Toshiba PORTEGE S100 Maintenance Manual page 273

4.23 Heat sink
Installing the Heat sink
To install the heat sink, follow the steps below and refer to Figure 32 to 4-34.
1. Apply new grease on the IC chip using a special syringe as shown in the following
figure. When silicon grease is already applied to the IC chip and fin, wipe them off
with a close in advance.
CAUTION: When applying new grease by using a special syringe, make sure the grease
2. Place the GPU heat sink on the GPU and secure them with the GPU heat sink
holder and following screw.
• M2×3S
3. Place the GMCH heat sink on the GMCH and secure them with the GMCH heat
sink holder and following screws.
• M2×4B
• M2×3B
4. Place the CPU heat sink on the CPU and secure them with the CPU heat sink
holder and following screws. Be sure to install the screws in the order of the number
marked on the heat sink.
• M2×4B
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covers the surface of the IC chip.
Figure 4-34 Applying new grease
BIND screw
BIND screw
BIND screw
BIND screw
4 Replacement Procedures
×1
×1
×1
×3
4-55