The newer drives do benefit from running cooler because they get hot that it actually throttles their throughput.
This is kind of like watercooling RAM - main reason to do it is that you'd already have a loop in there, and the alternative is to rig a fan solution so why not?
(there are many reasons "why not")
Dunno. My Aorus board came with heatsinks for the m.2 slots. They seem to do their job. How well, who knows. There's no temp monitoring for m.2 drives.
Sure about that? I've seen all kinds of temp monitoring from M.2 drives. Tried HWINFO64 etc.?
Supposedly it'll start shipping this month. It's a $900 board/block combo though so it ain't cheap. But I like that it also cools the m.2 slots with the monoblock. Couldn't find any other that does this on AM5.
Found it!
Water-cooled AM5 high-end motherboard based on the new AMD X670E chipset
www.ekwb.com
The Carbon is MSIs top 'gaming' board, in their 'MPG' tier. You go any higher, to the Unify / ACE / Godlike and you're getting into XOC (extreme overclocking, i.e. LN2 and dry ice) and / or just getting stuff like USB4 (TB4) and / or 10Gbit networking built in.
It'd definitely be my go to for a 'pure' gaming system with tweaking in mind, especially as part of a custom loop.
As for the price - well that's another story. Neither the VRMs nor the SSDs actually need active cooling, water or otherwise, and current Zen 4 CPUs lack the memory controller needed to push much above 6000MT/s, so RAM wouldn't need active cooling either.
Biggest problem though is that stupid IHS design AMD went with to ensure AM4 cooler compatibility. Any serious overclocking is going to involve delidding and running direct-die cooling, and no monoblock is going to be able to work with that.
All that said - if I wanted a 'set it and forget it' solution for say an R9 7950X3D, well, this is the board I'd use.