I recently purchased Sapphire HD 5970 Toxic 4GB, which is a monster card if you ask me. But ever since i put it in, i am experiencing freezing of my computer, being unresponsive, without any restart, it just hangs like that. It is not happening all the time, just sometimes when i play. I think that this is caused by my CPU, which is not overclocked, causing some instability. Here is a picture i took right after freeze and restarted pc :
Hey bro im not expert at all but here's my 2cents
-Did you do a clean install of your gpu
-Very important to uninstall all old drivers before installing new ones.
-lastly try downloading latest drivers for your gpu.
Hope you resolve your problem soon.
To clear things up..
-That thing on a picture only lasted while boot up, when log on screen popped up, everything was fine again
-Every fan is spinning, tested w/ 3d mark Vantage, temperatures are very good (50 on both cores, 69-71 on VRMs) so i dont think, that some GPU "has kicked the bucket"
I will figure out nothing when i re-seat the card. That error is not happening all the time, it was first time i saw that thing. I still think that its my CPU that is causing this. Because Powercolor 5970 2GB runs no problem, and it is less powerfull card, plus it is not overclocked. Ill get my watercooling up and running as fast as I can, overclock that little piece of s***t, and see if that makes any difference. If not, then its RMA. Also, can low operating memory frequency/capacity causing this?