7 hours ago, Nemo said:

That's bad luck. I have read  in HW forums that it is always better to prefer 2 sticks over 4. Was it matched only (exact the same setting, but different purchases) or was it a kit (= 4 tested sticks with same settings). If not the latter, this can lead to problems.

It was the latter kit of 4 matched, still doesnt work

In 2024 64GB is absolutely helpful if you run older 2020 addons.  I've routinely seen over 40GB ram while using 2020 ports (aircraft/scenery) in heavy areas with weather and high TLOD 300 and up.