Hello users of techspot.com i am new to this forum and if i posted something wrong please correct me. I have a problem instating my new video card witch is a ATI Sapphire HD5770 Looks great and all, but if it does not work it does not do me any good so i need your help. I am not new to upgrading computers and making them from scratch so do not answear with a "uhgg did you plug it in?" My system is: CPU: AMD x4 940 runnning at 3.00 GHz Mother Board: xfx geforce 8200 PCU: OCZ 600W Memory: 2 x 2GB Patriot running at 800MHz Video card: integrated GeForce 8200 When i put the new video card in basically what happens is my monitor shows black all the time. Also i noticed when i start the computer it spins the fans it stops for 1-3 seconds and starts normally from then on with a black screen. I also think after it starts up normally it stops some where that i can't see where... Because my mouse and keyboard are unresponsive. (leads are not on and can't be switched on and mouses optical red light is never on at that point in time.) The thing is that a recently changed my CPU too. It was a AMD Athlon 64 X2 5000+. Any help would be appreciated.