HP xw8600 HP xw8600 Workstation Service and Technical Reference Guide - Page 118

System processor, Removing a system processor

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CAUTION: If a second heatsink is installed, do not pinch the processor 1 heatsink fan wire under the processor 2 heatsink. Do not overtighten the heatsink screws. If you overtighten them, you might strip the threads in the system board tray. Do not fully tighten one screw and then move on to the next. Instead, tighten all screws a little at a time, ensuring that the processor remains level. 6. Tighten all screws partially so the processor heatsink remains level. 7. Tighten each set of diagonally opposed screws a little at a time to 6 in.-lbs. of torque as shown in the following illustration. Figure 4-72 Identifying the proper screw tightening sequence 8. Connect the processor heatsink fan connector to the system board. 9. Replace the memory riser duct, if necessary, and then replace the side access cover. System processor This section describes how to remove and install a system processor. Removing a system processor 1. Disconnect power from the system (see Predisassembly procedures on page 52). 2. Remove the side access panel (see Removing the side access panel on page 57). 3. Remove the processor heatsink (see Removing the processor heatsink on page 106). 108 Chapter 4 Removal and replacement procedures ENWW

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CAUTION:
If a second heatsink is installed, do not pinch the processor 1 heatsink fan wire under
the processor 2 heatsink.
Do not overtighten the heatsink screws. If you overtighten them, you might strip the threads in the
system board tray.
Do
not
fully tighten one screw and then move on to the next. Instead, tighten all screws a little at
a time, ensuring that the processor remains level.
6.
Tighten all screws partially so the processor heatsink remains level.
7.
Tighten each set of diagonally opposed screws a little at a time to 6 in.-lbs. of torque as shown in
the following illustration.
Figure 4-72
Identifying the proper screw tightening sequence
8.
Connect the processor heatsink fan connector to the system board.
9.
Replace the memory riser duct, if necessary, and then replace the side access cover.
System processor
This section describes how to remove and install a system processor.
Removing a system processor
1.
Disconnect power from the system (see
Predisassembly procedures
on page
52
).
2.
Remove the side access panel (see
Removing the side access panel
on page
57
).
3.
Remove the processor heatsink (see
Removing the processor heatsink
on page
106
).
108
Chapter 4
Removal and replacement procedures
ENWW