Hello. I'm Norwegian, but I'll try to explain this as good as possible. I got my 660 ti/OC today, and I installed it careful into the computer. I started the computer, and installed the newest drivers. It all went smooth, until I launched CS:GO. It took about 5 minutes, and then I got a blue screen.. I thought, "ok, thats no biggie", and it booted again. I tried to play the game once more, and almost the same thing happened. But my screen went totally black, and I thought the card war broken.. I tried connecting it again and again, checking all the cables, but the card would not connect to the monitor. I have a new computer, with a Corsair AX 750W PSU, and the fans at the card is working. I tried installing the card into my fathers computer, and there it worked fine.. He got a badder PSU than I do, and a three yrs old PC.. His card, and my old card are working fine in my computer, but not the 660 Ti. Does anyone here have a solution or a tip that might help me? This is pretty frustrating for me, and it makes me sad.. Things I've tried: - In another computed - Taken out my soundboard - Reset every bios settings - updated everything I'm not good at this, because I've never had any serious problems with my old computer (had it for 4 yrs). But I have BlueScreen Viewer, so please tell me what info you need, and I'll hand it to you. Here's some info, please tell me if you need more. First time bluescreen: Bug Check Code: 0x0000000a Bug Check String: IRQL_NOT_LESS_OR_EQUAL Caused by driver: ntoskrnl.exe Second blue screen: Bug Check Code: 0x00000116 Adress: dxgkrnl.sys All help is very appreciated. I really hope you havre som answers to me. Thanks.