Here's the problem. I borrowed my friends Athlon 1 Gig Thunderbird and motherboard off of his old HP computer. Whenever i start up the computer, it'll show the Video Card bios screen (for my geforce2) then go black 9/10 of the time, like the rest of the bios isnt loading up. Any ideas what it could be? Could it be my generic 250 watt power supply?