Clearing And Resetting The Cmos; Using The Cmos Button; Using The Computer Setup Utility To Reset Cmos - HP Xw9400 - Workstation - 16 GB RAM Reference Manual

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 power off the workstation and any external devices.
Disconnect the power cord of the workstation and any external devices from the power outlets.
WARNING!
to disconnect the power cord from the wall outlet and allow the internal system components to cool
before touching.
CAUTION:
system board–even when the unit is turned off. Failure to disconnect the power cord can result in
damage to the system.
CAUTION:
equipment. Before beginning these procedures, be sure that you are discharged of static electricity
by briefly touching a grounded metal object.
2. Remove the access panel.
3. Locate and press the clear CMOS button.
CAUTION:
some customized information. 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 the Replicated
Setup option in the Computer Setup Utility menu.
For assistance locating the clear CMOS button and other system board components, refer to the
service label on the workstation access panel.
NOTE:
The clear CMOS button does not clear the workstation passwords.
4. Replace the access panel.
5. Plug in and power on the workstation.
NOTE:

Using the Computer Setup Utility to reset CMOS

To reset CMOS to factory defaults:
1. Enter the Computer Setup Utility menu by pressing
the screen during bootup. The word Setup displays in the lower right corner of the screen. If a
setup password has been set, a password prompt displays on the screen.
NOTE:
powered off, then on again, to access the utility.
2. Select File>Default Setup>Restore Factory Settings as Default, and press F10. Press any key
at the prompt that then displays.
NOTE:
3. Select File>Apply Defaults and Exit. Press
190 Appendix G Appendix G— Additional password security and resetting CMOS
To reduce the risk of personal injury from electrical shock and hot surfaces, be sure
When the workstation is plugged in, the power supply always applies voltage to the
Static electricity can damage the electronic components of the workstation or optional
Pushing the clear CMOS button resets CMOS values to factory defaults and erases
AC power does not need to be disconnected for the clear CMOS button to work.
Any special configurations will have to be reset.
If you do not press the F10 key while the message is displayed, the workstation must be
This procedure does not reset the date and time.
F10 when the F10=Setup prompt displays on
F10 at the prompt that then displays.
ENWW