General Information 1-15Power-On PasswordA power-on password denies access to the system by an unauthorized userwhen the system is powered on. When a power-on password is active, thepassword prompt appears on the screen each time the system is powered on.The system unit starts after the proper password is entered.In some cases, you might be required to service a system with an active andunknown power-on password. To clear a password from the system, firstidentify the system password jumper by referring to "System Board Layout” inpage 5-2, then follow these steps.1. Power-off the system unit.2. Unplug the power cable from the electrical outlet.Attention: Do not attempt these steps with the power cord plugged intothe electrical outlet. The power supply maintains +5 Vdc ofauxiliary power when the power switch is powered off. Systemdamage might result if the power cord is not unplugged duringtesting.3. Move the jumper JP4 from pins 1-2 to pins 2-3 to bypass the passwordcheck process. See "System Board Layout" in page 5-2.Note: If you want to skip password checking step for service and are notrequested to clear the password for customer, then here theprocedure is enough.Do not forget to return the password jumper to 1-2(check status)if you want the machine remains the original password setting.4. Plug the power cable, turn on the system, depress F1 while POST to enterBIOS Setup menu.5. Select Advanced Options, then enter Security Options and set Power-onPassword setting to “None” to clear password.6. Save the exit from BIOS Setup.7. Unplug the power cable from the electrical outlet.8. Move the jumper from pins 2-3 back to pins 1-2 to enable the passwordcheck process. See "System Board Layout” on page 5-2.Notes: To reinstall the password, the user must enter a password in theSetup Utility.
