Originally Posted by GAN77
It is your opinion. As they say - the taste and color of comrades is not. Someone DDR4 cools, this is also not necessary.
It's not an opinion, it's a fact. You can't and won't improve performance or cooling with a water block. All you will do is diminish flow rate, thereby reducing performance around the rest of the loop.
Cooling DDR4, whilst most people consider it not worth the effort, will potentially improve performance, temperatures & stability, and allow you to either go higher clocks, or more likely, lower timings.
The VRMs - to state it yet again - on the higher end X570 boards, are massively overbuilt. They don't get hot. Simple as. On the really overbuilt ones, the existing heatsinks don't really serve any function either, other than protecting them from damage.
This isn't X299 / Z390, which have a combination of potentially insane power draw / amperages, and weak VRMs.