ASUS PSCH-L User Manual

PSCH-L

User Guide

Motherboard

Checklist

E1410
First edition V1

February 2004

Copyright © 2004 ASUSTeK COMPUTER INC. All Rights Reserved.

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”).

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.

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.

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 MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS
AND SOFTWARE DESCRIBED IN IT.

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.

ii

Contents

Notices ...........................................................................................vi

Safety information ......................................................................... vii

About this guide............................................................................ viii

ASUS contact information ...............................................................x

PSCH-L specifications summary .................................................... xi

Chapter 1: Product introduction

1.1 Welcome! ........................................................................... 1-1

1.2 Package contents............................................................... 1-1

1.3 Special features.................................................................. 1-2

Chapter 2: Hardware information

2.1 Before you proceed ............................................................ 2-1

2.2 Motherboard installation ..................................................... 2-2

2.2.1 Placement direction ............................................... 2-2

2.2.2 Screw holes ........................................................... 2-2

2.2.3 Motherboard layout ................................................ 2-3

2.2.4 Layout Contents..................................................... 2-4

2.3 Central Processing Unit (CPU)........................................... 2-5

2.3.1 Overview ................................................................ 2-5

2.3.2 Installing the CPU .................................................. 2-6

2.3.3 Installing the heatsink and fan ............................... 2-8

2.3.4 Connecting the CPU fan cable ............................ 2-10

Features

2.4 System memory ................................................................2-11

2.4.1 Overview ...............................................................2-11

2.4.2 Memory configurations .........................................2-11

2.4.3 Installing a DIMM ................................................. 2-13

2.4.4 Removing a DIMM ............................................... 2-13

2.5 Expansion slots ................................................................ 2-14

2.5.1 Installing an expansion card ................................ 2-14

2.5.2 Configuring an expansion card ............................ 2-14

2.5.3 PCI slots .............................................................. 2-16

2.6 Jumpers............................................................................ 2-17

2.7 Connectors ....................................................................... 2-19

iii

Safeguards

Contents

Chapter 3: Powering up

3.1 Starting up for the first time ................................................ 3-1

3.2 Powering off the computer ................................................. 3-2

Chapter 4: BIOS setup

4.1 Managing and updating your BIOS .................................... 4-1

4.1.1 Creating a bootable floppy disk ............................. 4-1

4.1.2 Using AFUDOS to update the BIOS ...................... 4-2

4.1.3 Using AFUDOS to copy BIOS from PC ................. 4-3

4.1.4 Recovering the BIOS with CrashFree BIOS 2 ....... 4-4

4.1.5 ASUS Update ........................................................ 4-6

4.2 BIOS Setup program .......................................................... 4-8

4.2.1 BIOS menu screen ................................................ 4-9

4.2.2 Menu bar................................................................ 4-9

4.2.3 Navigation keys ..................................................... 4-9

4.2.4 Menu items .......................................................... 4-10

4.2.5 Sub-menu items................................................... 4-10

4.2.6 Configuration fields .............................................. 4-10

4.2.7 Pop-up window .................................................... 4-10

4.2.8 Scroll bar.............................................................. 4-10

4.2.9 General help ........................................................ 4-10

4.3 Main menu.........................................................................4-11

4.3.1 System Information ...............................................4-11

4.3.2 System Time ........................................................ 4-12

4.3.3 System Date ........................................................ 4-12

4.3.4 Floppy A ............................................................... 4-12

4.3.5 Primary and Secondary IDE Master/Slave,

Third IDE/SATA, Fourth IDE/SATA....................... 4-12

4.3.6 Boot Options ........................................................ 4-14

4.3.7 System Memory ................................................... 4-17

4.4 Advanced menu ............................................................... 4-18

4.4.1 CPU Configuration ............................................... 4-18

