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C–8 433611-001 Service Reference Guide, dx7730
POST Error Messages
2205-Interface error
during MEBx execution
MEBx operation
experienced a hardware
error during
communication with ME.
1. Re b o o t t h e c o mp ute r.
2. If the error persists, update to the
latest BIOS version.
3. If the error still persists, replace the
system board.
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
http://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.
Network Server Mode
Active and No
Keyboard Attached
Keyboard failure while
Network Server Mode
enabled.
1. Reconnect keyboard with computer
turned off.
2. Check connector for bent or missing
pins.
3. Ensure that none of the keys are
depressed.
4. Replace keyboard.
Parity Check 2 Parity RAM failure. Run Computer Setup and diagnostic
utilities.
System will not boot
without fan.
CPU fan not installed or
disconnected in VSFF
chassis.
1. Remove the computer cover, press
the power button, and see if the
processor fan spins. If not spinning,
make sure the fan cable is plugged
onto the system board header.
Ensure the heatsink is properly
seated and installed.
2. If the fan is plugged in and the
heatsink is properly seated but the
fan does not spin, then replace the
heatsink-fan assembly.
POST Error Messages (Continued)
Screen Message Probable Cause Recommended Action