Asus M4A78-AM - Manual (Page 18)

1.6 Central Processing Unit (CPU)
The motherboard comes with a CPU socket designed for AMD ® AM3 Phenom™ II / Athon™
X4 / Athon™ X3 / Athlon™ X2 / processors and AM2+ / AM2 Phenom™ X4 / Phenom™ X3 /
Athlon™ X2 / Athlon™ / Sempron™ processors.
The CPU socket is not compatible with AMD ® Opteron™ processors. Do not install an
Opteron™ processor on this motherboard.
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 90°-100° angle, otherwise the CPU will not fit in
completely.
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