Toshiba Satellite A300 series Maintenance Manual page 171

Replacement Procedures
4. Unlock the CPU by rotating the cam on the CPU socket 120 degrees to the
counterclockwise with a flat-blade screwdriver.
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
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.
5. Please apply 0.1cc silicon grease (Shinetsu 7762) or A000018440 (XY0GFCM1000)
GFC-M1 for each repair
NOTE: Apply the silicon grease enough to cover the chip surface using the special
applicator. Thermal pad is fixed for each one, no need special applicator.
Satellite A300 Maintenance Manual(960-Q08)
Figure 4-28 Removing the CPU
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