ASUS P5S-MX SE User Manual

P5S-MX SE

Motherboard

E3214

First Edition

April 2007

Copyright © 2006 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 byASUS; 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
P5S-MX SE specifications summary..........................................................	x

Chapter 1: Product introduction

1.1	Welcome!.......................................................................................		1-2
1.2	Package contents.........................................................................		1-2
1.3	Special features............................................................................		1-2
	1.3.1	Product highlights ............................................................	1-2
	1.3.2	ASUS Special features ....................................................	1-4
1.4	Before you proceed......................................................................		1-5
1.5	Motherboard overview.................................................................		1-6
	1.5.1	Placement direction .........................................................	1-6
	1.5.2	Screw holes .....................................................................	1-6
	1.5.3	Motherboard layout ..........................................................	1-7
	1.5.4	Layout contents . ..............................................................	1-8
1.6	Central Processing Unit (CPU)....................................................		1-9
	1.6.1	Installing the CPU ..........................................................	1-10
	1.6.2	Installing the CPU heatsink and fan ..............................	1-12
	1.6.3	Uninstalling the CPU heatsink and fan ..........................	1-14
1.7	System memory..........................................................................		1-16
	1.7.1	Overview ........................................................................	1-16
	1.7.2	Memory configurations . .................................................	1-16
	1.7.3	Installing a DIMM ...........................................................	1-20
	1.7.4	Removing a DIMM .........................................................	1-20
1.8	Expansion slots..........................................................................		1-21
	1.8.1	Installing an expansion card ..........................................	1-21
	1.8.2	Configuring an expansion card ......................................	1-21
	1.8.3	Interrupt assignments ....................................................	1-22
	1.8.4	PCI slots . .......................................................................	1-23
	1.8.5	PCI Express x1 slot . ......................................................	1-23
	1.8.6	PCI Express x16 slot . ....................................................	1-23
1.9	Jumpers	.......................................................................................	1-24
1.10	Connectors..................................................................................		1-26
	1.10.1 ..................................................	Rear panel connectors	1-26
	1.10.2 ........................................................	Internal connectors	1-28

iii

Contents

Chapter 2: BIOS setup

2.1	Managing and updating your BIOS.............................................		2-2
	2.1.1	Creating a bootable floppy disk.......................................	2-2
	2.1.2	ASUS EZ Flash utility......................................................	2-3
	2.1.3	AFUDOS utility................................................................	2-4
	2.1.4	ASUS CrashFree BIOS 2 utility.......................................	2-6
	2.1.5	ASUS Update utility.........................................................	2-8
2.2	BIOS setup program...................................................................		2-11
	2.2.1	BIOS menu screen........................................................	2-12
	2.2.2	Menu bar.......................................................................	2-12
	2.2.3	Navigation keys.............................................................	2-12
	2.2.4	Menu items....................................................................	2-13
	2.2.5	Sub-menu items............................................................	2-13
	2.2.6	Configuration fields........................................................	2-13
	2.2.7	Pop-up window..............................................................	2-13
	2.2.8	Scroll bar.......................................................................	2-13
	2.2.9	General help..................................................................	2-13
2.3	Main menu...................................................................................		2-14
	2.3.1	System Time..................................................................	2-14
	2.3.2	System Date..................................................................	2-14
	2.3.3	Legacy Diskette A .........................................................	2-14
	2.3.4	Primary and SATAIDE Master/Slave...................................	2-15
	2.3.5	IDE Configuration..........................................................	2-16
	2.3.6	System Information........................................................	2-17
2.4	Advanced menu..........................................................................		2-18
	2.4.1	USB Configuration.........................................................	2-18
	2.4.2	CPU Configuration.........................................................	2-19
	2.4.3	Chipset .........................................................................	2-21
	2.4.4	Onboard Devices Configuration....................................	2-23
	2.4.5	PCI PnP.........................................................................	2-24
2.5	Power menu................................................................................		2-25
	2.5.1	Suspend Mode..............................................................	2-25
	2.5.2	Repost Video on S3 Resume........................................	2-25
	2.5.3	ACPI 2.0 Support...........................................................	2-25
	2.5.4	ACPI APIC Support.......................................................	2-25

iv

Contents

	2.5.5	APM Configuration .......................................................	2-26
	2.5.6	Hardware Monitor..........................................................	2-27
2.6	Boot menu...................................................................................		2-28
	2.6.1	Boot Device Priority.......................................................	2-28
	2.6.2	Boot Settings Configuration...........................................	2-29
	2.6.3	Security..........................................................................	2-30
2.7	Exit menu.....................................................................................		2-32

