So in anticipation of BF3 yesterday I installed the latest driver. Played wow for a bit, then it suddenly crashed. No biggie, just reboot and keep going right.... Wrong. Kept getting the kernel driver was restarted and just a few seconds in game and it froze up, sometimes it just rebooted.

So I did some testing, as long as I didn't start up anything that required 3d graphics(Plants vs Zombies ran fine for 30+ minutes), I was ok. Checked the temp of my cpu and my gfx card, no problem. Uninstalled the latest drivers and went back to the previous ones I had(clean install, used a tool to get rid of all remnants before installin). Still no joy.

So I grab my old 260GTS(or was it 250) that I kept just for situations like this. Remove all drivers put in my old card, boot up, install the latest drivers. Reboot, and it gets to the point just before login and it freezes. Starts fine in safe mode, but not on my life in normal.

So i read a bit on the Zotac forums. Apparently there is a problem with the vCore being a bit low on those cards, so I grab MSI afterburner and up it to 1.0025v(or whatever was recomended). Still no joy.

Now I'm thinking that since my old card which I did replace because I wanted something with more horsepower not because it was bad doesn't work in my computer, it has to be another component. I'm thinking my 700W PSU Coolmaster, it's about 2ish years old same as my motherboard. Unfortunately I do not have a replacement to try, but it's the cheapest component to replace. 700 W should be enough for a Geforce 580 GTX, 2 SSD disks, one regular and a DVD, right? The 700W have served me well with the rig for the last 6 months since I bought the graphics card, so it worked for 6 month so it should be enough?

Any tips anyone have to check if it really is my PSU that is the problem, or any other tricks I might try to get it to work?