Dell POWEREDGE 840 - Manual (Page 79)

Installing System Components
79
Removing the Processor
CAUTION:
Only trained service technicians are authorized to remove the system cover and access any of the
components inside the system. Before performing any procedure, see your Product Information Guide for
complete information about safety precautions, working inside the computer, and protecting against electrostatic
discharge.
1 Turn off the system, including any attached peripherals, and disconnect the system from the electrical
outlet.
2 Open the system. See "Opening the System" on page 43.
3 Remove the cooling shroud. See "Removing the Cooling Shroud" on page 64.
NOTICE:
Never remove the heat sink from a processor unless you intend to remove the processor. The heat sink is
necessary to maintain proper thermal conditions.
4 Remove the heat sink. See Figure 3-22.
a Open one securing clip by pressing the end of the clip down and away from the retention module
until it clears the securing tab on the retention module, and then lift the clip up.
b Repeat step a for the remaining securing clip.
c Rotate the heat sink slightly and then lift the heat sink off the processor. Do not pry the processor
off the heat sink.
d If you are reusing the heat sink with the new processor, clean the contact side of the heat sink and
set it aside for use later in the processor installation procedure.