Clearing The Cmos And Passwords - HP Tc2110 - Server - 128 MB RAM Maintenance Manual

Chapter 4
Table 4-1 describes typical POST text errors and the corrective action you may take to remedy the problem.
Table 4-1. POST Error Messages
Message
Operating system not found
Keyboard error
Mouse error
If no message appears (screen
is blank)
If a configuration error occurs
System CMOS checksum bad

Clearing the CMOS and Passwords

You may need to clear the BIOS configuration (CMOS) if the configuration has been corrupted, or if
incorrect settings made in the Setup Utility have caused error messages to be unreadable.
1. Power down the Server.
Refer to Chapter 1, "Controls and Indicators" for instructions.
2. Disconnect the power cord and any external cables connected to the Server.
If necessary, label each one to expedite re-assembly.
3. Remove the left side cover.
4. To clear the CMOS memory, set configuration switch 5 to the ON position.
To clear passwords, set configuration switch 6 to the ON position.
See Figures 4-1 and 4-2.
5. Replace the left side cover and reconnect only the power cord.
6. Power up the Server.
Corrective Action
· Verify that the desired boot drive has power and its SCSI cable is
connected.
· Verify that the SCSI cable is securely plugged into the SCSI
connector on the system board.
· Verify that the boot device is enabled in the Setup Utility under the
Security menu.
· Verify that the boot device has an operating system installed.
If the problem persists, contact your HP support organization.
Verify that the keyboard is connected to the correct connector (not the
mouse connector) at the rear of the server.
If the problem persists, replace the keyboard or contact your HP support
organization.
Verify the mouse is connected to the correct connector (not the keyboard
connector) at the rear of the server.
If the problem persists, replace the mouse or contact your HP support
organization.
· If no text or messages appear, listen for the beep codes. Refer to the
Service manual on the HP Server Online Documentation CD-ROM.
· If no message appears but the server stops after POST, verify that
the DIMMs are correctly installed.
If a server configuration error is reported during the startup routine, clear
the CMOS memory as described in Chapter 6, "Troubleshooting" and
restart the server.
· Press F2 to run Setup.
· Change settings as required.
· Choose the Exit option, selecting Save Changes and Exit to save the
new settings.
The server should reboot.
Diagnostics
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