ASUS m4a78lt-m User Manual

This motherboard supports AMD

®

 Phenom™ II / Athlon™ II / Sempron™ 100 series 

processors.

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.

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

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 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!

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

a CPU designed for the AM3 socket. 

Chapter 1: Product introduction

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