GTX570 crashes during games/3D - tried everything

Question

Hi,
I got a fresh computer :
Cooler Master CM690II Advanced
MSI P67A-C45
Core I5 2500K
Noctua NH-U12P
2x2 PC1600 GSKILL
MSI GTX570 1go
ANTEC HCG-620W
Win7 64bits
And since 1 week it worked perfectly. But today, it has suddenly got an error while playing SC2 and I could not launch and play a game or an application which involves 3D...
I can run the bench of Afterburner for hours and can't run SC2 or League Of Legends without any freeze (the game still continues as I can hear the sound).
I put Afterburner CC on 732 / Shader Clock 1464 / Memory Clock 1900.
When I attempted the windows bench, it freezes and the screen became black. When I put the speed fan% at 85, the windows bench worked perfectly. I tried on SC2/LOL but even with a speed fan% set at 85, it freezes before the black screen.
So, I have read to update the drivers, to rollback to another version, to try directX11/directX10 etc. It does not work !
Do you have any solution please ? Is it an hardware problem which requires to get the card back to the seller ?
Thanks in advance for your help.
Best Regards,
Ace

Answer 1

Hi Svet,
Thanks for your quick answer. I did :
Drivers removal with Driver Sweeper in Win7 Safe Mode;
Install lastest driver 275.50 (beta) from Nvidia;
Re-install DirectX11;
===> The windows bench was passed perfectly 7.5 (7.5/7.9/7.9/7.6 SSD FTW) ! There is a hope, I am going to try LOL (when the queue will be passed -1hour? :D) and SC2. Gonna give a feedback asap.
Thanks,
Ace