Gateway 6000 6100 6500 6600 m360 mx6000 mx6100 mx6200 mx6400 mx6500 mx6600 mx6900 nx500 Service Manual

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4
Remove the old processor from the system board.
5
Install the new processor onto the system board making sure that Pin 1 on the processor 
(indicated by the silk-screened arrow on the corner of the processor) aligns with Pin 1 on 
the processor socket (indicated by the absence of a pin hole in the processor socket), then 
use a flat-blade screwdriver to turn the processor lock screw ¼-turn to ½-turn clockwise.
6
If your cooling assembly uses a thermal pad, go to 
-OR-
If your cooling assembly uses thermal grease, remove any thermal grease residue from 
the cooling assembly using a soft cloth and isopropyl alcohol.
7
Place new thermal grease on the processor. Use only enough to cover the CPU die.
8
Replace the cooling assembly by following the instructions in