HP 4310s - ProBook - Core 2 Duo 2.1 GHz Maintenance And Service Manual page 101

Removal and replacement procedures
Remove the processor:
1. Use a flat-bladed screwdriver to turn the processor locking screw 1 one-half turn counterclockwise, until you
hear a click.
2. Lift the processor 2 straight up and remove it.
✎
When you install the processor, the gold triangle 3 on the processor must be aligned with the triangle 4
embossed on the processor socket.
Reverse this procedure to install the processor.
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