Help with build problems !!!!!

[Korsun]

Hi all

not sure if this is caused by memory or graphics card or both! I have just replaced my Evga gtx470 1024mb graphics card with a Gigabyte gtx670 2048mb card.

Everything has been running fine for nearly a month but now I have an issue.
BF3 can run fine for 2 hours or freeze with a corupted screen after 2 to 15 mins. Images i have captured below;

http://s525.photobucket.com/albums/cc333/splishy1968/?action=view&current=IMG-20120715-00730.jpg http://s525.photobucket.com/albums/cc333/splishy1968/?action=view&current=IMG-20120715-00731.jpg http://s525.photobucket.com/albums/cc333/splishy1968/?action=view&current=IMG-20120715-00729.jpg
I have tried Nvidia drivers 301.25 and the latest I believe 301.42 to no avail.

I then decided to run Memtest 86+ and after 2 hours these screens were displayed which are surely errors;

http://s525.photobucket.com/albums/cc333/splishy1968/?action=view&current=IMG-20120717-00736.jpg http://s525.photobucket.com/albums/cc333/splishy1968/?action=view&current=IMG-20120717-00735.jpg

My questions are;

1. faulty memory?
2. faulty card?
3. psu power output not sufficient/faulty?

My CPU is clocked from 3.5 to 4.5 and has proved to be stable under test, so I think that this is not the issue.

Your knowledge would be greatly appreciated, as frankly I'm lost!!

 

[Korsun]

Thanks for the quick response mate. Is it the overclock at fault because its been running fine until I have changed the card?

 

[Korsun]

I'll try backing off the overclock as you suggested, its worth a try!

 

[Korsun]

Right ran Prime95 with multiplier at 45, failed after 6 hours of blend. Dropped multiplier to 44 and ran 12 hours successfully.

Now over to the overclocking forums to get this stable at 4.5 or even higher