Installing A Vrm - Dell Precision Workstation 450 User Manual

Back to Contents Page
VRM
Dell Precision™ Workstations 450 and 650 User's Guide
Installing a VRM
Removing a 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
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
computer, see "Microprocessor Airflow
2. Press the securing clips at each end of the VRM connector outward until they snap open.
To locate the VRM connector, see the system board components illustration (for the Dell Precision 450 computer, see
the Dell Precision 650 computer, see
1 VRM
2 securing clips (2)
"System Board Components" or for the Dell Precision 650 computer, see
Shroud").
"System Board Components") or see the system board label inside your computer.
"System Board
"Microprocessor Airflow Shroud" or for the Dell Precision 450
"System Board
Components") or the system
Components" or for