IBM ThinkPad A22e Hardware Maintenance Manual page 82

When installing:
1. When attaching the CPU to the socket, do as shown in
the step 1 in this figure.
2. Rotate the the head of the screw (A) to the direction of
the arrow 2 to lock the CPU.
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ThinkPad A21e, A22e, i 1800 (MT 2655/2663/2664)
A
2
1
Removing and replacing a FRU