I just picked a random 836 (you typo'd the thread title) chassis and asked Noctua for the answer. Looks like 110mm, since 115mm won't fit.Anyone know the max heatsink height for this chassis? i.e. will a SNKP0064AP4 fit (126mm tall)? The prices of the 4U cases in europe is through the roof and quite frankly embarrassing.
I have several of these in 836s. They work great!Here’s the link to the 3U Noctua (if it’s compatible with your CPU)
Noctua's DX line of coolers has become a default choice in high performance quiet cooling solutions for Intel Xeon CPUs. The i4 revision supports LGA2011 (both Square ILM and Narrow ILM), LGA1356 and LGA1366 based Xeon platforms and the new D9 model provides better performance and better...noctua.at
Thanks all for the help - this is for epyc so there aren't too many options out there. Seems Noctua doesn't make a 3U for Epyc and SNK-P0063P or SNK-P0063AP4 are my only options?