Power-On Password - IBM Aptiva 2170 Hardware Maintenance Service Manual

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.
General Information 11