Could be a shady CPU of course, but so far all results produced are valid and I don't get any other odd behaviour. Anyway, I let it run with the CorePrio turned on from start and it has been running for over a day now. This time no crash, but the results are not good:

1. I get very low Points-Per-Hour, like 7.75 BOINC p/h where usually I'd get 22.5p/h or so.
2. Checked with HWINFO64 Sensors mode and saw that only the first 16 cores or so were utilized to 100%, the rest were hovering between 90-98%. Turned off CorePrio Service and then all the core's utilization went back to 100%.

So for BOINC-crunching, based on the tests I did, it will probably not do much good. My suspicions is that it would give a benefint in applications that can utilize 16 cores because then it would matter which CCX cluster that the threads will be run at. But in the case of BOINC/WCG...using all 64 threads already...I don't know what good would come by moving them around?

Regarding Linux, maybe a project for later. Right now it's too much effort than I can afford since there would be a learning-curve that need time to follow along and I can't find that time right now unfortunately.

This issue isn't a lack of utilization. It's that the Windows scheduler sometimes can't decide what to do with all the threads, and spends half the CPU runtime merely shuffling threads around. The CPU is being utilized, just not for anything useful.

I don't know whether it affects WCG. But if coreprio helps, it's through the "NUMA dissociater".

The Coreprio authors note that

Fundamentally, it's probably a bug in the Windows scheduler, and this is a obscure workaround that works (sometimes) for reasons that are not entirely clear.

Nice project mdxi!
Why don't you start a seperate thread for a disussion about this? I guess there are many people with questions about this!

You folks with any thread ripper processors having heat issues? Looking at the newegg feedback on these chips seem to point to heat issues. thanks

The 2990WX I am having some heat issues with yes (triple fan setup). Tried Precision Boost Override with a negative voltage offset to let the CPU and Motherboard decide for themselves how high it can clock, and that worked okay, but right now I am running 3.3GHz on all cores at 1.03Vcore I believe. CPU runs a bit hot (68 - 78 degrees Tdie (not Tctl)). But, that's because summer is here and it gets really hot inside. Ambient is 26-28 on sunny days now. In june-august if it gets really hot outside then ambient will be 31 or so. Chassis is the ThermalTake Level 10 GT Snow.

All temperatures in Celcius.

It's a really nice CPU though, hard not to fall in love with it and it would have so much more to give with better cooling. Thinking of getting the Cooler Master H500M (Mesh) chassis as it has received good reviews.