Dell PowerEdge 1500SC - Manual (Page 40)

Each microprocessor and its associated cache memory are contained in a PGA package that is installed in a ZIF socket on the system board. A second ZIF
socket accommodates a secondary microprocessor. The secondary micro-processor must have the same operating frequency as the primary micro-processor.
For example, if the system has a 1.13-GHz primary microprocessor, your secondary microprocessor must also be a 1.13-GHz microprocessor.
In a single microprocessor system, the microprocessor must be installed in the PROC_1 ZIF socket.
The following items are included in the microprocessor upgrade kit:
l A microprocessor
l A heat sink
l A securing clip
l A VRM, if adding a second microprocessor
Adding or Replacing a Microprocessor
1. Turn off the system, including any attached peripherals, and disconnect the AC power from the electrical outlet.
2. Remove the right-side cover (see " Removing the Side Covers " in "Troubleshooting Your System").
3. Remove the microprocessor and memory module cooling shrouds (see " Removing the Microprocessor and Memory Module Cooling Shrouds ").
4. Remove the VRM if adding or replacing a microprocessor in the CPU_2 socket.
5. Push on the heat-sink securing clip handle to release the clip from the retaining tabs on the ZIF socket (see Figure 6 -11 ).
6. Remove the securing clip.
Figure 6-11. Heat-Sink Securing Clips
7. Remove the heat sink.
8. Pull the socket release lever straight up until the microprocessor is released (see Figure 6 -12 ).
9. Lift the microprocessor out of the socket and leave the release lever up so that the socket is ready for the new microprocessor.
Figure 6-12. Removing the Microprocessor
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions in your System Information document.
NOTE: The securing clip is spring-loaded and could quickly disengage when removing.
WARNING: The microprocessor and heat sink can become extremely hot. Ensure that the microprocessor has had sufficient time to cool before
handling.
CAUTION: Never remove the heat sink from a microprocessor unless you intend to remove the microprocessor. The heat sink is necessary to
maintain proper thermal conditions.
CAUTION: Be careful not to bend any of the pins when removing the microprocessor. Bending the pins can permanently damage the
microprocessor.