Troubleshooting Your System; Safety First-For You And Your System; Troubleshooting System Startup Failure; Troubleshooting External Connections - Dell NX3230 Owner's Manual

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Troubleshooting your system

Safety first—for you and your 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 came with the product.

If you boot the system to the BIOS boot mode after installing an OS from the UEFI Boot Manager, the

system hangs. The reverse is also true. You must boot to the same boot mode in which you installed the

OS.

For all other startup issues, note the system messages that appear on the screen.

Ensure that all external cables are securely attached to the external connectors on your system before

troubleshooting any external devices.

Check the system and power connections to the monitor.

Check the video interface cabling from the system to the monitor.

Run the appropriate diagnostic test.

If the tests run successfully, the issue is not related to video hardware.

If the tests fail, see the Getting Help section in this document.

About this task

To troubleshoot a USB drive or mouse device, complete the tasks 1–6. For other USB drives, go to step 7.

Steps

Disconnect the keyboard and mouse cables from the system and reconnect them.

If the issue persists, connect the keyboard or mouse device to the USB port(s) on the opposite side of

the system.

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