HP X Class 500/550MHz Reference Manual page 132

Tests and Error Messages
Error Message Summary
The following table summarizes the most significant of the problems that can be reported.
Table 5-6. Summary of the Most Significant Problems That Can Be Reported
Message
Operating system not found
Missing operating system
Resource Allocation Conflict -PCI
device 0079 on system board
Video Plug and Play interrupted or
failed. Re-enable in Setup and try
again
System CMOS checksum bad - run
Setup
No message, system "hangs"
Other
4 - 4 - 2 - 4
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Explanation or Suggestions for Corrective Action
Check whether the disk, HDD, FDD or CD-ROM disk
drive is connected.
If it is connected, check that it is detected by POST.
Check that your boot device is enabled on the Setup
Security menu.
If the problem persists, check that the boot device
contains the operating system.
If you have configured HDD user parameters, check
that they are correct. Otherwise, use HDD type "Auto"
parameters.
Clear CMOS.
You may have powered your computer Off/On too
quickly and the computer turned off Video plug and
play as a protection.
CMOS contents have changed between 2 power-on
sessions. Run Setup for configuration.
Check that the main memory modules are correctly
set in their sockets.
An error message may be displayed and the computer
may "hang" for 20 seconds and then beep. The POST
is probably checking for a mass storage device which
it cannot find and the computer is in Time-out Mode.
After Time-out, run Setup to check the configuration.
Switch 9 is not correctly set or flash is corrupted. The
BIOS update crisis recovery procedure is to be used.
Chapter 5