Central Processing Unit (Cpu); Installing The Cpu - Asus M3N78 SE User Manual

1.6

Central Processing Unit (CPU)

The motherboard comes with an AM2+ / AM2 socket designed for AMD
Phenom™ FX / Phenom / Athlon™ / Sempron™ processor
The AM2/AM2+ socket has a different pinout from the 940-pin socket designed for the
AMD Opteron™ processor. Ensure that you use a CPU that is designed for the AM2/AM2+
socket. 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!
1.6.1

Installing the CPU

To install a CPU:
1. Locate the CPU socket on the motherboard.
M3N78 SE
M3N78 SE CPU socket 940
2. Unlock the socket by pressing the lever
sideways, then lift it up to a 90º angle.
Make sure that the socket lever is lifted up to
a 90º 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.
ASUS M3N78 SE
Small triangle
AM2+ / AM2
®
Socket lever
Gold triangle
1-7