It really gives the game away when you see that workstation/server parts aren't riced. None of that stuff actually helps.
Does it?
That kingston ram is DDR5-5600, with smaller memory sizes, and has a longer warranty. This suggests that the product is binned memory from a line that is relatively mature (and by extension low failure rates).
And, because it's clocked lower, it runs cooler, which reduces failure rate.
On top of that, server memory is usually binned more strictly. And, it usually has bits missing for ECC, custom controller firmware, and cutting edge processes for packing more memory into the form factor.
Now as a consumer you may think an LED is "riced" out, but I think custom firmware on your ram built for your application is way more "riced".
> None of that stuff actually helps
It probably actually does, especially for "high end" ram. IE stuff running at much higher transfer rates. Heat and voltage are the enemies of stability here. A heat sink/transfer shield is certainly going to help (in theory, anyways)
On top of that, server ram has a higher expectation of cooling quality than consumer, which can be anything goes.
They're usually perpendicular to the air flow. Bonus points for there being a beefy ATX connector in front.
So maybe the first stick gets some air, but all the others are hidden behind it and don't get much. I think that's the theory why many heatsinks on ricing sticks tend to have a comb design.