IBM ThinkPad R40 2681 Hardware Maintenance Manual page 117

Removing and replacing a FRU
When installing:
v Attach the system board so that the two small
projections on the base cover fit into the holes provided.
v Make sure that the lever a must be pulled out.
2
1
a
Note: When replacing the system board, you must replace
the thermal pad FRU 5022BZ4023A also.
113
ThinkPad R40