my computer won't boot up, there are no screens, no beep from the mobo, but everything powers up correctly so i am figuring a mobo problem. I've gotton it to beep once but it won't boot anything. First of all i want to know what you think it is, and also where can i get a mobo that runs 333 mhz ram and a socekt 478 pentium 4 ht, wit h agp slots ive searched and found nothing >_<