4.4.2 Chipset Configuration .......................................... 4-20

4.4.3 Super IO Configuration ........................................ 4-21

4.4.4 IDE Configuration ................................................ 4-22

4.4.5 USB Configuration ............................................... 4-23

4.4.6 ACPI Configuration .............................................. 4-24

4.4.7 PCI PnP Configuration......................................... 4-26

iv

Contents

4.4.8 Hardware Health Configuration ........................... 4-28

4.4.9 Remote Access Configuration ............................. 4-29

4.5 Security menu .................................................................. 4-30

4.5.1 Set Setup/System Password

Clear System Password ...................................... 4-30

4.5.2 Setup Password Lock .......................................... 4-31

4.5.3 System Password Mode ...................................... 4-31

4.5.4 Boot Sector Virus Protection................................ 4-31

4.5.5 Diskette Write....................................................... 4-31

4.5.6 Flash Write........................................................... 4-31

4.5.7 System Load........................................................ 4-32

4.5.8 Setup Prompt....................................................... 4-32

4.6 Power menu ..................................................................... 4-33

4.6.1 Power Failure Recovery ...................................... 4-33

4.6.2 Resume On Ring ................................................. 4-33

4.6.2 Resume On LAN.................................................. 4-33

4.6.3 Resume On RTC Alarm ....................................... 4-33

4.7 Exit menu ......................................................................... 4-34

4.7.1 Save Changes and Exit ....................................... 4-34

4.7.2 Load Previous Values and Exit ............................ 4-34

4.7.3 Load Previous Values .......................................... 4-34

4.7.4 Load Optimal Defaults ......................................... 4-34

Appendix: Reference information

A.1 PSCH-L block diagram ....................................................... A-1

v

Notices

Federal Communications Commission Statement

This device complies with Part 15 of the FCC Rules. 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:

• Reorient 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.

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.

This class B digital apparatus complies with Canadian ICES-003.

vi

Safety information

Electrical safety

• To prevent electrical shock hazard, disconnect the power cable from
the electrical outlet before relocating the system.

• When adding or removing devices to or from the system, ensure that
the power cables for the devices are unplugged before the signal
cables are connected. If possible, disconnect all power cables from the
existing system before you add a device.

• Before connecting or removing signal cables from the motherboard,
ensure that all power cables are unplugged.

• Seek professional assistance before using an adapter or extension
cord. These devices could interrupt the grounding circuit.

• Make sure that your power supply is set to the correct voltage in your
area. If you are not sure about the voltage of the electrical outlet you
are using, contact your local power company.

• If the power supply is broken, do not try to fix it by yourself. Contact a
qualified service technician or your retailer.

Operation safety

• Before installing the motherboard and adding devices on it, carefully
read all the manuals that came with the package.

• Before using the product, make sure all cables are correctly connected
and the power cables are not damaged. If you detect any damage,
contact your dealer immediately.

• To avoid short circuits, keep paper clips, screws, and staples away from
connectors, slots, sockets and circuitry.

• Avoid dust, humidity, and temperature extremes. Do not place the
product in any area where it may become wet.

• Place the product on a stable surface.

• If you encounter technical problems with the product, contact a

qualified service technician or your retailer.

vii

About this guide

This user guide contains the information you need when installing and
configuring the motherboard.

How this guide is organized

This manual contains the following parts:

• Chapter 1: Product introduction

This chapter describes the features of the PSCH-L motherboard. It
includes brief descriptions of the special attributes of the motherboard
and the new technology it supports.

• Chapter 2: Hardware installation

This chapter lists the hardware setup procedures that you have to
perform when installing system components. It includes description of
the switches, jumpers, and connectors on the motherboard.

• Chapter 3: Powering up

This chapter describes the power up sequence and gives information
on the BIOS beep codes.

• Chapter 4: BIOS setup

This chapter tells how to change system settings through the BIOS
Setup menus. Detailed descriptions of the BIOS parameters are also
provided.

• Appendix: Reference information

This appendix includes additional information that you may refer to
when confiiguring the motherboard.

viii

Conventions used in this guide

To make sure that you perform certain tasks properly, take note of the
following symbols used throughout this manual.

