3.Turn the lock screw one-half turn counterclockwise to release the CPU module (you should hear a light snap). Carefully lift the CPU module off of its socket on the motherboard.

IMPORTANT: See the Caution on the next page before reinstalling the CPU module!

Figure 2-17. Removing the CPU Module

Reassembly Notes

Caution

Each time you install a new CPU module, you must also replace the heat sink’s thermal pad to maintain optimum heat transfer. Use a sharp knife or scraper to carefully remove the old thermal pad from the heat sink, then attach the new thermal pad.

•The CPU module is keyed for installation, and can be inserted only one way.

•Carefully insert the CPU module into the motherboard, and turn the lock screw one-half turn clockwise to secure the CPU module.

•Be sure to replace the thermal pad on the heatsink, as described in the reassembly notes on page 2-27.

Service Manual

Removal and Replacement

2-29