windows8 video card problem - Windows 8

Hi there,

I upgraded video cards from a Galaxy GeForce 210 to a EVGA NVIDIA GeForce GTX 460. Everything worked fine at first but shortly after installing it i've started to get page fault in nonpaged area and memory management BSOD's and i'm not sure if that has anything to do with the new graphics card or if that is just a coincidence. I tried switching out the RAM to different slots, and even did a clean install with Windows 8 but i'm still getting blue screened at random points, sometimes i'll be able to get on and play World of Warcraft or whatever else for hours and be completely fine, and other times it will blue screen after just 5 minutes of surfing the web. I've also tried reinstalling the video drivers and motherboard drivers. I'm currently running Memtest on it and hopefully i'll see if it's a problem with the memory or not, but any other advice would be appreciated and if someone could point me in the right direction on how to do so, i can post the dump files if it blue screens again. Thanks!

Hardware

CPU: AMD Phenom II Black Edition
Motherboard: ASUS M4A87TD EVO
Video Card: EVGA NVIDIA GeForce GTX 460
PSU: Thermaltake TR2 600W
RAM: Sector 5 8GB DDR3 (2x4GB) (Manufacturer is Patriot)

Hi Virus,

Does your graphic card compatible with windows8?