WARNING: Information to prevent injury to yourself when trying
to complete a task.

CAUTION: Information to prevent damage to the components
when trying to complete a task.

IMPORTANT: Information that you MUST follow to complete a
task.

NOTE: Tips and additional information to aid in completing a task.

Where to find more information

Refer to the following sources for additional information and for product
and software updates.

1. ASUS Websites

The ASUS websites worldwide provide updated information on ASUS
hardware and software products. Refer to the ASUS contact
information.

2. Optional Documentation

Your product package may include optional documentation, such as
warranty flyers, that may have been added by your dealer. These
documents are not part of the standard package.

ix

PSCH-L specifications summary

CPU

Chipset

Front Side Bus (FSB)
Memory

Expansion slots

Storage

Socket 478 for Intel® Pentium® 4 Processor with
Hyper-Threading Technology
On-die 1MB/512KB L2 cache with full speed

Intel E7210 MCH
Intel 6300ESB ICH

800/533 MHz
Dual-channel memory architecture

4 x 184-pin DDR DIMM sockets for up to 4GB memory
Supports PC3200/2700/2100 unbuffered ECC or non-ECC
DDR DIMMs

2 x 3.3V/64-bit/66MHz PCI
3 x 5V/32-bit/33MHz PCI

Supported by South Bridge (6300ESB ICH)

- 2 x UltraDMA100 connectors

- 2 x Serial ATA connectors
Supported by Promise

- 4 x Serial ATA connectors

- RAID0, RAID1, RAID0+1, Multi-RAID configurations

®

PDC20319 controller

LAN
VGA
Rear panel I/O

Internal I/O

BIOS features

Industry standard

Intel 82547GI Gigabit LAN controller
ATI RAGE-XL PCI-based VGA controller
1 x Parallel port

1 x Serial port
1 x VGA port
1 x PS/2 keyboard port
1 x PS/2 mouse port
2 x USB 2.0 ports
1 x RJ-45 port

1 x USB 2.0 connectors for 2 additional USB ports
CPU/SYSTEM/AUX fan connectors
20-pin/4-pin ATX 12V power connectors
HD LED/Power LED connectors
Chassis intrusion connector
Serial port 2 (COM2) connector

4Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0, SM
BIOS2.3

PCI 2.2, PCI 2.3, USB 2.0

(continued on the next page)

x

Manageability

WfM 2.0. DMI 2.0, WOL/WOR by PME, chassis intrusion

Power requirement
Form Factor
Support CD contents

*Specifications are subject to change without notice.

ATX power supply (with 4-pin 12V plug)
ATX form factor: 12 in x 9.6 in (30.5 cm x 24.5 cm)
Device drivers

Management software
System utilities
ASUS contact information

xi

xii

Chapter 1

This chapter describes the features of the
motherboard. It includes brief explanations
of the special attributes of the motherboard
and the new technology it supports.

Product introduction

Chapter summary

1.1 Welcome! ........................................................ 1-1

1.2 Package contents .......................................... 1-1

1.3 Special features ............................................. 1-2

ASUS PSCH-L motherboard

1.1 Welcome!

Thank you for buying the ASUS® PSCH-L motherboard!

The ASUS

PSCH-L motherboard delivers a host of new features and latest
technologies making it another standout in the long line of ASUS quality
motherboards!

The motherboard incorporates the Intel
processor in 478-pin package coupled with the Intel

®

Pentium® 4 (Northwood/Prescott)

®

E7210/6300ESB

chipset to provide a powerful entry server platform.
Supporting 800MHz FSB, up to 4GB of system memory with PC3200/

2700/2100 DDR SDRAM, onboard high-resolution graphics, Serial ATA
support, and USB 2.0, the PSCH-L is your perfect vehicle to get ahead in
the world of power computing!

Before you start installing the motherboard, and hardware devices on it,
check the items in your package with the list below.

1.2 Package contents

Check your PSCH-L package for the following items.

