Owners Manual

Table Of Contents
If the issue persists, replace the device.
If all troubleshooting fails, see Getting help.
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 issue is resolved, replace the interface cable.
3. Turn off the system and the serial device, and then swap the device with a comparable device.
4. Turn on the system and the serial device.
If the issue is resolved, replace the serial device.
If the issue persists, see Getting help.
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 indicator codes.
If the link indicator does not glow, check all cable connections.
If the activity indicator does not glow, 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.
3. Ensure that the appropriate drivers are installed and the protocols are bound. See the NIC’s
documentation.
4. Enter the System Setup program and confirm that the NIC ports are enabled. For more information,
see Pre-operating system management applications.
5. Ensure that the NICs, hubs, and switches on the network are all set to the same data transmission
speed. See the documentation for each network device.
6. Ensure that all network cables are of the proper type and do not exceed the maximum length.
If all troubleshooting fails, see Getting help.
Troubleshooting a wet system
CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that are shipped with your product.
1. Turn off the system and attached peripheral devices, and disconnect the system from the electrical
outlet.
2. Open the system.
3. Disassemble components from the system.
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