Replacing the microprocessor
The procedure for replacing the microprocessor is different depend on the machine
type.
Machine types 8293, 8294, 8295, 8473, 8474, 8710, 8711, 8773,
8774, 8778, 8779, 8818, 8819, 9217, 9218, and 9219
Note: The new microprocessor is shipped with a new heat sink. Make sure to use
142
Hardware Maintenance Manual
the new heat sink when installing the new microprocessor.
1. Remove the cover. See "Removing the cover" on page 121.
2. Lift the fan duct off the heat sink fan.
3. Disconnect the heat sink and fan assembly cable from the system board. See
the system board illustration for your machine type at "Identifying parts on
the system board" on page 123.
4. Remove the four screws securing the heat sink and fan assembly to the system
board.
5. Lift the heat sink and fan assembly off the failing system board.