ASUS PSCH-L motherboard
ASUS support CD
6 x SATA cables
SATA power cable
2 x 80-conductor ribbon cables for UltraDMA/133 IDE drives
40-conductor IDE cable
Ribbon cable for a 3.5-inch floppy drive
I/O shield
Bag of extra jumper caps
User Guide

If any of the above items is damaged or missing, contact your retailer.

ASUS PSCH-L motherboard user guide

1-1

1.3 Special features

Latest processor technology

The motherboard supports the latest Intel® Pentium® 4 processor via a
478-pin surface mount ZIF socket. The processor with 1MB/512KB L2 cache
includes a 800/533 MHz system bus and features the Intel Hyper­Threading Technology and new power design that allow up to 3.4+GHz
core frequencies.

Dual-channel DDR400 memory support

Employing the dual-channel DDR memory architecture, the motherboard
provides a solution that doubles the system memory bandwidth to boost
system performance. The motherboard supports up to 4GB of system
memory using PC3200/2700/2100 ECC or non-ECC DDR DIMMs to
deliver up to 6.4GB/s data transfer rate for the latest 3D graphics,
multimedia, and Internet applications.

Serial ATA technology

The motherboard supports the new Serial ATA technology through the
SATA interfaces and the Intel® 6300ESB ICH and Promise® PDC20319
controllers onboard. The SATA specification allows for thinner, more
flexible cables with lower pin count, reduced voltage requirement, and up
to 150MB/s data transfer rate.

Multi-RAID solution

The motherboard has the Promise® PDC20319 controller to support multi­RAID solution using Serial ATA/150 hard disks. The RAID0 (striping),
RAID1 (mirroring), and RAID 0+1 provide a cost-effective high­performance solution for added system performance and reliability.

Gigabit LAN solution

The Intel® 82547GI Gigabit Ethernet controller allows full-duplex Gigabit
performance on LAN on Motherboard (LOM) applications through the
Communication Streaming Architecture (CSA). Instead of connecting to
the PCI bus, the controller connects to the dedicated CSA bus on the
Memory Controller Hub (MCH) thus reducing the PCI bottlenecks by
freeing the PCI bus for other I/O operations.

1-2

Chapter 1: Product introduction

USB 2.0 technology

The motherboard implements the Universal Serial Bus (USB) 2.0
specification, dramatically increasing the connection speed from the 12
Mbps bandwidth on USB 1.1 to a fast 480 Mbps on USB 2.0. USB 2.0 is
backward compatible with USB 1.1.

ASUS PSCH-L motherboard user guide

1-3

1-4

Chapter 1: Product introduction

Chapter 2

This chapter describes the hardware setup
procedures that you have to perform when
installing system components. It includes
details on the switches, jumpers, and
connectors on the motherboard.

Hardware information

Chapter summary

2.1 Before you proceed ....................................... 2-1

2.2 Motherboard installation ............................... 2-2

2.3 Central Processing Unit (CPU) ..................... 2-5

2.4 System memory ............................................2-11

2.5 Expansion slots ........................................... 2-14

2.6 Jumpers ........................................................ 2-17

2.7 Connectors ................................................... 2-19

ASUS PSCH-L motherboard

2.1 Before you proceed

Take note of the following precautions before you install motherboard
components or change any motherboard settings.

1. Unplug the power cord from the wall socket before touching any
component.

2. Use a grounded wrist strap or touch a safely grounded object or to
a metal object, such as the power supply case, before handling
components to avoid damaging them due to static electricity.

3. Hold components by the edges to avoid touching the ICs on them.

4. Whenever you uninstall any component, place it on a grounded
antistatic pad or in the bag that came with the component.

5. Before you install or remove any component, ensure that the

ATX power supply is switched off or the power cord is
detached from the power supply. Failure to do so may cause

severe damage to the motherboard, peripherals, and/or
components.

When lighted, the green LED (SB_PWR1) indicates that the system is
ON, in sleep mode, or in soft-off mode, a reminder that you should shut
down the system and unplug the power cable before removing or
plugging in any motherboard component.

