Thanks. It does look like I'm going to have to replace the motherboard. Let the system sit unplugged for a day and tried the cards again. Get a display out of them, but the the system still freezes after a few minutes of video are played.
I can't do most of the other troubleshooting steps since I'm not getting any display off the system. Don't have another motherboard I can try the cards on, unfortunately.
Motherboard: KT400 Dragon Ultra
1st Card: GF 6800 XTreme
2nd Card: FX 5700 LE
When I start up my system, I get the standard POST beep, and then a beat later get a long-short-short-short error beep and it sounds as if the system keeps on going through the rest of startup, even though the monitor doesn't display anything. At first I thought I had somehow fried my video...
Both of them were idiots. The cheater for cheating, and the employee for going to such inordinate lengths to exact revenge over something that doesn't really matter. Yeah, it's annoying to get packet flooded, but it's no reason to go power tripping like that.