General Information     11
Power-On Password
A power-on password denies access to the system by an unauthorized user 
when the system is powered on. When a power-on password is active, the 
password prompt appears on the screen each time the system is powered on. 
The system starts after the proper password is entered. See “Power-on 
Password” on page 22 for more information about how to change, remove and 
set password in BIOS Setup. 
In some cases, you might be required to service a system with an active and 
unknown power-on password. To clear a password from the system, follow 
these steps.
1. Turn off system unit. 
2. Unplug power cable from the electrical outlet. 
WARNING: 
 Do not attempt these steps with the power cord plugged into the 
electrical outlet. The power supply maintains +5 Vdc of standby power 
when the power cord is plugged. System damage might result if the 
power cord is not unplugged during jumper setting. 
Machine Type 2170: 
Set JP2 to 1-2 position to bypass password check 
process. See “Machine Type 2170 System Board Jumpers and Connectors” on 
page 147.
Machine Type 2171 and 2172:
 Set switch 5 of SW1 to the ON position to 
bypass password check process. See “Machine Type 2171 and 2172 System 
Board Jumpers and Connectors” on page 150. 
3. Plug power cable, turn on the system, and press F1 during POST to enter 
BIOS Setup menu. 
4. Select “Advanced Options”, then enter “Security Options” and set “Power 
On Password” setting to “None” to clear password.
5. Save and exit from BIOS Setup.
6. Turn off the system, unplug power cable from electrical outlet.
Machine Type 2170: 
Set JP2 to the 2-3 position to enable password check 
process. See “Machine Type 2170 System Board Jumpers and Connectors” on 
page 147.
Machine Type 2171 and 2172:
 Set switch 5 of SW1 to the OFF position to 
enable password check process. See “Machine Type 2171 and 2172 System 
Board Jumpers and Connectors” on page 150.
IMPORTANT:
 To reinstall the password, the user must enter a password in the 
Setup Utility.