Optiplex 980, win 7 pro: Turn on and all the proper lights blink until it gets time for the start screen.......and that's it. I've F1,F5,F8,F12 and went through every diagnostic screen there is . It will run all the test and passes them until it gets to the boot part and nothing. What would be the adminstrator password for that. I've never set up one. Would a weak PS cause this? Any help appreciated. John | 
Dell computer won't boot
