Asus M4A785TD-V EVO U3S6: 1.6 Central Processing Unit (CPU)

1.6 Central Processing Unit (CPU)

This motherboard comes with an AM3 socket designed for Phenom™ II / Athlon™ II /

Sempron™ 100 series processors.

The AM3 socket has a different pinout from the AM2+/AM2 socket. Ensure that you use a

CPU designed for the AM3 socket. The CPU ts in only one correct orientation. DO NOT

force the CPU into the socket to prevent bending the pins and damaging the CPU!

1.6.1 Installing the CPU

To install a CPU:

1. Locate the CPU socket on the motherboard.

2. Press the lever sideways to unlock the

Socket lever

socket, then lift it up to a 90°-100° angle.

Ensure that the socket lever is lifted up to a 90°-100° angle; otherwise, the CPU will not t

in completely.

3. Position the CPU above the socket such that the CPU

corner with the gold triangle matches the socket corner

with a small triangle.

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

The CPU ts only in one correct orientation.

DO NOT force the CPU into the socket to

prevent bending the pins and damaging the

CPU!

Small triangle

Gold triangle

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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.

6. Install a CPU heatsink and fan following the

instructions that comes with the heatsink package.

You can also refer to section 1.6.2 Installing

heatsink and fan for instructions.

7. Connect the CPU fan cable to the CPU_FAN connector on the motherboard.

DO NOT forget to connect the CPU fan connector! Hardware monitoring errors can occur if

you fail to plug this connector.

ASUS M4A785TD-V EVO 1-9

1.6.2 Installing the heatsink and fan

Ensure that you use only AMD-certied heatsink and fan assembly.

To install the CPU heatsink and fan:

1. Place the heatsink on top of the installed CPU, ensuring that the heatsink ts 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.

• If you purchased a separate CPU heatsink and fan assembly, ensure that a Thermal

Interface Material is properly applied to the CPU heatsink or CPU before you install the

heatsink and fan assembly.

CPU Fan

CPU Heatsink

Retention bracket

Retention Module Base

Retention bracket lock

Your boxed CPU heatsink and fan assembly 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.

2. Attach one end of the retention bracket to the retention module base.

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