Troubleshooting A Serial I/O Device; Troubleshooting A Nic - Dell PowerEdge C6220 II Owner's Manual

If the problem persists, replace the device.
If all troubleshooting fails, see "Getting Help" on page 343.

Troubleshooting a Serial I/O Device

1 Turn off the system and any peripheral devices connected to the serial
port.
2
Swap the serial interface cable with another working cable, and turn on
the system and the serial device.
If the problem is resolved, replace the interface cable.
3
Turn off the system and the serial device, and swap the device with a
comparable device.
4 Turn on the system and the serial device.
If the problem is resolved, replace the serial device.
If the problem persists, see "Getting Help" on page 343.

Troubleshooting a NIC

1 Restart the system and check for any system messages pertaining to the
NIC controller.
2 Check the appropriate indicator on the NIC connector. See "LAN
Indicators (Management Port)" on page 28.

If the link indicator does not light, check all cable connections.

If the activity indicator does not light, the network driver files
might be damaged or missing.
Remove and reinstall the drivers if applicable. See the NIC's
documentation.

Change the auto-negotiation setting, if possible.

Use another connector on the switch or hub.
If you are using a NIC card instead of an integrated NIC, see the
documentation for the NIC card.
312 | Troubleshooting Your System