HP Z1

Table 4-9 POST error messages (continued)
Screen message Probable cause Recommended action
1804—A processor feature
and the memory configuration
are incompatible
A processor feature is incompatible
with the memory configuration.
Restore the previous memory configuration.
ERROR: Invalid 1394 GUID
(Invalid electronic serial
number)
No electronic serial number is stored
with the system.
To assign a serial number, open Computer Setup
(F10) Utility, and then select Security >
System IDs.
ERROR: Invalid electronic serial
number (no number)
No electronic serial number is stored
with the system
To assign a serial number, open Computer Select
(F10) Utility, and then select Security >
System IDs.
ERROR: An unsupported
processor is installed. System
halted
Unsupported processor detected. Replace the processor.
Invalid electronic serial number Incorrect serial number registered in
the system.
To assign a serial number, open Computer Select
(F10) Utility, and then select Security >
System IDs.
Processor initialization fails Processor defective. Replace the processor.
92 Chapter 4 Diagnostics and troubleshooting