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4.7 Cooling Fin/CPU 4 Replacement Procedures
NOTE: Apply the silicon grease enough to cover the chip surface using the special
applicator. When installing the cooling fin, make sure the bottom of the fin covers the top
of CPU.
CPU Chip
Figure 4-16 Applying Silicon Grease
5. Install the cooling fin.
6. Place the CPU holder on the cooling fin with its hole fitted to the boss of the cooling
fin. Fix the CPU holder with following screws in the order of the marks (1 to 3) on
the CPU holder.
• M2x4B BIND screw x3
7. Install the CPU cover from the front side and secure it with the following screws.
• M2.5x18B THIN BIND screw x1
• M2.5x14B THIN BIND screw x1
Satellite A50S/TECRA A3X Maintenance Manual (960-534) [CONFIDENTIAL] 4-25