Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 72)

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, read the safety instructions in your System Information
document.
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 " Removing the Cover ").
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 retention
clips (see " Removing a Cooling Fan ").
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 4-28 ).
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.
NOTICE: After removing the heat sink, place it upside down on a flat surface to prevent the thermal interface material
from being damaged or contaminated.
c. Remove the heat sink.
Figure 4-28. Removing and Installing the Heat Sink