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Compaq Professional Workstation AP500 Maintenance and Service Guide
Clearing a Power-On or Setup Password
To disable the Power-On and Setup Password features, or to clear the Power-On and Setup
Passwords if you forget them and cannot access the workstation system or Computer Setup,
follow these steps:
1. Turn off the workstation. Disconnect the power cord from the grounded AC outlet and
from the power connector on the rear of the workstation.
2. Remove the following components:
❏ side access panel
❏ I/O bracket assembly (expansion board assembly)
3. On SW1, move Switch 1 to the ON position.
on
1 2 3 4 5 6
SW1
Figure 5-1. Locating the default SW1 switch
IMPORTANT:
Switch 1 has a default setting of OFF. When the switch is OFF, your system
is password-protected. To re-enable password protection, you
must
return the switch to its
default
position later in this procedure.
4. Reassemble the workstation and reconnect the power cord to the grounded AC outlet and
to the power connector on the rear of the workstation.
IMPORTANT:
You must replace the I/O bracket assembly before you restart the
workstation. If the assembly is not properly seated, the workstation will not start.
5. Restart the workstation.
6. Turn off the workstation once more. Disconnect the power cord from the grounded AC
outlet and from the power connector on the rear of the workstation.
7. Remove the side access panel and the I/O bracket assembly to access SW1 on the system
board.