HP ProDesk 400 G3 MT Business PC HP ProDesk 480 G3 MT Business PC HP ProDesk 490 G3 MT Business PC - Maintenance and Service Guide

Fan sink
Description
Fan sink, standard
Fan sink, BFR/PVC free
WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system components to
cool before touching.
NOTE: System board appearance may vary.
1. Prepare the computer for disassembly (Preparation for disassembly on page 23).
2. Remove the access panel (Access panel on page 24).
3. Disconnect the fan cable from the system board connector labeled CPUFAN (1), and then loosen the four
captive Torx T15 screws (2) that secure the fan sink to the system board.
CAUTION: Remove fan sink retaining screws in diagonally opposite pairs (as in an X) to even the
downward forces on the processor.
4. Lift the fan sink from atop the processor.
CAUTION: Fan sink retaining screws should be tightened in diagonally opposite pairs (as in an X) to evenly
seat the heat sink on the processor.
56 Chapter 4 Removal and replacement procedures: Microtower