Chapter 3: Software support

3.1	Installing an operating system....................................................		3-2
3.2	Support CD information...............................................................		3-2
	3.2.1	Running the support CD..................................................	3-2
	3.2.2	Drivers menu...................................................................	3-3
	3.2.3	Utilities menu...................................................................	3-4
	3.2.4	Make Disk menu..............................................................	3-5
	3.2.5	Manual menu...................................................................	3-5
	3.2.6	ASUS Contact information...............................................	3-6

Appendix: CPU features

A.1	Intel® EM64T..................................................................................		A-2
A.2	Enhanced Intel SpeedStep® Technology (EIST).........................		A-2
	A.2.1	System requirements.......................................................	A-2
	A.2.2	Using the EIST.................................................................	A-3
A.3	Intel® Hyper-Threading Technology............................................		A-4
	Using the Hyper-Threading Technology ........................................		A-4

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 adpater 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 motherboard and the new technology it supports. It also lists the hardware setup procedures that you have to perform when installing system components. It includes description of the jumpers and connectors on the motherboard.

•Chapter 2: BIOS setup

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

•Chapter 3: Software support

This chapter describes the contents of the support CD that comes with the motherboard package.

Where to find more information

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

1.ASUS websites

The ASUS website provides 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.

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.

DANGER/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: Instructions that you MUST follow to complete a task.

NOTE: Tips and additional information to help you complete a task.

Typography

Bold text	Indicates a menu or an item to select.
Italics	Used to emphasize a word or a phrase.
<Key>	Keys enclosed in the less-than and greater-than sign
	means that you must press the enclosed key.

Example: <Enter> means that you must press the Enter or Return key.

<Key1>+<Key2>+<Key3> If you must press two or more keys simultaneously, the key names are linked with a plus sign (+).

Example: <Ctrl>+<Alt>+<D>

Command Means that you must type the command exactly as shown, then supply the required item or value enclosed in brackets.

Example: At the DOS prompt, type the command line:

afudos /i[filename]

afudos /iP5SMXWAP.ROM

ix

P5S-MX SE specifications summary

CPU

Chipset

System Bus

Memory

Expansion Slots

VGA

Storage

LAN

Audio

USB

ASUS Features

LGA775 socket for Intel® Core™2 Duo/ Pentium® D / Pentium® 4 / Celeron® Processors

Support Intel® 65nm and Dual Core CPU Compatible with Intel® 05B/05A/04B/04A processors

Intel® EIST EM64T/Hyper-Threading Technology ready (Refer to www.asus.com for Intel CPU support list)

Northbridge: SIS 671FX

Southbridge: SIS 968

1066 / 800 / 533 MHz

2 x 240-pin DIMM sockets supports unbuffered non-ECC

4GB667/533/400MHzDDR2 memory modules

1 x PCI Express x 16 slot

1 x PCI Express x 1 slot

2 x PCI slots

SIS Chrome9 HC Integrated Graphics, up to 256MB shared memory

Southbridge SIS968 supports:

- 1 x UltraDMA 133/100/66/33 hard disk drives - 2 x SATA 3Gb/s with RAID 0, 1 function

SIS 968 built-in Gigabit MAC with external Attansic PHY

Realtek® ALC 662 6-channel High DefinitionAudio

CODEC

Support Jack-Sensing interface

8 x USB2.0 ports

ASUS CrashFree BIOS 2

ASUS EZ Flash

ASUS Q-Fan

ASUS MyLogo

(continued on the next page)

P5S-MX SE specifications summary

Rear panel

Internal connectors

Support CD contents

Other Accessories

Form factor

1 x PS/2 keyboard port

1 x PS/2 mouse port

1 x Parallel port

1 x VGA port

1 x COM port

1 x LAN (RJ-45) port

4 x USB 2.0/1.1 ports

6-channel audio I/O port

2 x USB 2.0 connectors support additional 4 USB 2.0 ports 1 x CPU / 1 x Chassis fan connectors

1 x S/PDIF Out connector

1 x Chassis intrusion connector

1 x Front panel audio connector

1 x CD audio in connector

1 x 24-pin ATX power connector

1 x 4-pin ATX 12 V power connector System panel connector

Drivers

ASUS PC Probe 2

ASUS LiveUpdate Utility

Anti-virus software (OEM version)

1 x SATA cables

1 x SATA power cable

1 x UltraDMA 133/100/66 cable

1 x FDD cable

1 x I/O Shield User manual

Micro-ATX form factor: 9.6’ in x 7.2’ in (24.4 cm x 18.3 cm)

*Specifications are subject to change without notice.

xi

xii

This chapter describes the motherboard features and the new technologies

it supports.

