HP xw9400 Service And Technical Reference Manual page 146

Table 5-18 POST error messages (continued)
Screen Message
1802–CPU0 Not Supported
1803–CPU1 Not Supported
1805–CPU Bypass Board is
Missing
Invalid Electronic Serial
Number
138 Chapter 5 System diagnostics and troubleshooting
Probable Cause
The system board does not support
the processor.
The system board does not support
the processor.
Bypass board not detected on single-
processor system.
Electronic serial number has become
corrupted.
Recommended Action
CAUTION Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
Replace the processor with a compatible one.
CAUTION Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
Replace the processor with a compatible one.
CAUTION Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
Install bypass board or install second processor.
●
Run Computer Setup. Enter the serial number
under Security>System IDs, and save the
changes.
ENWW