The computer I just built when you first turn it on it will not boot if you hit the reset button than it will. When I noticed it was when I added another hard drive, in the bios I did turn that one off, but no change. Once on, and you have to do a restart it will boot up fine that way. Any ideas? Did check the wires on the mb and ok. Also did reload windows 7 but no change. Wanna kill these ads? We can help!