Alright, my brother owns a Dell Dimension 2400 (I know). We put an Nvidia Geforce FX-5200 in it for Christmas, and things worked fine at home. However, we decided to attend a LAN party at my friend's house, and that's where the problems began to arise.
He turns the computer on, it will begin to boot Windows...and then it shuts off. We were able to go into safe mode and try to fix the problem, which worked for a while, but now that won't even work.
What seems to be the problem?