My Dreamcast gaming isn't going at the moment, sadly.

The DC needed a new fan so I installed an Evercool EC 3010, 5V 30mm 8000 RPM. The DC starts up, the logo screen plays, then it goes to black. I think that maybe the problem is that the new fan uses more power than the old one, so maybe I need to connect the fan to the power board instead of the controller board. Before I do anything, I want to know: Has anyone had this problem with their Dreamcast? If so, how did you remedy it?
I know the problem isn't my VGA box because it does the same thing with a VGA cable and a composite cable. The DC worked just fine before I put the new fan in, and the fact that it still starts up (briefly) leads me to believe that the only problem with it is the fan, and that if I can get this sorted, I can get back to gaming.