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Fan sink
Description Spare part number
Fan sink 643907-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 75).
2. Remove the computer access panel (
Access Panel on page 76).
3. In the order indicated, loosen the four captive Torx screws that secure the fan sink to the system
board.
CAUTION: Fan sink retaining screws should be removed 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.
Figure 6-34 Loosening the fan sink screws
4. Disconnect the fan cable from the white system board connector labeled CPUFAN (1).
110 Chapter 6 Removal and Replacement Procedures Convertible Minitower (CMT) Chassis