Hi!
Currently experiencing this weird event with my computer. Currently I have a 7970 which was working hours ago then suddenly when I restarted my computer, no display would come out.
So I tried swapping this out with my brother's GPU which is a R290 on the same PCIE slot on my computer and it works.
I then tried my 7970 on my brother's computer and apparently it works there. Display comes out.
When I tried to put my 7970 back into my computer, there's no display. (Frustrating!)
I know my OS (Win7 64bit) had an issue about this time so I was for to do a reformat. Clean install of Windows 7 all over again.
What do I do?