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We just got our computer back from having moved and when I tried to hook our speaker system, the computer keeps telling me that I don't have a sound system installed. It's a Dell computer with the original surround/subwoofer system that it came with and was working fine before the move. I tried buying a new speaker system (Logitech) to see if it would work, but still saying I have no audio device installed and it's not showing up in my device manager. I opened up the computer and unplugged the sound card, then plugged it back in, still nothing. I put the install disc from the sound card in the cd-rom, but it's saying that I have no sound device hardware in my system.
you could view the hidden devices to see if the old driver is still there, it wont do a lot of good for troubleshooting though. Are you making Sure that your completly unplugging the computer before reseating the sound card? Are there any devices shown in Unknown? The problem your describing does have more to do with the audio card being recognised, than anything to do with the speakers. – Psycogeek – 2012-03-19T09:28:49.187