HP Workstation xw4100, Сервисное и техническое руководство

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H–2 hp workstation xw4100 service and technical reference guide
additional password security and resetting CMOS
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CAUTION: Static electricity can damage the electronic components of the workstation or optional
equipment. Before beginning these procedures, ensure that you are discharged of static electricity by
briefly touching a grounded metal object.
3. Remove the hood cover.
4. Locate the header and jumper.
NOTE:
The password jumper is green so that it can be easily identified. For assistance locating the
password jumper and other system board components, see the “system board components”
section in Chapter 1.
5. Remove the jumper from pins 1 and 2. Place the jumper on either pin 1 or 2, but not both, so
it does not get lost.
6. Replace the hood cover.
7. Reconnect the external equipment.
8. Plug in the workstation and turn on the power. Allow the operating system to start. This
clears the current passwords and disables the password features.
9. To establish new passwords, repeat steps 1 through 4, replace the password jumper on pins
1 and 2, then repeat steps 6 through 8. Establish the new passwords in Computer Setup.
clearing and resetting the CMOS
The CMOS of the workstation stores password information and information about the
workstation configuration. This section describes the steps to successfully clear and reset the
CMOS.
using the CMOS button
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.
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CAUTION: Static electricity can damage the electronic components of the workstation or optional
equipment. Before beginning these procedures, ensure that you are discharged of static electricity by
briefly touching a grounded metal object.