Error detected with front I/O of Dell Optiplex 9020 device.
Error detected with front I/O of Dell Optiplex 9020 device.
The issue appears consistently whenever you launch your PC, and it's quite bothersome. You might try bypassing the startup sequence.
Is the motherboard installed outside the factory case? As mentioned in the article, connect the two pins on the front audio header together to resolve the "front I/O" issues.