Using The Computer Setup (F10) Utility To Reset Cmos - HP Z400 - Workstation Maintenance And Service Manual

WARNING!
the power cord from the wall outlet and let the internal system components cool before you touch them.
CAUTION:
board, 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:
Pressing the Clear CMOS button resets CMOS values to factory defaults and erases customized
information, including 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:
The CMOS button does not clear CMOS if the power cord is connected.
For assistance locating the CMOS button and other components, see
CMOS on page
5. Replace the access panel.
6. Reconnect external devices.
7. Plug in and power on the workstation. The system boots to a F1 prompt and displays a message
that the date/time has changed and that system options have changed.
8. Press F1. The system shuts down for three seconds and then powers back on.
9. Use the F10 (Setup) Utility to reset the date and time.

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
If you do not press
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.
ENWW
To reduce the risk of personal injury from electrical shock and hot surfaces, disconnect
When the workstation is plugged in, the power supply has voltage applied to the system
Before pressing the Clear CMOS button, back up the workstation CMOS settings.
Verify that the AC power cord is disconnected from the power outlet.
186.
Enter to bypass the title screen, if necessary.
F10 while the message is displayed, the workstation must be restarted to access
Clearing and Resetting the
Clearing and Resetting the CMOS 187