Compaq Presario 1800 Presario Selct 1800 Series Maintenance and Service Guide - Page 21

Clearing the Power-on Password - cmos battery

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Maintenance & Service Guide Presario 1800 Series Models: 1805 and 1810 | Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations 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 performing the following steps: 1. Turn off the computer. 2. Disconnect the power cord. 3. Remove the battery pack. 4. Remove the keyboard. 5. Remove the RTC battery for 30 seconds. The password, together with other Setup attributes, will be cleared. 6. Reassemble the computer. 7. Turn on the computer to verify that the power-on password has been cleared. If it has not been cleared, repeat Steps 1 through 7.

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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
|
Home Page
|
Notice
|
Preface
|
Product Description
|
Troubleshooting
Illustrated Parts Catalog
|
Removal & Replacement Procedures
|
Specifications
Pin Assignments
|
Battery Pack Operations
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 performing the
following steps:
1. Turn off the computer.
2. Disconnect the power cord.
3. Remove the battery pack.
4. Remove the keyboard.
5. Remove the
RTC battery for
30 seconds. The password,
together with other Setup
attributes, will be cleared.
6. Reassemble the computer.
7. Turn on the computer to verify
that the power-on password has
been cleared. If it has not been
cleared, repeat Steps 1 through
7.