HP Xw8400 HP xw8400 Workstation - Service and Technical Reference Guide - Page 106

Processor, Removing the processor

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4. Insert and tighten the four CPU heatsink screws. First, tighten all of the screws partially so that the CPU heatsink remains level. Next, fully tighten one pair of diagonally opposite screws (1), and then fully tighten the remaining pair (2). Tighten firmly to a torque setting of 6 in-lb. Figure 4-65 Identifying proper screw fastening order 5. Connect the CPU heatsink fan connector to the system board (2) as shown in Figure 4-45. Processor Removing the processor 1. Disconnect power from the system ( Pre-disassembly procedures on page 50). Remove the access panel (Access panel on page 57) and the CPU heatsink (Removing the CPU heatsink on page 93). 96 Chapter 4 Removal and replacement procedures ENWW

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4.
Insert and tighten the four CPU heatsink screws. First, tighten all of the screws partially so that the
CPU heatsink remains level. Next, fully tighten one pair of diagonally opposite screws
(1)
, and then
fully tighten the remaining pair
(2)
. Tighten firmly to a torque setting of 6 in-lb.
Figure 4-65
Identifying proper screw fastening order
5.
Connect the CPU heatsink fan connector to the system board
(2)
as shown in Figure 4–45.
Processor
Removing the processor
1.
Disconnect power from the system (
Pre-disassembly procedures
on page
50
). Remove the access
panel (
Access panel
on page
57
) and the CPU heatsink (
Removing the CPU heatsink
on page
93
).
96
Chapter 4
Removal and replacement procedures
ENWW