Product1 introduction

1.1Welcome!

ThankyouforbuyinganASUS® P5S-MX SE motherboard!

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

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

1.2Package contents

Check your motherboard package for the following items.

Motherboard	ASUS P5S-MX SE
Cables	1 x Ultra DMA 133/100/66 cable
	1 x SATA cable
	1 x SATA power cable
	1 x Floppy disk drive cable
Accessories	I/O shield
Application CD	ASUS motherboard support CD
Documentation	User guide

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

1.3Special features

1.3.1Product highlights

Intel® Core™2 Processor Ready

This motherboard supports the latest Intel® Core™2 processor in the LGA775 package. With the new Intel® Core™ microarchitecture technology and 1066 / 800 MHz FSB, Intel® Core™2 processor is one of the most powerful and energy efficient CPU in the world.

Intel LGA775 CPU

This motherboard supports the latest Pentium 4 CPU from Intel in LGA775 package. With 1066/ 800/ 533MHz FSB, Hyper-Threading Technology and corespeeds up to 3.8GHz and beyond.

1-	Chapter 1: Product introduction

Intel® 65nm Dual-Core CPU support

This motherboard supports Intel® Pentium® D/Pentium® 4/Celeron® dualcore processors built on the 65-nanometer (nm) process technology with copper interconnect. Dual-core processors contain two physical CPU cores with dedicated L2 caches to meet demands for more powerful processing. Intel®’s 65nm process is the most advanced chip manufacturing technology, delivering breakthrough performance, enhanced media experience, and low power consumption. Intel®

65nm dual-core processors utilize the latest package technologies for a thinner, lighter design without compromising performance.

64-bit CPU support

64-bit computing, the next generation technology to replace current 32-bit architecture, delivers advanced system performance, faster memory access and increased productivity. This motherboard provides excellent compatibility and flexibility by supporting either 64-bit or 32-bit architecture.

DDR2 memory support

The motherboard supports DDR2 memory that features data transfer rates of

667/533 MHz to meet the higher bandwidth requirements of the latest 3D graphics, multimedia, and Internet applications.

SerialATA3.0 Gb/s technology

This motherboard supports the next-generation hard drives based on the Serial ATA (SATA) 3Gb/s storage specification, delivering enhanced scalability and doubling the bus bandwidth for high-speed data retrieval and saves. Easily backup photos, videos and other entertainment contents to external devices. See page 1-30 for details.

S/PDIF digital sound ready

The motherboard supports the S/PDIF-out (SONY-PHILIPS Digtal Interface) function through the S/PDIF interface at mid-board. It allows to transfer digital audio without converting to analog format and keeps the best signal quality. See page 1-28 for details.

ASUS P5S-MX SE

1-

High Definition Audio

Enjoy high-end sound quality on your PC! The onboard 6-channel HD audio (High

Definition Audio, previously codenamed Azalia) CODEC enables high-quality 192KHz/24-bit audio output, jack-sensing feature.

1.3.2ASUS Special features

ASUS Q-Fan technology

The ASUS Q-Fan technology smartly adjusts the fan speeds according to the system loading to ensure quiet, cool, and efficient operation. See page 2 27 for details.

ASUS MyLogo™

This new feature present in the motherboard allows you to personalize and add style to your system with customizable boot logos.

ASUS EZ Flash

With the ASUS EZ Flash, you can easily update the system BIOS even before loading the operating system. No need to use a DOS-based utility or boot from a floppy disk. See page 2-3 for details.

ASUS CrashFree BIOS 2

This feature allows you to restore the original BIOS data from the support CD in case when the BIOS codes and data are corrupted. This protection eliminates the need to buy a replacement ROM chip. See page 2-6 for details.

1-	Chapter 1: Product introduction

1.4Before you proceed

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

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

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

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

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

•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.

