboard (6-pin Female)

2.PS/2 Mouse Connector (6-pin Female)

The system will direct IRQ12 to the PS/2 mouse if one is detected. If not detected, expansion cards can use IRQ12. See “PS/2 Mouse Function Control” in BIOS Features Setup of the BIOS SOFTWARE.

P2B-L/S/LS PS/2 Mouse (6-pin Female)

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3.Parallel Printer Connector (25-pin Female)

You can enable the parallel port and choose the IRQ through “Onboard Parallel Port” in Chipset Features Setup of the BIOS SOFTWARE. NOTE: Serial printers must be connected to the serial port.

P2B-L/S/LS Parallel Port (25-pin Female)

4.Serial Port COM1 and COM2 Connectors (Two 9-pin Male)

The two serial ports can be used for pointing devices or other serial devices. See “Onboard Serial Port...” in Chipset Features Setup of the BIOS SOFTWARE.

COM 1

COM 2

P2B-L/S/LS Serial Ports (9-pin Male)

 

5.RJ-45 Connector (8-pin Female)

This connector can be used to connect the onboard 32-bit 10/100 Mbps Ethernet LAN Controller (optional) to a host or a hub.

P2B-L/S/LS RJ-45 Port

INSTALLATION

Connectors

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