Dell PowerEdge R815 Hardware Owner's Manual - Page 151

Troubleshooting a Serial I/O Device, Troubleshooting a NIC

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4 Reconnect and power on each USB device one at a time. 5 If a device causes the same problem, power down the device, replace the USB cable, and power up the device. If the problem persists, replace the device. If all troubleshooting fails, see "Getting Help" on page 185. 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 a cable in good condition, 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 185. Troubleshooting a NIC 1 Run the appropriate online diagnostic test. See "Using Online Diagnostics" on page 171. 2 Restart the system and check for any system messages pertaining to the NIC controller. 3 Check the appropriate indicator on the NIC connector. See "NIC Indicator Codes" on page 20. • 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. Troubleshooting Your System 153

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Troubleshooting Your System
153
4
Reconnect and power on each USB device one at a time.
5
If a device causes the same problem, power down the device, replace the
USB cable, and power up the device.
If the problem persists, replace the device.
If all troubleshooting fails, see "Getting Help" on page 185.
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 a cable in good condition, 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 185.
Troubleshooting a NIC
1
Run the appropriate online diagnostic test. See "Using Online Diagnostics"
on page 171.
2
Restart the system and check for any system messages pertaining to the
NIC controller.
3
Check the appropriate indicator on the NIC connector. See "NIC Indicator
Codes" on page 20.
•
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.