ASROCK Fatal1ty Z77 Professional-M series User Manual page 20

orientation key notch
Pin1
orientation key notch
For proper installation, please ensure to match the two orientation
key notches of the CPU with the two alignment keys of the socket.
Step 2-3. Carefully place the CPU into the
socket.
Step 2-4. Verify that the CPU is within the sock-
et and properly mated to the orient
keys.
Step 3. Close the socket:
Step 3-1. Flip the load plate onto the IHS.
Step 3-2. Press down the load lever, and se-
cure it with the load plate tab under
the retention tab. The protection
cover will automatically come off by
itself.
Please save and replace the cover if the processor is removed. The
cover must be placed if you wish to return the motherboard for after
service.
1155-Pin CPU
20
alignment key
alignment key
1155-Pin Socket
Pin1