I just built a new system... having some trouble with start up. I only have the needed hardware inserted (motherboard, video, cpu, memory) and when I turn the system on, the system powers up, the fans spin etc but no video and no beeps what so ever. I think it may be a issue with the power supply. The proccessor is an AMD so I am using a AMD 300w power supply. I have tried a few different power supplies with the same outcome. I tried a Intel 400w power supply and the system turns on normal with video and beeps but then powers off right away. I have tried resetting the bios many times. Can anyone help??? THANK YOU!