Troubleshooting Guide

A–12 www.hp.com Troubleshooting Guide
POST Error Messages
1801-Microcode
Patch Error
Processor is not
supported by
ROM BIOS.
1. Upgrade BIOS to proper version.
2. Change the processor.
1998-Master Boot
Record has
been Lost
The previously saved
copy of the MBR has
been corrupted.
Run Computer Setup and save the MBR of
the current bootable disk.
1999-Master Boot
Record has
Changed
The current MBR does not
match the previously
saved copy of the MBR.
Use extreme caution. The MBR may have
been updated due to normal disk
maintenance activities (disk manager,
fdisk, or format).
Ä
Replacing the previously saved MBR
in such situations can cause data
loss.
If you are certain the MBR change is
unintentional and undesired (e.g. due to a
virus), then run Computer Setup and
restore the previously saved MBR copy.
Otherwise, run Computer Setup and either
disable MBR security or save the MBR of
the current bootable disk.
2000-Master Boot
Record Hard Drive
has Changed
The current bootable
hard drive is not the
same as the one that was
present when MBR
Security was enabled.
Run Computer Setup and either disable
MBR security or save the MBR of the
current bootable disk.
Invalid Electronic
Serial Number
Electronic serial number
has become corrupted.
1. Run Computer Setup. If Setup already
has data in the field or will not allow
the serial number to be entered,
download from www.hp.com and run
SP5572.EXE (SNZERO.EXE).
2. Run Computer Setup and try to enter
serial number under Security, System
ID, then save changes.
Numeric Codes and Text Messages (Continued)
Code/Message Probable Cause Recommended Action