HP Presario 300 Presario 305 Series Maintenance and Service Guide - Page 59

Clearing the Power-on Password

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Presario 305 Model Before You Begin Removal Sequence Product Description Specifications Troubleshooting Pin Assignments Parts Catalog Battery Operations 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 Multimedia 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. Remember to set the date and Note: time next the time the computer is turned on.

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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.