HP 800 G1 E1Z88UT#ABA, E1Z84UT E1Z84UT#ABA, 800 G1 E1Z89UTABA, 800 G1 E3T09UT#ABA manual Processor

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, 8-MB L3 cache, 86W	727373-001
Intel Core i5 processors
4670, 3.4 GHz, 6-MB L3 cache, 86W	727381-001
4570, 3.2 GHz, 6-MB L3 cache, 86W	727380-001

1.Prepare the computer for disassembly (Preparation for disassembly on page 94).

2.Remove the access panel (Access panel on page 95).

3.Remove the fan duct (Fan duct on page 124).

4.Remove the fan sink (Fan sink on page 135).

136 Chapter 6 Removal and replacement procedures: Small Form Factor (SFF)