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Compaq Presario Series Maintenance and Service Guide
United States December 9, 2002
Presario 305 Model
Before You Begin Specifications Parts Catalog
Removal Sequence Troubleshooting Battery Operations
Product Description Pin Assignments
Index
Clearing the Power-on Password
Clearing the power-on
password requires
removing all Setup
attributes that are
programmed in the
CMOS.
If the password is not
known, clear it by
removing the RTC
battery (located on the
system board) as
follows:
1. Turn off the
computer.
2. Disconnect the AC
Adapter.
3.
Remove the Multi-
media Expansion
Unit.
4.
Remove the
battery pack.
5. Disconnect and
remove the RTC
battery.
6. Wait for five minutes.
7. Reconnect the RTC
battery.
8. Reconnect the AC
Adapter. Do not
reinstall the battery
pack yet.
9. Turn on the
computer to verify that
the power-on password
has been cleared. If it
has not been cleared,
repeat all steps above.
Note:
Remember
to set the
date and
time the
next time
the
computer is
turned on.
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