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4.14 System board/ FAN 4 Replacement Procedures
PORTEGE R100 Maintenance Manual (960-440) 4-37
Installing the FAN
The following describes the procedure for installing the FAN. (See Figures 4-27, 4-28.)
1. Use a soft cloth to remove the old silicon grease from the heat sink fin and CPU
chip.
2. Apply new silicon grease to the heat sink fin and CPU chip using 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 silicon grease.
Figure 4-28 Applying silicon grease
3. Install the FAN and secure it with the following screws.
• M2×4Z BIND screw x3
4. Connect the FAN cable to PJ8780 on the system board and apply the cellophane
tape.