I mined a lot back in the day but now I'm coming back, seems stuff works much easier now.
I'm having issues with one card though, I knew it would be a fight but it's worth a shot!
Purchased knowing it didn't output any display, but detected by drivers etc, so I thought it might mine.
-Device Manager sees the card no problem.
-MSI Afterburner sees the card, but does NOT report clockspeeds or anything
-Drivers installed no problem (my integrated GPU is from the 3570K CPU so the AMD drivers wouldn't install without the card in)
-GUIMiner will not see the card
-Have tried dummy plugs and actual monitors
-Fan ramps up on boot and idles down properly
Any ideas? I know it's a long shot but it was cheap