Tyan S5512 Heatsink question

[JDM_WAAAT]

I know you deleted your post, but for others:

The NAS Killer 4.1 mobo (Tyan S5512) has a permanently fixed backplate. Take a look at the list below to find a CPU cooler.

[Official] CPU Heatsink Recommendations

Air Cooling Notes Generally speaking, Arctic makes a product that works for every solution. They are affordable, high performance, quiet, and well built. LGA115X = LGA1156, LGA1155, LGA1150, LGA1151, LGA1200 LGA115X (hole/backplate) Consumer motherboards usually have pass through holes. Xeons often have permanently attached backplates, forcing you to use its mounting threads. LGA1366/1356 = Xeon support with fixed backplate All LGA2011 models include fixed backplate, regardless of consumer …