COMPAQ PRESARIO 1800 - 1800T SERIES - HOW TO CLEAR POWER-ON PASSWORD

Presario 1800/1800T Series (Models: XL280, XL380, XL381, and XL390) Keyboard Removal

PASSWORD RESET

If you do not know the Power-on password, clear it by performing the following steps:

1. Turn off the Notebook.

2. Disconnect the power cord.

3. Remove the battery.

4. Remove the Palm rest cover.

5. Remove the keyboard.

6. Remove the heat sink.

7. Locate the CMOS switch to the right of the CD/DVD drive on the system board.

8. Slide the black switch to the right {1} holding it in this position for at least 15 seconds to ensure that the password is cleared.

Reassemble the Notebook.

Turn on the Notebook to verify that the Power-on password has been cleared. If it has not been cleared, repeat this procedure.

KEYBOARD REMOVAL

Palm rest Cover with Touch-pad

It is not necessary to remove the display panel assembly to access the interior components of the Notebook.

To remove the Palm rest cover with Touch pad, complete the following steps:

1. Prepare the Notebook for dis-assembly.

2. Close the display and turn the Notebook upside down.

3. Remove four screws from the bottom of the Notebook, and one from the battery compartment.

4. Turn the Notebook right side up and open the display.

5. Lift up the front end of the Palm rest cover.  Note: It may be necessary to apply pressure on the sides of the Palm rest cover to release it from the chassis.

6. Disconnect the flex cable from the ZIF [Zero Insertion Force] Connection the Display module.

Gently lift the front of the keyboard, disconnect the flex cable from the ZIF Connector on the system board, and remove the keyboard.