Onboard LED

The motherboard comes with a standby power LED that lights up to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should shut down the system and unplug the power cable before removing or plugging in any motherboard component. The illustration below shows the location of the onboard LED.

SB_PWR

P5S-MX SE

			ON	OFF
			Standby	Powered
			Power	Off

P5S-MX SE Onboard LED

ASUS P5S-MX SE

1-

1.5Motherboard overview

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 can cause you physical injury and damage motherboard components.

1.5.1Placement 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.

1.5.2Screw holes

Place six (6) screws into the holes indicated by circles to secure the motherboard to the chassis.

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

Place this side towards the rear of the chassis

P5S-MX SE

1-

Chapter 1: Product introduction

1.5.3Motherboard layout

			18.3cm(7.2in)
PS2_USB_PWR
PS/2KBMS
T: Mouse
B: Keyboard
ATX12V
COM1
PORT			LGA775
PARALLEL
VGA1
USB12
LAN1_USB34			SIS
	USBPW		671FX
AUDIO
	PS2
CHA FAN		USB78
Attansic			PCIEX16
PHY
			-660
		PCIEX1_1	RTM876

SUPER I/O

P5S-MX SE

PCI1

AMI

BIOS

					DIMM1 (64 bit,240-pin module)
CR2032 3V					DDR2
Lithium Cell
CMOS Power

DDR2 DIMM2 (64 bit,240-pin module)

SIS 968

				PCI2	SB_PWR
ALC662			CHASSIS	FLOPPY	USB56
	CD	AAFP	SPDIF_OUT
					SATA2

CPU_FAN

EATXPWR

24.4cm(9.6in)

SPEAKER	PRI IDE

CLRTC	PANELF
SATA1

Refer to section 1.10 Connectors for more information about rear panel connectors and internal connectors.

ASUS P5S-MX SE

1-

1.5.4Layout contents

	Slots			Page
	1.		DDR2 DIMM slots	1-16
	2.		PCI slots	1-23
	3.		PCI Express x1 slots	1-23
	4.		PCI Express x16 slot	1-23
	Jumper			Page
	1.		Clear RTC RAM (3-pin CLRTC)	1-24
	2. USB device wake-up (3-pin USBPW1-4, USBPW56, PS2-USBPW)			1-25
	Rear panel connectors			Page
	1.		PS/2 mouse port (green)	1-26
	2.		Parallel port	1-26
	3.		LAN (RJ-45) port	1-26
	4.		Line In port (light blue)	1-26
	5.		Line Out port (lime)	1-26
	6.		Microphone port (pink)	1-26
	7.		USB 2.0 ports 1 and 2	1-27
	8.		USB 2.0 ports 3 and 4	1-27
	9.		VGA port	1-27
	10.		Serial port	1-27
	11.		PS/2 keyboard port (purple)	1-27
	Internal connectors			Page
	1.		Floppy disk drive connector (34-1 pin FLOPPY)	1-28
	2.	Digital Audio connector (4-1 pin SPDIF_OUT)		1-28
	3.		IDE connector (40-1 pin PRI_IDE)	1-29
	4.		Serial ATA connectors (7-pin SATA1, SATA2)	1-30
	5.		USB connectors (10-1 pin USB56 78)	1-31
	6.	Optical drive audio connector (4-pin CD)		1-31
	7.		CPU and chassis fan connectors (4-pin CPU_FAN,	1-32
			3-pin CHA_FAN)
	8.	Chassis intrusion connector (4-1 pin CHASSIS)		1-33
	9.	Front panel audio connector (10-1 pin AAFP)		1-33
	10. ATX power connectors (24-pin EATXPWR, 4-pin ATX 12V)			1-34
	11.		System panel connector (10-1 pin PANEL)	1-35
1-			Chapter 1: Product introduction

1.6Central Processing Unit (CPU)

The motherboard comes with a surface mount LGA775 socket designed for the Intel® Core™2 Duo/Pentium® D/Pentium® 4 and Celeron® processors.

•Make sure the AC power is off before you install the CPU.

• If installing a dual-core CPU, connect the chassis fan cable to the chassis fan connector to ensure system stability.

• Upon purchase of the motherboard, make sure that the PnP cap is on the socket and the socket contacts are not bent. Contact your retailer

immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket contacts/motherboard components. ASUS will shoulder the cost of repair only if the damage is shipment/transit-related.

