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4. In the order indicated on the heat sink, loosen the four silver captive Torx screws (1) – (4), and
then lift the heat sink out of the computer (5).
CAUTION: Remove heat sink retaining screws in diagonally opposite pairs (as in an X) to even
the downward forces on the processor. This is especially important as the pins on the socket are
very fragile and any damage to them may require replacing the system board.
CAUTION: To reduce a degradation in thermal performance, be sure not to touch the thermal
grease on the surface of the processor or the heat sink.
Figure 6-51 Removing the processor heat sink — 6300 models
To replace the heat sink, reverse the removal procedures.
Processor heat sink – model 8300
To remove the heat sink:
1. Prepare the computer for disassembly (see
Preparing to disassemble the computer on page 27).
2. Remove the center access panel (see
Access panel on page 34).
3. If installed, remove the graphics heat sink (see
Graphics heat sink on page 63).
4. In the order indicated on the heat sink, loosen the four silver captive Torx screws (1) – (4), and
then lift the heat sink out of the computer (5).
CAUTION: Remove heat sink retaining screws in diagonally opposite pairs (as in an X) to even
the downward forces on the processor. This is especially important as the pins on the socket are
very fragile and any damage to them may require replacing the system board.
5. Remove the non-captive Torx screw from the top of the heat sink (5).
Heat sinks – Graphics board and processor 65