Could have the older board become cooked because i tried that 4 core cpu in the older board?? Or maybe the ram too?? I didn't try anything on the newer board. But couldn't get anything on that older board when i put the dual core back in it. I found the bad sticks of ram and changed but maybe that somehow did the older board in as well?? My direction of thought is newer board or 4 core somehow shorted out. Fried CPU or Motherboard itself. It seems more likely that it was the cpu as it wouldn't work in the old board i had. I went and installed the dual core thinking that the 4 core was bad. But it had somehow screwed up the older board as well. I found the 3 of 4 sticks that was bad (one at a time). So, I am at an idea that the 4 core was shot and because of that it shot the older board when i tried to use it along with the ram..