Chapter 5
Troubleshooting
67
Memory Problems
The memory modules are DIMMs.
NOTE
If the
POST
(displayed at power-on time) indicates a defective memory module,
replace it.
1. Review the
Troubleshooting Checklist
before you continue.
2. If memory problems are being experienced, power the Netserver off and on. This performs a
"cold" restart, rather than a "warm" restart (as it does when you press
Ctrl+Alt+Del
).
3. Check the BIOS event log (available on certain Netserver models) for messages indicating
memory errors.
4. Run the
DiagTools
memory test.
5. Reseat the memory modules.
6. To check that the modules are installed and configured correctly:
a. Run the
Setup Utility
and check the configuration.
b. Install one known good DIMM. If you still receive an error, replace the system board.
If the error goes away, add another DIMM and reboot again. Continue this process until you
have installed all DIMMs or you experience a failure.
Replace the defective DIMM.
7. Once a suspect part has been found, verify the cause of the problem by reinstalling the part and
attempting to duplicate the error. Also install it in another memory socket to confirm whether or
not the socket is defective.
Network Interface Card Problems
See the appropriate Network Interface Card documentation.
Symptom:
•
If the adapter can't connect to the network
1. Make sure the cabling is installed properly.
2. Most hub and switch connections require straight-through cable; consult their documentation. If
you're directly connecting two computers (with no hub or other device), use a “crossover” cable.
3. Verify there are no resource conflicts between the NIC and any other accessories in the
Netserver. Check the
Setup Utility
.
4. Check the LEDs on the adapter at the back of the computer to see if any show activity. No lit
LEDs probably indicate a bad network cable, hub connection or other network error.
5. Ensure you're using the latest and correct drivers. Verify the drivers are intended for this
adapter.
6. Ensure the port on the switch or hub (or other device) has the same duplex setting as the
adapter.
