Toshiba Tecra A2-S239 Maintenance Manual - Page 228

4 Replacement Procedures 4.7 Cooling Fin/CPU 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 holes (small and large) fitted to the bosses 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 4-24 Satellite A50/TECRA A2 Maintenance Manual (960-478)