Overclocking\Advanced CPU Configuration\AMD Overclocking\Curve Optimizer
Now in the first area in the MSI Click Bios cores 0-7 are present but in the second are only cores 0-5 are present. I've raised this with MSI who have tested a 5800x in the same board on the same bios and don't have this discrepancy.
Curve optimizer performance is strange as well, I can run a heavy all core bench like Cinebench on a loop for 10 mins with all core negative offset and it's fine but it will then blue screen with WHEA uncorrectable errors when light browsing, gaming etc.
All cores are seen by Windows but the cores section in Ryzen Master is completely blank like it can't read them.