So I was wrong, the holes on the board for heatsink mount are slighty different from standard. It looked right when I eyeballed it, at least for the CPU Riser Card, but going to actually mount it there is a slight difference. I probably can’t afford to custom mill a hunk of metal as an adapter. I’m not using the trash can heat sink either.
I can work around this if I permamently secure the heatsink to the board, but then I cannot remove the CPU afterwards or it will be destroyed. I wanted to switch from 12 core 2.7ghz E5-2697 v2 to 8 core 3.3ghz E5-2667 v2. Anyone who has an E5-2667 v2 and prefers more cores to more ghz want to swap before I sign this CPU’s death note?