Compaq 1825, 1800T specifications Troubleshooting, Clearing the Power-on Password

Maintenance & Service Guide

Presario 1800 Series

Models: 1825 and 1800T

Home Page Notice Preface Product Description

Troubleshooting

Illustrated Parts Catalog Removal & Replacement Procedures

Specifications

Pin Assignments Battery Pack Operations

Troubleshooting

Clearing the Power-on Password

Clearing the power-on password requires removing all Setup attributes that are programmed in the CMOS.

The RTC battery is located on the system board directly forward of the fan.

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. Slide the black switch toward the front of the computer to clear CMOS. Hold the switch in the forward position for at least 15 seconds to ensure that the password is cleared. The switch is located on the back of the DVD or CD drive in the middle of the system board.

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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