HP Workstation xw4100, Сервисное и техническое руководство

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hp workstation xw4100 service and technical reference guide H–1
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additional password security and
resetting CMOS
This workstation supports security password features, which can be established through the
Computer Setup Utilities menu. These features are:
■ setup password
■ power-on password
When you establish only a setup password, the power-on password is required to access
Computer Setup and any other information on the workstation. When you establish both
passwords, only the setup password will give you access to Computer Setup.
When both passwords are set, the setup password can also be used in place of the power-on
password as an override to log in to the workstation. This is a useful feature for a network
administrator.
If you forget the password for the computer, there are two method for clearing that password so
you can gain access to the information on the workstation.
■
resetting the password jumper
■
using the Clear CMOS button
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CAUTION: Pushing the CMOS button resets CMOS values to factory defaults and erases any
customized information including passwords, asset numbers, and special settings. It is important to back
up the workstation CMOS settings before resetting them in case they are needed later. To back up the
CMOS settings, use Computer Setup and run the Save to Diskette option from the File menu.
resetting the password jumper
To disable the power-on or setup password features, or clear the power-on or setup passwords,
complete the following steps:
1. Shut down the operating system and then turn off the workstation and any external devices.
Disconnect the power cord of the workstation and any external devices from the power
outlets.
2. Disconnect the keyboard, monitor, and any other external devices that are connected to the
workstation.
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WARNING: To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to
disconnect the power cord from the wall outlet and allow the internal system components to cool before
touching.
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CAUTION: When the workstation is plugged in, the power supply always has voltage applied to the
system board even when the unit is turned off. Failure to disconnect the power cord can result in damage
to the system.