Toshiba PORTEGE R300, Maintenance Manual

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4.23 Heat sink / CPU plate / CPU 4 Replacement Procedures
4.23 Heat sink / CPU plate / CPU
Removing the Heat sink / CPU plate / CPU
To remove the heat sink (only dual core model) or CPU plate (only single core model) / CPU,
follow the steps below and refer to Figure 4-37 and Figure 4-38.
CAUTION: 1) The CPU can become very hot during operation. Be sure to let it cool
before starting repair work.
2) When you remove the heat sink, wipe the grease off of the bottom of the
heat sink and top of the CPU. Apply new grease when installing.
1. Remove the following screws securing the CPU holder in the opposite order of the
marks (number) on the holder and remove the CPU holder and the heat sink (only
dual core model) or CPU plate (only single core model).
•
M2
×
4BS S-THIN HEAD
×
3
2. Remove the CPU .
M2
×
4BS S-THIN HEAD
CPU holder
Heat sink
CPU
Figure 4-37 Removing the Heat sink (only dual core model) / CPU
M2
×
4BS S-THIN HEAD
CPU plate
Figure 4-38 Removing the CPU plate (only single core model) / CPU
PORTÉGÉ R300 Maintenance Manual (960-591) [CONFIDENTIAL] 4-45