IBM 2158240 - Aptiva E - 2158 Maintenance And Service Manual page 130

8. With the processor card golden fingers pointing downward, align the
processor to the posts of the URM.
9. Lower the processor into to the CPU connector on the system board until the
golden fingers touch the connector.
10. Press down the processor until the golden fingers completely fit into the
connector and the latches on the sides lock the processor into place.
Check the sides of the URM. The latches should be properly inserted into the
appropriate slots on the retention mechanism.
IMPORTANT: If you find the processor card difficult to insert into the slot, do
not force it. The orientation of the heatsink may be incorrect.
CAUTION: The heatsink becomes very hot when the system is on. NEVER
touch the heatsink with any metal or with your hands.
98