ATI Radeon HD 4870 weird flickering problem (video to showcase)

So i thought that my videocard is probably busted and i went ahead and bought a Brand New Sealed HD 6850 and now although the problem is gone from the desktop it does happen when i play some games at high settings 0o...
 
Oops...:D Then it's definitely the motherboard. Also check the video slot on the board, it might be damaged, or the case preventing a good seating of the video card on the slot, wires or fans getting in the way etc.. I would try the on-board video card too, if you have one, just to see if it does the same.

It's a bit weird, I have never seen a motherboard give such symptoms. Usually when you see bars like that it's the video card, but I guess you never stop learning new things along the way :blush:
 
I must admit I haven't seen such behaviour and a faulty PCI-E slot doesn't come along very often. Bad luck mate! New motherboard shouldn't set you back too much if you just need the one PCI-E slot, etc.
 
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