Processor - HP EliteDesk 800 G1 Tower Service Manual

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:
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
Intel Core i7 processor (includes thermal material)
4770, 3.4 GHz, 8-MB L3 cache, 86W
Intel Core i5 processors (include thermal material)
4670, 3.4 GHz, 6-MB L3 cache, 86W
4570, 3.2 GHz, 6-MB L3 cache, 86W
1.
Prepare the computer for disassembly
2.
Remove the access panel
3.
Remove the fan duct
4.
Remove the fan sink
136 Chapter 6 Removal and replacement procedures: Small Form Factor (SFF)
Fan sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to
(Access panel on page
(Fan duct on page
(Fan sink on page
(Preparation for disassembly on page
95).
124).
135).
Spare part number
727373-001
727381-001
727380-001
94).