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Upgrading the Microprocessor or Installing a
Secondary Microprocessor
To take advantage of future options in speed and functionality, you can add secondary
microprocessors or replace either the primary or secondary microprocessors in your Dell ™
system.
NOTICE: The secondary microprocessors must be of the same type and speed as the primary
microprocessor.
Each microprocessor and its associated level 2 (L2) cache memory are contained in a Pin
Grid Array (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 microprocessor connectors.
Adding or Replacing a Microprocessor
In addition to the ZIF socket for the primary microprocessor on the system board, there
may be other ZIF sockets to accommodate secondary microprocessors. The secondary
microprocessors must have the same operating frequency as the primary microprocessor.
The following items are included in the microprocessor upgrade kit:
• A microprocessor chip
• A heat sink
• A retention clip
• A voltage regulator module (VRM), used if adding a second processor
Turn off the system, including any peripherals, and disconnect the power cable from
1
the electrical outlet.
Open the system doors. For instructions, see "Checking Inside the System" in your
2
system's Installation and Troubleshooting Guide.
NOTICE: See "Protecting Against Electrostatic Discharge" in the safety instructions in the
System Information document.
If you are upgrading an existing microprocessor, remove the heat sink retention clip
3
that secures the heat sink to the microprocessor, press down firmly on the tab on the
retention clip, and then remove the clip from the heat sink.
Refer to your system information label on the system cover for heat sink retention clip
information.
M ic ro p r o ce s so r Up g r a d e I n s ta ll a tio n Gu i d e
1-1
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