Sorry to read about your loss Lethn.
I know you were exited to get it build

When I think back, I'm pretty sure either during applying the thermal paste or when I was trying to fix my heatsink problem I did hear a spark so it probably was a short circuit that finally killed everything.
Just asking.. you were messing with the heatsink while the power was on the board?
If that was the case you might have shortcircuit the damn thing..