Service Manual

Clearing forgotten passwords
WARNING: Before working inside your computer, read the safety information that shipped with your computer and
follow the steps in Before working inside your computer. After working inside your computer, follow the instructions
in
After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at
www.dell.com/regulatory_compliance.
Procedure
1 Locate the password jumper (P215) on the system board.
For information on the location of the Password jumper, see System-board components.
2 Remove the jumper plug from pins 215.
3 Follow the procedure from step 8 to step 9 in "Replacing the power-supply unit".
4 Replace the left-side cover.
5 Turn on your computer and wait until the operating system is completely loaded.
6 Shut down your computer.
7 Remove the left-side cover.
8 Follow the procedure from step 1 to step 3 in "Removing the power-supply unit".
9 Replace the jumper plug on pins 215.
Flashing the BIOS
You may need to ash (update) the BIOS when an update is available or when you replace the system board.
Follow these steps to ash the BIOS:
1 Turn on your computer.
2 Go to www.dell.com/support.
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