To clear a lost BIOS password (user or supervisor password), you need to short the clear password hardware gap (G1501) located on the mainboard. G1501 Hardware Gap 1. Shut down the computer and disconnect the AC adapter, battery and all other peripherals from the computer. 2. Perform the “Removing the Back Cover” procedure described on page 3-10. 3. Perform the “Removing the Memory Module” procedure described on page 3-11. 4. Locate the G1501 gap. 5. Use an electrical conductivity tool to short the two contacts on the hardware gap together. 6. While resting the tool on the two contacts, plug one end of the AC adapter into the DC-In jack and plug one end to an electrical outlet. 7. Press the button to turn on the computer. 8. After the BIOS POST, remove the tool from the hardware gap. 9. Perform the “Replacing the Memory Module”. 10. Perform the “Replacing the Back Cover” . 11. Perform the “Replacing the Battery Pack”. 12. Turn on the computer and press F2 during bootup to access the Setup Utility. If no password prompt appears, the BIOS passwords have been cleared. If the prompt appears, repeat steps 2-11 until the BIOS passwords have been cleared. 13. Press F9 to load the system defaults. 14. Press F10 to save the changes you made and close the Setup Utility.