*check ur psu first i looked for reviews and didnt find any if its a cheap one u have to buy a good one
*ur card maybe over heating make space for air flow or put a fan .........etc
I fixed the problem. I just reconnected all the cables and replugged the ram and also uninstalled the video card driver and it works now. Maybe the new amd driver 12.8 is causing me problems.
Which version are you using crimsondivel?