Service manual

Chapter 5 Troubleshooting
51
6. Boot the HP NetServer Navigator CD-ROM and run the Error Logging utility.
If the system powers up and immediately shuts down, CMOS might be corrupted. You need to
clear CMOS and reconfigure your system. To clear CMOS, set the system switch to clear.
7. Check the error log and determine which errors could have shut down the system.
If you are having voltage fluctuation problems, go to Power Problems.
NOTE Temperature problems can also be caused by a fluctuating power supply.
Monitor the system to ensure you are not experiencing further temperature and voltage problems.
The NetServer stops working (hangs)
If the server stops working, do the following:
1. Review the Troubleshooting Checklist before you continue.
2. If the system hangs, power the system off and on as it is a more complete reset rather than
using Ctrl-Alt-Del.
3. If the POST finds an error, check the connection and/or replace the faulty part.
4. If the problem persists, remove and replace the processor board.
5. Once a problem has been found with a part, verify that it is the problem by duplicating the error.
The NetServer powers-off then powers on again by itself
The NetServer has an Automatic Server Restart (ASR) feature which is set to enabled. The ASR feature is
used with the NetServer Assistant product. When certain conditions occur the NetServer shuts down all
power, then twenty seconds later restarts the NetServer. ASR is enabled as the default. You can disable
this feature if you want. To read about the effects of automatic server restart, see the NetServer Assistant
product. The conditions that shut down and restart the NetServer are operating system problems and affect
the system timers.
The system does not start (boot)
Verify the DIMMs are installed on the system board. If the above are fine, do the following:
1. Review the Troubleshooting Checklist before you continue.
2. If memory problems are being experienced:
A. Power the system off and on as it is a complete reset instead of using Ctrl Alt Del.
B. If the POST finds a problem, check the error against the Error Messages and correct the
problem.
3. Verify all DIMMs are installed correctly.
A. Verify all DIMMs comply with the DIMM guidelines.
A POST error will appear if you have a non-HP DIMMs installed.
B. Reseat the DIMMs on the system board.
C. Remove all the DIMMs and install a known good DIMMs on the system board, and reboot.
If you still receive an error, replace the DIMMs and go to Step D.
If the error goes away, add another DIMM to the system board and reboot again. Continue
this process until you have installed all DIMMs or you experience a failure.