So, I tried the Ryzen Master curve optimizer on my 7900X, and it looked stable in OCCT (extreme, AVX 512), and then hard crashed almost immediately building a medium-large Unity project with IL2CPP. Saw similar behavior on my old 5950X work PC.
Is there a better tool out there than OCCT to stress test with?
You need to stresstest PBO CO values in
single/light threaded applications, not allcore workloads.
I suggest
Coreycler with the following cfg.
Set allcore CO values to something like -20 except on your two "star cores" on CCD0 (ones with highest CPPC rating). Set these two at -10
Start stresstest when you leave for work / goes to sleep etc. (computer should not be doing anything else when running corecycler) (want to keep threadcounts to a minimum)
After each crash running corecycler, check the logs to see what core cycler was running on and increasse the PBO CO value by something like +2 on that core -> repeat again
If nothing crashes you can set more aggressive PBO CO values
Stability test script for PBO & Curve Optimizer stability testing on AMD Ryzen processors - sp00n/corecycler
github.com
Just so your warned, finetuning above takes lots of time to complete, so if your not prepared to spend this kinda time tinkering with your system maybe its just better to leave PBO CO alone
*edit*
If you want to use a other benchmark than Corecycler i suggest 3dmark Profiler as the next best thing.. Tuning can also be completed much faster, but its harder to understand which core exactly are responsible for system crash.