Compaq Presario 1800T Maintenance And Service Manual page 24

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Troubleshooting
Clearing the Power-on Password
Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
Troubleshooting
Specifications
Clearing the power-on
password requires removing
all Setup attributes that are
programmed in the CMOS.
The RTC battery is located
on the system board directly
forward of the fan.
If the password is not known,
clear it by performing the
following steps:
1. Turn off the computer.
2. Disconnect the power cord.
3. Remove the battery
4. Remove the palmrest cover
with touchpad.
5. Remove the keyboard.
6. Remove the heatspreader.
7. Slide the black switch
toward the front of the
computer to clear CMOS. Hold
the switch in the forward
position for at least 15
seconds to ensure that the
password is cleared. The
switch is located on the back
of the DVD or CD drive in the
middle of the system board.
8. Reassemble the computer.
9. Turn on the computer to
verify that the power-on
password has been cleared. If
it has not been cleared,
repeat Steps 1 through 9.
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