Device selection error occurred during startup.
Device selection error occurred during startup.
The Dell system shows an error about the boot device not selecting properly. It seems the Optiplex 390 might be having issues with the storage or driver setup. Check connections, try a different drive, or consult the manufacturer's support for further assistance.
Did you make any changes to the PC before it failed? Such as relocating it or disconnecting specific components? Have you verified that the hard drive or SSD is properly connected and recognized by the system? It could be sufficiently plugged in for detection but not enough for data transfer.
I installed the new power supply, RAM, and a 1050 unit, but it failed to function. I reverted to the original components and it still didn’t work. It operated before I made any changes.