•Keep the cap after installing the motherboard. ASUS will process Return

MerchandiseAuthorization (RMA) requests only if the motherboard comes with the cap on the LGA775 socket.

•The product warranty does not cover damage to the socket contacts resulting from incorrect CPU installation/removal, or misplacement/loss/ incorrect removal of the PnP cap.

ASUS P5S-MX SE

1-

1.6.1Installing the CPU

To install a CPU:

1.Locate the CPU socket on the motherboard.

P5S-MX SE

P5S-MX SE CPU Socket 775

Before installing the CPU, make sure that the cam box is facing towards you and the load lever is on your left.

2.Press the load lever with your thumb (A), then move it to the left (B) until it is released from the retention tab.

Retention tab	A
Load lever	PnP cap

BThis side of the socket box should face you.

To prevent damage to the socket pins, do not remove the PnP cap unless you are installing a CPU.

3.Lift the load lever in the direction of the arrow to a 135º angle.

1-10	Chapter 1: Product introduction

4.Lift the load plate with your thumb and forefinger to a 100º angle (A), then push the PnP cap from the load plate window to remove (B).

B

A

Load plate

Alignment key

5.Position the CPU over the socket, making sure that the gold triangle is on the bottom left corner of the socket then fit the socket alignment key into the CPU notch.

CPU notch

Gold triangle mark

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

6.	Close the load plate (A), then	A
	push the load lever (B) until it
	snaps into the retention tab.
7.	If installing a dual-core CPU,	B
	connect the chassis fan cable

to the chassis fan connector to ensure system stability.

The motherboard supports Intel® LGA775 processors with Hyper-Threading Technology. Refer to the Appendix for more information on these CPU features.

ASUS P5S-MX SE

1-11

1.6.2Installing the CPU heatsink and fan

The Intel® LGA775 processor requires a specially designed heatsink and fan assembly to ensure optimum thermal condition and performance.

•When you buy a boxed Intel® processor, the package includes the CPU fan and heatsink assembly. If you buy a CPU separately, make sure that you use only Intel® certified multi directional heatsink and fan.

•Your Intel® LGA775 heatsink and fan assembly comes in a push-pin design and requires no tool to install.

•If you purchased a separate CPU heatsink and fan assembly, make sure that you have properly applied Thermal Interface Material to the CPU heatsink or CPU before you install the heatsink and fan assembly.

Make sure that you have installed the motherboard to the chassis before you install the CPU fan and heatsink assembly.

To install the CPU heatsink and fan:

1.Place the heatsink on top of the installed CPU, making sure that the four fasteners match the holes on the motherboard.

Orient the heatsink and fan assembly such that the CPU fan cable is closest to the CPU fan connector.

Motherboard hole

Fastener

Narrow end of the groove

	Make sure to orient each fastener with the narrow end of the groove pointing
	outward. (The photo shows the groove shaded for emphasis.)
1-12	Chapter 1: Product introduction

	2. Push down two fasteners at a time in
	a diagonal sequence to secure the				B
	heatsink and fan assembly in place.
					A
		A	B		B
		B	A

A

3.Connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN.

P5S-MX SE

CPU_FAN

GND CPU FAN PWR CPU FAN IN CPU FAN PWM

CHA_FAN

GND +12V Rotation

P5S-MX SE Fan Connectors

Do not forget to connect the CPU fan connector! Hardware monitoring errors can occur if you fail to plug this connector.

ASUS P5S-MX SE

1-13

1.6.3Uninstalling the CPU heatsink and fan

To uninstall the CPU heatsink and fan:

1.	Disconnect the CPU fan cable from
	the connector on the motherboard.
2.	Rotate each fastener
	counterclockwise.
3.	Pull up two fasteners at a time in
	a diagonal sequence to disengage					B
	the heatsink and fan assembly
	from the motherboard.				A	A
						B
		A	B

B

A

4.Carefully remove the heatsink and fan assembly from the motherboard.

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5.Rotate each fastener clockwise to ensure correct orientation when reinstalling.

The narrow end of the groove should point outward after resetting. (The photo shows the groove shaded for emphasis.)

Narrow end of the groove

Refer to the documentation in the boxed or stand-alone CPU fan package for detailed information on CPU fan installation.

ASUS P5S-MX SE

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