®

PSCH-L

SB_PWR1

PSCH-L Onboard LED

ON

Standby

Power

OFF

Powered

Off

ASUS PSCH-L motherboard

2-1

2.2 Motherboard installation

Before you install the motherboard, study the configuration of your chassis
to ensure that the motherboard fits into it.

Make sure to unplug the power cord before installing or removing the
motherboard. Failure to do so may cause you physical injury and
damage motherboard components.

2.2.1 Placement direction

When installing the motherboard, make sure that you place it into the
chassis in the correct orientation. The edge with external ports goes to the
rear part of the chassis as indicated in the image below.

2.2.2 Screw holes

Place nine (9) screws into the holes indicated by circles to secure the
motherboard to the chassis.

Do not overtighten the screws! Doing so may damage the
motherboard.

Place this side towards
the rear of the chassis

2-2

Chapter 2: Hardware information

2.2.3 Motherboard layout

24.6cm (9.6in)

PS/2

T: Mouse
B: Keyboard

USB12

COM1

VGA

RJ-45

PARALLEL PORT

Intel
82547
Gigabit

Ethernet

KBPWR1

SYSTEM-FAN

Socket 478

Intel

E7210

MCH

CPU-FAN

PSCH-L

®

ATX12V

DDR DIMM_0A (72 bit, 184-pin module)

DDR DIMM_1A (72 bit, 184-pin module)

I/O

Super

THERMAL_AUX

FLOPPY

SEC_IDE

DDR DIMM_0B (72 bit, 184-pin module)

DDR DIMM_1B (72 bit, 184-pin module)

ATX_POWER

PRI_IDE

30.5cm (12in)

4Mbit
Flash
BIOS

ATI

RAGE XL

VGA

Controller

SLOT_5 (32-bit, 33MHz 5V)

COM2

SLOT_4 (32-bit, 33MHz 5V)

SB_PWR1

SLOT_3 (64-bit, 66MHz 3V)

SLOT_2 (64-bit, 66MHz 3V)

SLOT_1 (32-bit, 33MHz 5V)

PANEL1

AUX-FAN

CHASS1EXTSMB1

BUZZER1

USB34

Intel

6300ESB

ICH

R-SATA2R-SATA4

Promise

PDC20319

RAID

Controller

R-SATA1R-SATA3

SATA_IDE4

SATA_IDE3

CR2032 3V
Lithium Cell

CMOS Power

CLRTC1

RAID_EN

ASUS PSCH-L motherboard

2-3

2.2.4 Layout Contents

Slots Page

1. DDR DIMM 2-11

2. PCI 2-16

Jumpers

1. Keyboard power (3-pin KBPWR) 2-17

2. RAID enable (3-pin RAID_EN) 2-17

3. Clear RTC RAM (3-pin CLRTC) 2-18

Rear panel connectors

1. PS/2 mouse port 2-19

2. Parallel port 2-19

3. PS/2 keyboard port 2-19

4. USB 2.0 ports 1 and 2 2-19

5. Serial port 2-19

6. Video port 2-19

7. RJ-45 port 2-19

Internal connectors

1. Floppy disk drive connector (34-1 pin FLOPPY) 2-20

2. SMBus connector (6-1 pin EXTSMB1) 2-20

3. IDE connectors (40-1 pin PRI_IDE, SEC_IDE) 2-21

4. Serial ATA connectors (7-pin SATA-IDE3, SATA-IDE4) 2-22

5. Serial ATA RAID connectors
(7-pin R-SATA1, R-SATA2, R-SATA3, R-SATA4) 2-22

6. Chassis intrusion connector (4-1 pin CHASS1) 2-23

7. Power supply thermal connector (2-pin THERMAL_AUX) 2-23

8. CPU, System, and Auxiliary fan connectors
(3-pin CPU-FAN, SYSTEM-FAN, AUX-FAN) 2-24

9. Serial port 2 connector (10-2 pin COM2) 2-24

10. ATX power connectors (20-pin ATXPWR, 4-pin ATX12V) 2-25

11. USB header (10-1 pin USB34) 2-26

12. System panel connector (20-pin PANEL) 2-26

- System power LED (3-1 pin PLED)

