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HP Z800 Workstation - Configuring password security and resetting CMOS

This chapter describes how to configure password security and to reset CMOS, and includes these topics:

Preparing to configure passwords

The Computer Setup (F10) Utility enables you to create setup and power-on passwords.
There are three possibilities for setting passwords:
  • Define a setup password only
  • Define a power-on password only
  • Define both
When defining a setup password only, you cannot enter the setup utility without the password.
No password is needed to start from power-on.
When defining a power-on password only, the power-on password is needed to enter F10 Setup or to start from power-on.
When defining both, the setup password is needed to enter F10 setup and can be used to start from power-on.
The power-on password cannot be used to enter the F10 Setup Utility, but it can be used to start from power-on.
One of the passwords will be required to start from power on.
After you create both passwords, you can use the setup password in place of the power-on password as an override to log into the workstation (a useful feature for a network administrator).
note:
You can only clear the passwords with the password jumper. Clearing CMOS does not clear the passwords.
  caution:
Before pressing the Clear CMOS button, back up the workstation CMOS settings.
Pressing the Clear CMOS button resets CMOS values to factory defaults and erases customized information, asset numbers, and special settings.
To back up the CMOS settings, run the Computer Setup (F10) Utility and select Save to Diskette from the File menu.

Resetting the password jumper

Use the following procedure to disable the power-on or setup password features and clear the power-on and setup passwords.
  warning:
To reduce the risk of personal injury from electrical shock and hot surfaces, disconnect the power cord from the wall outlet and let the internal system components to cool before touching.
  caution:
When the workstation is plugged in, the power supply has voltage applied to the , even when the workstation is turned off. Failure to disconnect the power cord can result in damage to the workstation.
  caution:
Static electricity can damage the electronic components of the workstation or optional equipment. Before beginning these procedures, be sure that you are discharged of static electricity by briefly touching a grounded metal object.
  1. Shut down the operating system, power off the workstation and external devices, and disconnect the workstation power cord and external devices from power outlets.
  2. Disconnect the keyboard, monitor, and other external devices that are connected to the workstation.
  3. Remove the access panel.
  4. Locate the password header and jumper.
    The password header is E49.
  5. Verify that the AC power cord is disconnected from the power outlet.
    The password jumper is green so it can be easily identified.
  6. Remove the jumper from pins 1 and 2.
  7. Restart the workstation to the point where you get video.
  8. Shut down the workstation, and then replace the jumper to clear the passwords.
  9. Replace the access panel.
  10. Reconnect the external equipment.
  11. Connect AC power to the workstation, power on the workstation, and then boot to the F10 (Setup) Utility.
  12. To create new passwords, repeat steps 1 through 8, and then create the new passwords using the F10 (Setup) Utility.

Clearing and Resetting the CMOS

This section describes the steps necessary to successfully clear and reset the CMOS. The CMOS of the workstation stores password information and information about the workstation configuration.

Using the CMOS Button

To clear CMOS using the Clear CMOS button, use the following procedure:
  warning:
To reduce the risk of personal injury from electrical shock and hot surfaces, disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.
  caution:
When the workstation is plugged in, the power supply has voltage applied to the , even when the workstation is powered off. Failure to disconnect the power cord can result in damage to the workstation.
Static electricity can damage the electronic components of the workstation or optional equipment. Before beginning these procedures, be sure that you are discharged of static electricity by briefly touching a grounded metal object.
  1. Shut down the operating system, power off the workstation and any external devices, and then disconnect the workstation power cord and external devices from power outlets.
  2. Disconnect the keyboard, monitor, and other external devices that are connected to the workstation.
  3. Remove the access panel.
      caution:
    Before pressing the Clear CMOS button, back up the workstation CMOS settings.
    Pressing the Clear CMOS button resets CMOS values to factory defaults and erases customized information, including passwords, asset numbers, and special settings.
    To back up the CMOS settings, run the Computer Setup (F10) Utility and select Save to Diskette from the File menu.
  4. Locate, press, and hold the CMOS button for five seconds.
    note:
    Verify that the AC power cord is disconnected from the power outlet.
    The CMOS button does not clear CMOS if the power cord is connected.
    For assistance locating the CMOS button and other components, see Clearing and Resetting the CMOS.
  5. Replace the access panel.
  6. Reconnect external devices.
  7. Plug in and power on the workstation.
  8. Reset the workstation passwords and configuration information, such as the system date and time.
    The workstation powers up for three to five seconds, then powers down.

Using the Computer Setup (F10) Utility to Reset CMOS

To reset CMOS using the Computer Setup (F10) Utility:
  1. Access the Computer Setup (F10) Utility menu.
  2. When the Computer Setup message appears in the lower-right corner of the screen, press F10, and then press Enter to bypass the title screen, if necessary.
    If you do not press F10 while the message is displayed, the workstation must be restarted to access this utility.
  3. From the Computer Setup (F10) Utility menu, select File>Default Setup.
    This restores the settings that include boot sequence order and other factory settings. However, it does not force hardware rediscovery.
  4. Choose Restore Factory Settings as Default, and the press F10 to accept.
  5. Select File->Apply Defaults and Exit, and then press F10 to accept.
  6. Reset the workstation passwords and configuration information, such as the system date and time.
    note:
    This step does not clear the passwords.

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