Troubleshooting Guide

Troubleshooting Guide www.hp.com A–11
POST Error Messages
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. Open hood, press the Power button,
and see if the processor fan spins. If
the processor fan is not spinning,
make sure the fan's 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.
Numeric Codes and Text Messages (Continued)
Code/Message Probable Cause Recommended Action