Dell OptiPlex GX300 User Manual page 72

2. Remove the jumper plug from the PSWD jumper to disable the password feature.
Refer to "System Board Jumpers" for jumper information and to
jumper (labeled "PSWD") on the system board.
3. Replace the computer cover.
4. Reconnect your computer and peripherals to an electrical outlet, and then turn them on.
Booting your system with the PSWD jumper plug removed erases the existing password(s).
5. Enter System Setup, and verify that the password is disabled. Proceed to step 6 if you want to assign a new password.
NOTE: Before you assign a new system and/or setup password, you must replace the PSWD jumper plug.
CAUTION: Before you remove the computer cover, see
6. Remove the computer cover according to the instructions in
"Removing and Replacing the Computer
7. Replace the PSWD jumper plug.
8. Replace the computer cover, and then reconnect the computer and peripherals to an electrical outlet and turn them on.
Booting your system with the PSWD jumper installed reenables the password feature. When you enter System Setup, both password
options appear as Not Enabled, meaning that the password feature is enabled but that no password has been assigned.
9. Assign a new system and/or setup password.
To assign a new system password, see
Password."
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Figure 4
"Safety First—For You and Your
Cover."
"Assigning a System Password." To assign a new setup password, see "Assigning a Setup
in "Inside Your Computer" for the location of the password
Computer."