HP Xw8400 - Workstation - 4 GB RAM User Manual page 142

Table 5-18 POST error messages (continued)
Screen Message
1801–Microcode Update Error. Missing or Invalid Processor
1802–Processor Not
Supported.
Invalid Electronic Serial
Number.
ECC Multiple Bit Error Detected
in Memory Module.
Parity Check 2.
132 Chapter 5 System diagnostics and troubleshooting
Probable Cause
Microcode Update. Contact HP for a
new Microcode Update to support the
new Processor Stepping.
The system board does not support
the processor.
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.
Recommended Action
Upgrade BIOS to proper version.
Replace the processor with a compatible one.
1. Run Computer Setup. If Setup already has data in
the field or will not allow the serial number to be
entered, download SP5572.EXE (SNZERO.EXE)
from http://www.hp.com
workstation.
2. Run Computer Setup. Try to enter the serial
number under Security>System ID, and save the
changes.
Replace the memory module.
Run Computer Setup and Diagnostic utilities.
and run it on your
ENWW