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Installing System Components 73
on the system board (see Figure 6-2 for the connector location). If your expansion card has two interface
connectors, connect the data cable to the primary controller interface connector. See "Hard Drives" on
page 48 for information about connecting hard drives.
Microprocessor
You can upgrade the system processor(s) to take advantage of future options in speed and functionality,
or add a second processor. Each processor and its associated internal cache memory are contained in a
land grid array (LGA) package that is installed in a ZIF socket on the system board.
Removing the Processor
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the
components inside the system. See your Product Information Guide for complete information about safety
precautions, working inside the computer, and protecting against electrostatic discharge.
1
Prior to upgrading your system, download the latest system BIOS version on
support.dell.com
.
2
Turn off the system, including any attached peripherals, and disconnect the system from the electrical
outlet.
3 Open the system. See
"Opening the System" on page 43
.
NOTICE: When you remove the heat sink, the possibility exists that the processor might adhere to the heat sink
and be removed from the socket. It is recommended that you remove the heat sink while the processor is still
warm.
NOTICE: Never remove the heat sink from a processor unless you intend to remove the processor. The heat sink is
necessary to maintain proper thermal conditions.
4
Rotate the hard-drive carrier out of the system. See "Rotating the Hard-Drive Carrier Out of the
System" on page 44.
5
Rotate the processor access door to its open position. See Figure 3-21.
NOTE: To loosen the four captive screws on the sides of the heat-sink assembly, you need a Phillips
screwdriver with at least a 6-inch blade.
6
Loosen but do not remove the four screws on the sides of the heat-sink assembly. Leave the screws in
place to retain the springs under the screws.
7
Wait 30 seconds for the heat sink to loosen from the processor.
8
Lift to remove the heat-sink assembly from the system.
9
If the heat sink has not separated from the processor, carefully rotate the heat sink in a clockwise, then
counterclockwise, direction until it releases from the processor. Do not pry the heat sink off of the
processor.
10 Lift the heat sink off of the processor and set the heat sink
aside.
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