Dell PowerVault 775N Installation And Troubleshooting Manual page 60

A microprocessor
A heat sink
Two securing clips
A cooling fan
A VRM, if adding a second microprocessor
Adding or Replacing a Microprocessor
CAUTION: Before you perform this procedure, you must turn off the system and disconnect it from its
power source. For more information, see
Your System."
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions in your System
Information document.
1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
2. Remove the cover (see
If you are installing a second microprocessor, go to step 6.
NOTE: The system is designed to allow you to remove the microprocessor heat sink without removing the
microprocessor cooling fan. However, you can remove the fan to provide easier access to the heat sink (see
"Removing a Cooling
3. Remove the microprocessor heat sink:
a. Press down on the heat-sink securing clips to release the clips from the retaining tabs on the ZIF socket (see
Figure 6-7).
b. Remove the heat sink securing clips.
CAUTION: The microprocessor and heat sink can become extremely hot. Be sure the microprocessor has
had sufficient time to cool before handling.
NOTICE: Never remove the heat sink from a microprocessor unless you intend to remove the microprocessor. The
heat sink is required to maintain proper thermal conditions.
c. Remove the heat sink.
Figure 6-7. Removing and Installing the Heat Sink
"Safety First—For You and Your System
"Removing the Cover" in "Troubleshooting Your System").
Fan").
" in "Troubleshooting