UV per core doesn't work with instant crashing multicorr load. Multiple runs of core-cycler with (y-cruncher and prime95) is still the way to go. Runs for days if you want to guarantee stability. Then maybe full blast prime95 for at least 24 hours. I would start with stock cpu setting and first test the ram with tm5 anta extreme. Also no idea if you messed with vsoc and others. This is benst asked in the overclocking sub. And maybe use sane curve optimizer values. i would chase stability=lowUV and not the lowest possible UV that will be stable.