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Maintenance & Service Guide
Presario 305 Model

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Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications
Pin Assignments
| Battery Pack Operations


Clearing the Power-on Password

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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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