PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1800 SERIES TROUBLESHOOTING 3
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390

Clearing the Power-On Password

ÄCAUTION: Clearing the Power-on password also removes all setup attributes that
are programmed in the CMOS.
If you do not know the Power-on password, clear it by performing the following steps:
1. Turn off the Notebook.
2. Disconnect the power cord.
3. Remove the battery.
4. Remove the Palmrest cover
.
5. Remove the keyboard.
6. Remove th e heat sink.
7. Locate the CMOS switch to the right of the CD/DVD drive on the system board.
8. Slide the black switch to the right 1 holding it in this position for at least 15 seconds
to ensure that the password is cleared.
9. Reassemble the Notebook (refer to the Remova l and Replacement chapter later in
this MSG).
10. Turn on the Notebook to verify that the Power-on password has been cleared. If it has
not been cleared, repeat this procedure.