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4. Loosen the two silver captive Torx screws on the heat sink (2), and then lift the heat sink out of the
computer.
To replace the heat sink, reverse the removal procedures.
Processor heat sink
To remove the heat sink:
1. Prepare the computer for disassembly (see
Preparing to disassemble the computer on page 35).
2. Remove the access panel (see
Access panel on page 41).
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).
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. If still installed, remove the Torx screw on the left part of the heat sink (5).
64 Chapter 5 Removal and Replacement Procedures All-in One (AIO) Chassis