Replacing The Microprocessor; Replacing The Power Supply - IBM 2292 Hardware Maintenance Manual

4. Press the buttons on the sides of the computer and pivot the rear end of the
cover up toward the front of the computer.

Replacing the microprocessor

1. Shut down your operating system and turn off the computer.
2. Remove the cover. See "Removing the cover" on page 34.
3. Remove the air baffle covering the microprocessor on the system board by
squeezing the plastic tabs that secure the air baffle to the chassis.
4. Loosen the two captured screws that hold the fan sink in place and pivot them
off the fan sink notches.
5. Gently twist the fan sink to break the thermal grease seal and lift the fan sink
off the microprocessor.
Note: If the thermal grease seal cannot be broken, you can turn on the
computer for a few mimutes to heat the microprocessor and loosen the thermal
grease.
6. Pull out and lift up the processor socket lever to its maximum vertical position
to release the microprocessor module.
7. Gently lift the microprocessor off the microprocessor socket.
Notes:
a. Note the position of the beveled corner on the microprocessor. When
installing the new microprocessor, the beveled corner on the microprocessor
must be properly oriented with the beveled corner in the socket.
b. When installing the new microprocessor, make sure to reinstall the fan sink
to insure proper cooling.
8. Reverse this procedure to install the new microprocessor.
9. Go to "Completing the FRU replacement." on page 45 when the microprocessor
has been installed.

Replacing the power supply

1. Shut down your operating system and turn off the computer.
2. Remove the cover. See "Removing the cover" on page 34.
3. Disconnect all power supply cables from the system board and the drives. See
"Identifying parts on the system board" on page 33.
Chapter 6. Replacing FRUs
35