If the E-2134 can go with the Intel® C246 Chipset in your 3630, you're in luck.  Socket type is the same, FCLGA1151. EDIT:  C246 chipset supports both E-2134 and E-2136.  [URL] 
Hi, I was looking to upgrade the CPU, at least to get more threads (from a 2224G). I can see the Xeon E-2136 in the CPU list, but somehow the E-2134 is missing. It looks like the same CPU, but with a different clock, and coincidentally, it's the one I want to buy. Is this CPU really not compatible? (maybe it simply didn't go through the testing process?) Or is it just missing because some other reason?   Thank you
Precision 3630 supported CPU: Xeon E2136 but no E2134?