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4.21 CPU fin & CPU 4 Replacement Procedures
3. Unlock the CPU by rotating the cam on the CPU socket 180 degrees to the
counterclockwise with a flat-blade screwdriver.
4. Remove the CPU.
Cam
Figure 4-33 Removing the CPU
Installing the CPU fin & CPU
The following describes the procedure for installing the CPU fin & CPU (See Figure 4-32 to
4-34).
1. Check that the mark of cam is in the unlocking position.
2. Attach the CPU to the correct position in the CPU socket.
3. Fix the CPU by rotating the cam 180 degrees to the clockwise with a flat-blade
screwdriver.
4. If there is already silicon grease on the CPU, clean it with a cloth.
Using a special applicator, apply silicon grease so that the CPU chip on the CPU is
completely covered.
4-54 [CONFIDENTIAL] QOSMIO G20 Maintenance Manual (960-511)