Dell XC6320 Owner's Manual

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• Remove all added peripheral devices, one at a time, and try to turn on the system. If after removing aperipheral device, the system works, it may be an issue with the peripheral device or a configurationissue between the peripheral device and the system. Contact the peripheral device vendor forassistance.• If the system does not turn on, check the LED display. If the power LED is not on, you may not bereceiving AC power. Check the AC power cord to ensure that it is securely connected.Troubleshooting system startup failureIf your system halts during startup, especially after installing an OS or reconfiguring your system’shardware, check for invalid memory configurations. These could cause the system to halt at startupwithout any video output.For all other startup issues, note any system messages that are displayed on the screen. For moreinformation, see Pre-operating system management applications.Troubleshooting external connectionsEnsure that all external cables are securely attached to the external connectors on your system beforetroubleshooting any external devices. See Front panel features and indicators and Back panel featuresand indicators.Troubleshooting the video subsystem1. Check the system and power connections to the monitor.2. Check the video interface cabling from the system to the monitor.Troubleshooting a USB deviceTo troubleshoot a USB keyboard and/or mouse for other USB devices, go to step 5. Use the followingsteps .1. Disconnect the keyboard and mouse cables from the system briefly and reconnect them.2. Connect the keyboard or mouse to the USB ports on the opposite side of the system.3. If the issue is resolved, restart the system, enter the System Setup program, and check if thenonfunctioning USB ports are enabled.4. Replace the keyboard or mouse with another working keyboard or mouse.If the issue is resolved, replace the faulty keyboard or mouse.If the issue is not resolved, proceed to the next step to begin troubleshooting the other USB devicesattached to the system.5. Disable all the attached USB devices and disconnect them from the system.6. Restart the system and, if your keyboard is functioning, enter the system setup program. Ensure thatall USB ports are enabled.If your keyboard is not functioning, you can also use remote access. If the system is not accessible,see Jumper settings for instructions on setting the NVRAM_CLR jumper inside your system andrestoring the BIOS to the default settings.7. Reconnect and enable each USB device one at a time.8. If a device causes the same issue, turn off the device, replace the USB cable, and turn on the device.76