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United States January 2, 2003
Presario 1600 Series
Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143,
1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150
Before You Begin Product Description Parts Catalog
Specifications Battery Operations Pin Assignments
Removal Sequence Troubleshooting MSG Index
Preliminary
Steps
Clearing the
Power-On
Password
Power-On Self
Test (POST)
Compaq
Diagnostics
Diagnostic
Error Codes
Troubleshooting
Without
Diagnostics
Solving Minor
Problems
Contacting
Compaq
Support
Troubleshooting
Clearing the Power-On Password
NOTE:
Clearing the power-on password also
removes all Setup attributes that are
programmed in the CMOS.
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 pack.
4. Remove the
Palmrest Cover with TouchPad.
5. Remove the
keyboard.
6. Remove the
Heatspreader.
7. Remove the RTC
battery for about
30 seconds to
ensure that the
password is
cleared. (The RTC
battery is located
underneath the
heatspreader and
next to the
CD/DVD
connector.) Not
shown in
illustration.
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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