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VRM
NOTICE: A VRM must be installed to operate dual microprocessors. To
locate the VRM connector, see the system board components illustration (for
the Dell Precision 450 computer, see "System Board Components" or for the
Dell Precision 650 computer, see "System Board Components") or the system
board label inside your computer.
1
Shut down the computer through the Start menu.
2 Ensure that your computer and attached devices are turned off. If your
computer and attached devices did not automatically turn off when
you shut down your computer, turn them off now.
NOTICE: To disconnect a network cable, first unplug the cable from your
computer and then unplug it from the network wall jack.
3 Disconnect any telephone or telecommunication lines from the
computer.
4 Disconnect your computer and all attached devices from electrical
outlets, and then press the power button to ground the system board.
5 If you have installed a padlock through the padlock ring on the back
panel, remove the padlock.
CAUTION: To guard against electrical shock, always unplug your
computer from the electrical outlet before opening the cover.
NOTICE: Before touching anything inside your computer, ground yourself by
touching an unpainted metal surface, such as the metal at the back of the
computer. While you work, periodically touch an unpainted metal surface to
dissipate any static electricity that could harm internal components.
6
Open the computer cover.
Installing a VRM
CAUTION: Before you perform this procedure, follow the safety
instructions in the
System Information Guide
.
1 Remove the microprocessor airflow shroud (for the Dell Precision 650
computer, see "Microprocessor Airflow Shroud" or for the Dell
Precision 450 computer, see "").
2 Press the securing clips at each end of the VRM connector outward
until they snap open.
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