Yeah hyperthreading is what I meant. As to the other questions, I’m using a Noctua NH-C14S air cooler which fits my 4 unit rack case. It’s idling around 52°C package temp with so far up to ~50-60% CPU use and zero noticeable fan noise while the lid is on. If I take the lid off the temp drops to the high 40s. All of these are comfortable temperatures for me.
At least from my use there’s no reason to get a water cooler. Especially in a studio where you need silence this works just fine.
Regarding hyperthreading disabled - I have observed no abnormal behavior with hyperthreading disabled. I would want hyperthreading disabled regardless as some of my synths use a very large amount of CPU in a single thread and I need each thread as strong as possible.
On topic for the thread I will continue to stress my projects a bit more but I don’t think I will use much more CPU overall in any practical sense. I’d have to create a torture test project to go much higher and I don’t see the point. From what I can tell everything is working fine.
This is definitely from my experience a very good CPU for audio and it’s taken any stress of running out of CPU away from my mind. Most people will never need this much CPU ever for any reason. I will update if I run into any trouble.