Asus M4A78-EM 1394 Specifications download pdf (Page 20)

1.6 Central Processing Unit (CPU)

This motherboard comes with an AM2+ / AM2 socket designed for AMD

Phenom™ x4 /

Phenom™ x3 / Athlon™ x2 / Athlon™ / Sempron™ processors. It also supports AM3 CPUs

including Phenom™ II / Athlon™ x4 / Athlon™ x3 / Athlon™ x2 processors.

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

Socket lever

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

in completely.

Right

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!

Gold triangle

Small triangle

The AM2+ / AM2 socket has a different pinout from the 940-pin socket designed for the

AMD Opteron™ processor. Use a CPU that is designed for the AM2+ / AM2 socket.

Chapter 1: Product introduction1-8

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Asus M4A78-EM 1394 Specifications Page 20