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POST Error Messages
Screen Message
1998-Master Boot
Record has been
changed.
2000-Master Boot
Record Hard Drive has
Changed.
Invalid Electronic Serial
Number.
ECC Multiple Bit Error
Detected in Memory
Module.
Parity Check 2.
Service Reference Guide, d500
Probable Cause
The current MBR does not
match the previously
saved copy of the MBR.
The current bootable hard
drive is not the same as
the one that was present
when MBR security was
enabled.
Electronic serial number
has become corrupted.
Chipset has detected
more than one bad bit in
a 64-bit quadword of the
memory array.
Parity RAM failure.
336492-003
Recommended Action
Use extreme caution, The MBR may have
been updated due to normal disk
maintenance activities (disk manager,
fdisk, or format). Replacing the
previously saved MBR in such situations
can cause data loss. If certain that the
MBR change is unintentional and
undesired (e.g. due to a virus), 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.
Run Computer Setup and either disable
MBR security or save the MBR of the
current bootable disk.
Run Computer Setup. If Setup already
has data in the field or will not allow the
serial number to be entered, download
from http://www.hp.com and run
SP5572.EXE (SNZERO.EXE).
Run Computer Setup and try to enter
serial number under Security, System ID,
then save changes.
Replace the memory module.
Run Computer Setup and Diagnostic
utilities.
C–7
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