Asus M4A78LT-M Manuel utilisateur

Motherboard

installation guide

E4973

Second Edition V2

August 2009

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 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





Safety information

Electrical safety

•



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.

•

Ensure 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.

•



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, ensure 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.

•



service technician or your retailer.

ASUS Motherboard installation guide 5

1.1.1 Intel LGA775 Socket

1. Locate the CPU socket on the

motherboard.

2. Release the load lever from the

retention tab and lift the load plate.

Then push the PnP cap from the

load plate window to remove

To prevent damage to the socket

pins, do not remove the PnP cap

unless you are installing a CPU.

3. Position the CPU over the socket. 4. Ensure that the gold triangle is

on the bottom‑left corner of the

socket.

Chapter 1: Quick Start

1.1 Installing the CPU

Pick and Place Cap (PnP Cap)

6 Chapter 1: Quick Start

5. Fit the socket alignment key into the CPU notch.

6. Close the load plate, then push the load lever until it snaps into the retention

tab.



orientation. DO NOT force the

CPU into the socket to prevent

bending the connectors on the

socket and damaging the CPU!

1.1.2 Intel LGA1366 Socket

1. Locate the CPU socket on the

motherboard.

To prevent damage to the socket

pins, do not remove the PnP cap

unless you are installing a CPU.

2. Press the load lever with your

thumb (A), then move it to the left

(B) until it is released from the

retention tab.

Load lever

Retention tab

3. Lift the load lever in the direction of

the arrow to a 135º angle.

4. Lift the load plate with your thumb



Load plate

ASUS Motherboard installation guide 7



socket to prevent bending the connectors on the socket and damaging the CPU!

6. Position the CPU over the socket,

ensuring that the gold triangle is on

the bottom‑left corner of the socket,



into the CPU notch.

5. Remove the PnP cap from the CPU

socket.

PnP cap

Gold

triangle

mark

Alignment key

CPU notch

8. Close the load plate (A), and then

push the load lever (B) until it snaps

into the retention tab. A

8 Chapter 1: Quick Start

1.1.3 Intel LGA1156 Socket

1. Locate the CPU socket on the motherboard.

To prevent damage to the socket

pins, do not remove the PnP cap

unless you are installing a CPU.

Load lever

Retention tab

2. Press the load lever with your

thumb (A), and then move it to the

right (B) until it is released from the

retention tab.

3. Lift the load lever in the direction

of the arrow until the load plate is

completely lifted.

5. Position the CPU over the socket,

ensuring that the gold triangle is on

the bottom‑left corner of the socket,



keys into the CPU notches.



orientation. DO NOT force the

CPU into the socket to prevent

bending the connectors on the

socket and damaging the CPU!

Load plate

PnP cap

Gold

triangle

mark

Alignment keys

CPU notches

4. Remove the PnP cap from the

CPU socket.

ASUS Motherboard installation guide 9

7. Close the load plate (A), and

then push down the load lever

(B), ensuring that the front edge

of the load plate slides under the

retention lock (C).

The Thermal Interface Material

is toxic and inedible. DO NOT

eat it. If it gets into your eyes

or touches your skin, wash

it off immediately, and seek

professional medical help.

Some heatsinks come with

pre‑applied thermal paste. If

so, skip this step.

6. Apply some Thermal Interface

Material to the exposed area of

the CPU that the heatsink will be

in contact with, ensuring that it is

spread in an even thin layer.

8. Insert the load lever under the

retention tab.

3. Position the CPU above the socket

such that the CPU corner with the

gold triangle matches the socket

corner with a small triangle.

Carefully insert the CPU into the



4. 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.

socket to prevent bending the connectors on the socket and damaging the CPU!

1.1.4 AMD AM2 Socket

1. Locate the CPU socket on the

motherboard.

2. Press the lever sideways to unlock

the socket, then lift it up to a 90º

angle.

Ensure that the socket lever is lifted up to 90º angle. Otherwise, the CPU will



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