So let me start from the beginning, a few years back i built a brand new computer and it ran perfectly for a good while. A few months ago it started blue screening and i ran memtest86+ and got thousands of errors, so i sent it back for replacement, new memory came in and ran fine for a month or so, then again with the BSOD, memtest showed failures again so i tweaked the bios and still couldn't get it to run stable for long periods of time. So i had it replaced again and just got it back, second i start it up BSOD, and memtest shows errors. I honestly don't think its the memory, to get 3 bad sets of ram in a row from Corsair (a company who usually provides a quality product) would be highly illogical. So now im at a stand still, I've run a hard drive diagnostic and found no errors, uninstalled my nividia drivers since that's a common issue and still no fix. Most importantly this is a clean install of Win 7x64 from a new disc, all it has are drivers, Norton Internet Security 2011, and fallout 3. So from where i sit its either my MoBo or CPU, and i really dont have enough money to buy new parts without knowing whats wrong for sure. System Build: PSU: Corsair TX 750W RAM: Corsair TWIN2x4096-6400C5DHX G MoBo: Gigabyte GA-EP45-UD3P CPU: Intel E8500 3.16Ghz HDD: Seagate 500Gb GPU: XFX Nvidia GTS 250 Any ideas are welcome and i will post Minidump files as soon as i can, thanks.