User Guide

Removing the Microprocessor: Dell Dimension P133a, P166a, M166a, M200a, and M233a

WARNING: The microprocessor chip can get extremely hot during intense system operations. Be sure that the chip has had sufficient time to cool before you touch it.

1. Remove the microprocessor securing clip from the microprocessor/heat sink assembly. Press down on the folded part of the clip with a small screwdriver to release the clip.
2. Push outward and then upward on the microprocessor release lever, and rotate the lever to its fully vertical position.
3. Lift the microprocessor/heat sink assembly out of its socket.

To install the replacement microprocessor/heat sink assembly, ensure that the microprocessor release lever is in its fully vertical position to allow the microprocessor pins to easily slip into the socket. When the microprocessor/heat sink assembly is in place, rotate the microprocessor release lever to its horizontal position. Hook the microprocessor securing clip over the socket tab nearest the front of the system board, and then snap it over the tab on the back of the socket.

NOTE: Pin 1 on the microprocessor is located on the corner with the largest bevel. The pin-1 hole in the microprocessor socket is located on the corner where the holes are in a diagonal pattern.