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4.20 Heat sink/CPU 4 Replacement Procedures
PORTEGE A200 Maintenance Manual (960-499) 4-41
Installing a heat sink
To install a heat sink, perform the following procedure. (See Figure 4-30 and 4-31.)
1. When silicon grease has already been applied to the heat sink (fin) and face of CPU,
remove them cleanly with a soft cloth. Apply silicon grease to the heat sink (fin) and
face of the CPU by a dedicated injector. The face of CPU chip shall be covered
completely with silicon grease.
Caution: When using a dedicated injector, completely cover the face of CPU chip with
Figure 4-31 Applying silicon grease
2. Set the heat sink on the CPU in place. Fix the holder with the following screws.
? M2?4Z BIND screw ?3