Yes that's the target for LN2 but IMC won't do 3700 C11 on air, no way. Need that cold scaling.
This is a known issue with Ryzen 1000: the IMC gets worse with cold. Here is Elmor's graph (from overclocking.guide) :
Ryzen 2000 no longer has this issue, often even getting a bit better with cold - for example 4000C12 dual channel is much easier cold, on any chip. On ambient I can't consistently do that.
Yes I always get 109 for 16K. But I have focused on timings so far, still need to optimise O.S. and waza.