Dell Dimension XPS 50, Reference Manual

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support.dell.com System Setup Program B-25
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If you forget your user or setup password, you will be unable to operate your system
or change settings in the system setup program, respectively, until you disable the
existing password(s). Disabling the password(s) involves removing the computer
cover and changing a jumper setting (twice) on the system board.
NOTE: You disable both user and setup passwords at the same time.
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To disable a forgotten password, perform the following steps:
1. Remove the computer cover and support beam as described in “Removing and
Replacing the Computer Cover and Support Beam” in Chapter 2.
2. Refer to Figure 2-5 and Table 2-2 for the location and settings of the configuration
jumper (J8A1) on the system board.
3. Move the jumper plug to the Maintenance mode setting (pins 2 and 3 jumpered).
4. Replace the computer cover and support beam; reconnect your computer to an
electrical outlet and turn it on.
The system boots directly into the Maintenance screen of the system setup
program.
5. At the Maintenance screen, highlight Clear All Passwords, press <Enter>, and
then click Yes to erase all existing passwords.
6. Press <F10> to save your changes and exit the system setup program.
7. Turn off the system, and remove the computer cover and support beam.
8. Move the jumper plug back to the Normal mode setting (pins 1 and 2 jumpered).
9. Replace the computer cover and support beam; reconnect the computer and
devices to electrical outlets and turn them on.
10. Assign a new user and/or setup password on the Security screen of the system
setup program.
For information on assigning a new user and/or setup password, refer to Table B-11.