Toshiba Satellite U300 Maintenance Manual page 223

Replacement Procedures
4. Unlock the CPU by rotating the cam on the CPU socket 120 degrees to the
5. Remove the CPU.
Installing the CPU
The following describes the procedure for installing the CPU (See Figure 4-27 to 4-28).
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 120 degrees to the clockwise with a flat-blade
4. If there is already silicon grease on the CPU, clean it with a cloth.
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counterclockwise with a flat-blade screwdriver.
Figure 4-28 Removing the CPU
screwdriver.
Using a special applicator, apply silicon grease so that the CPU chip on the CPU is
completely covered.
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48Satellite U300 and Satellite Pro U300 Maintenance Manual (960-Q08)