5.Disconnect the fan cable from the system board connector labeled CPUFAN (1), and then lift the heat sink from atop the processor (2).
When reinstalling the fan sink, make sure that its bottom has been cleaned with an alcohol wipe and fresh thermal grease has been applied to the top of the processor.
CAUTION: Fan sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly seat the fan sink on the processor to avoid damage that could require replacing the system board.
Make sure to replace the fan duct. Failure to install the fan duct may cause the computer to overheat.
Processor
Description | Spare part number |
|
|
Intel Core i7 processor |
|
|
|
4770, 3.4 GHz, | |
|
|
Intel Core i5 processors |
|
|
|
4670, 3.4 GHz, | |
|
|
4570, 3.2 GHz, | |
|
|
1.Prepare the computer for disassembly (Preparation for disassembly on page 85).
2.Remove the access panel (Access panel on page 86).
3.Remove the fan duct (Fan duct on page 115).
4.Remove the fan sink (Fan sink on page 126).
Processor 127
