Step 1. Open the socket:
Step 1-1. Disengaging the lever by depressing
down and out on the hook to clear re-
tention tab.
Step 1-2. Rotate the load lever to fully open posi-
tion at approximately 135 degrees.
Step 1-3. Rotate the load plate to fully open posi-
tion at approximately 100 degrees.
Step 2. Remove PnP Cap (Pick and Place Cap).
1. It is recommended to use the cap tab to handle and avoid kicking
off the PnP cap.
2. This cap must be placed if returning the motherboard for after
service.
Step 3. Insert the 1156-Pin CPU:
Step 3-1. Hold the CPU by the edges where are
marked with black lines.
Step 3-2. Orient the CPU with IHS (Integrated Heat
Sink) up. Locate Pin1 and the two ori-
entation key notches.
orientation key notch
Pin1
orientation key notch
1156-Pin CPU
For proper inserting, please ensure to match the two orientation
key notches of the CPU with the two alignment keys of the
socket.
1 2
1 2
1 2
1 2
1 2
ASRock P55M Pro Motherboard
alignment key
Pin1
alignment key
1156-Pin Socket