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P
RESARIO
N
OTEBOOK
M
AINTENANCE
AND
S
ERVICE
G
UIDE
1800 S
ERIES
T
ROUBLESHOOTING
3
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Clearing the Power-On Password
Ä
CAUTION: 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 the 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 Removal 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.