Dell PowerEdge 2550 - Manual (Page 69)

Upgrading the Microprocessor or Installing a Secondary Microprocessor
To take advantage of future options in speed and functionality, you can add a second processor or replace either the primary or secondary processor.
Each processor and its associated level 2 (L2) cache memory are contained in a Flip Chip Pin Grid Array (FC-PGA) package that is installed in a zero insertion
force (ZIF) socket on the system board. The following subsection describes how to install or replace the microprocessor in either the primary or secondary
processor connector.
Adding or Replacing a Microprocessor
In addition to the ZIF socket for the primary microprocessor on the system board, there is a second ZIF socket to accommodate a secondary microprocessor.
The secondary microprocessor must have the same operating frequency as the primary micro-processor.
The following items are included in the microprocessor upgrade kit:
l A microprocessor chip
l A heat sink
l A retention clip
l A voltage regulator module (VRM), used if adding a second processor
1. Open the system doors (see " Opening the System Doors " in "Checking Inside the System").
2. To remove the retention clip that secures the heat sink to the microprocessor socket, press down firmly on the tab on the retention clip, and then
remove the clip from the heat sink (see Figure 8 -7 ).
Figure 8-7. Retention Clip
NOTICE: The second processor must be of the same type and speed as the first processor.
NOTICE: Dell recommends that only a technically knowledgeable person perform this procedure.
NOTICE: See "Protecting Against Electrostatic Discharge" in the safety instructions in the System Information document.
NOTICE: 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: The microprocessor chip and heat sink can become extremely hot. Be sure that the microprocessor has had sufficient time to cool
before handling.