Service Reference Guide 483941-001 D–25
Troubleshooting Without Diagnostics
Restoring the Software
The Windows operating system and software can be restored to the original state that they were
when you purchased the computer by using the Restore Plus! CD. See the documentation
included with the Restore Plus! CD for complete instructions on using this feature.
✎
In the event that you lose power during the initial operating system installation process, use the
Restore Plus! CD to install the operating system.
System gives an
error message
stating that “Error
912 - computer
cover or side panel
has been removed.
Make sure that any
system access was
authorized and
press F1 to
continue”.
Continu-
ous
beep for
5
seconds
The chassis side
cover is open or
would have been
removed after
previous power
on.
1. Make sure that the Chassis side
cover is closed if not fix it as
directed in the assembling guide.
2. Ensure that any system access was
authorized, check all the hardware
ensuring that no hardware has
been changed or removed. Then
enter the BIOS setup by pressing
F10 then select Hardware Monitor
setup and enable the Reset Case
Open Status.
3. Refer to the F10 Utility Guide for
its functionality and any further
issues.
4. For maximum security, be sure to
establish a setup password. The
setup password prevents
unauthorized access to the
Computer Setup utility.
Diagnostic Front Panel LEDs and Audible Codes (Continued)
Activity Beeps Possible Cause Recommended Action
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