Dell PowerEdge T310 Hardware Owner's Manual - Page 149
Troubleshooting a Serial I/O Device, Troubleshooting a NIC
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3 Restart the system and, if your keyboard is functioning, enter the system setup program. Verify that all USB ports are enabled. See "Integrated Devices Screen" on page 64. If your keyboard is not functioning, you can also use remote access. If the system is not accessible, see "Disabling a Forgotten Password" on page 174 for instructions on setting the NVRAM_CLR jumper inside your system and restoring the BIOS to the default settings. 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 177. 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 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 177. Troubleshooting a NIC 1 Run the appropriate online diagnostic test. See "Using Online Diagnostics" on page 165. 2 Restart the system and check for any system messages pertaining to the NIC controller. Troubleshooting Your System 149