- Messagge LED (2-pin MLED)

- System warning speaker (4-pin SPEAKER)

- Hard disk activity LED (2-pin HD_LED)

- System management interrupt (2-pin SMI)

- ATX power switch/Soft-off switch (2-pin PWRSW)

- Reset switch (2-pin RESET)

2-4

Chapter 2: Hardware information

2.3 Central Processing Unit (CPU)

2.3.1 Overview

The motherboard comes with a surface mount 478-pin Zero Insertion
Force (ZIF) socket designed for the Intel® Pentium® 4 processor.

Take note of the marked corner
(with gold triangle) on the CPU. This
mark should match a specific corner
on the socket to ensure correct
installation.

Notes on Intel® Hyper-Threading Technology

1. This motherboard supports Intel Pentium 4 CPUs with Hyper­Threading Technology.

2. Hyper-Threading Technology is supported under Windows XP and
Linux 2.4.x (kernel) and later versions only. Under Linux, use the
Hyper-Threading compliler to compile the code. If you are using any
other operating systems, disable the Hyper-Threading Techonology
item in BIOS to ensure system stability and performance.

3. It is recommended that you install WinXP Service Pack 1.

Gold Mark

4. Make sure to enable the Hyper-Threading Technology item in BIOS
before installing a supported operating system.

5. For more information on Hyper-Threading Technology, visit
www.intel.com/info/hyperthreading.

To use the Hyper-Threading Technology on this motherboard:

1. Buy an Intel Pentium 4 CPU that supports Hyper-Threading
Technology. Install the CPU.

2. Power up the system and enter BIOS Setup (see Chapter 4). Under
the Advanced Menu, make sure that the item Hyper-Threading
Technology is set to Enabled. The item appears only if you installed a
CPU that supports Hyper-Threading Techonology.

3. Reboot the computer.

ASUS PSCH-L motherboard

2-5

2.3.2 Installing the CPU

Follow these steps to install a CPU.

1. Locate the 478-pin ZIF socket on the motherboard.

2. Unlock the socket by pressing the
lever sideways, then lift it up to a
90°-100° angle.

Socket Lever

Make sure that the socket lever is lifted up to 90°-100° angle,
otherwise the CPU does not fit in completely.

90 -100

2-6

Chapter 2: Hardware information

3. Position the CPU above the
socket such that its marked
corner matches the base of the
socket lever.

4. Carefully insert the CPU into the
socket until it fits in place.

The CPU fits only in one correct orientation. DO NOT force the CPU
into the socket to prevent bending the pins and damaging the CPU!

5. When the CPU is in place, push
down the socket lever to secure
the CPU. The lever clicks on the
side tab to indicate that it is
locked.

Gold Mark

ASUS PSCH-L motherboard

2-7

2.3.3 Installing the heatsink and fan

The Intel® Pentium® 4 Processor requires a specially designed heatsink
and fan assembly to ensure optimum thermal condition and performance.

When you buy a boxed Intel Pentium 4 Processor, the package
includes the heatsink, fan, and retention mechanism.

In case you buy a CPU separately, make sure that you use only Intel
certified heatsink and fan.

Follow these steps to install the CPU heatsink and fan.

1. Place the heatsink on top of the installed CPU, making sure that the
heatsink fits properly on the retention module base.

The retention module base is already installed on the motherboard
upon purchase.

You do not have to remove the retention module base when installing
the CPU or installing other motherboard components.

CPU Heatsink

Retention Module Base

2-8

Your boxed Intel Pentium 4 Processor package should come with
installation instructions for the CPU, heatsink, and the retention
mechanism. If the instructions in this section do not match the CPU
documentation, follow the latter.

Chapter 2: Hardware information