Dell Precision 330 - Manual (Page 102)

102 Installing Upgrades
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NOTE: If your Dell microprocessor upgrade kit includes a replacement
voltage regulator module (VRM), follow the instructions in the documentation
that came with the upgrade kit.
CAUTION: The processor can get very hot during system
operation. Be sure that the processor has had sufficient time to
cool before you touch it.
CAUTION: Before you perform this procedure, see " Safety First—
For You and Your Computer ."
1 Turn off the computer and peripherals, disconnect them from their
electrical outlets, wait at least 5 seconds, and then remove the
computer cover .
2 Rotate the power supply away from the system board.
3 Remove the airflow shroud.
• If your computer is a mini tower chassis, pull back the release tabs
on the top of the shroud and lift the shroud up until the anchor
tabs disengage from the chassis frame. See " Removing the Airflow
Shroud (Mini Tower Chassis) ." Then lift the airflow shroud out of
the chassis.
• If your computer is a desktop chassis, lift the shroud up until the
anchor tabs disengage from the chassis frame. See " Removing the
Airflow Shroud (Desktop Chassis) ." Then lift the airflow shroud
out of the chassis.