This could certainly be the case with Windows, but I think Linux appears to be handling it better. In my case, when increasing the number of concurrent plots my SSDs (4x PCIe 3.0 x4) hit their “limits” before the CPU does. By “limits” I mean the point at which progress noticeably slows down and iowait shoots up.
Hopefully the firmware update and Samsung NVMe driver will improve matters, but like you say there does seem to be a separate issue at play here - something in your BIOS settings perhaps.
Haha - I’ve hit 51 (now 52 after the queue levelled out) plots a day (12 parallel) on my Linux 5950X machine (not overclocked) so I think there’s something that’s being missed here (other than just Linux). I’ll post my setup details later if it helps.
