Finally done w/ my PBO2 undervolting. Took 8-9 days to do the 5800x. Did at least 10 hours of prime AVX stable for each core. Ended up w/ the following negative offsets. Core 5 & 7 are the preferred cores.
Core 0 -10
Core 1 -19
Core 2 -27
Core 3 -24
Core 4 -18
Core 5 -11
Core 6 -12
Core 7 -20

Core 0 -10
Core 1 -19
Core 2 -27
Core 3 -24
Core 4 -18
Core 5 -11
Core 6 -12
Core 7 -20

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