I've actually considered rolling back to the Windows-provided driver for testing purposes.
I think I have an extra SATAII SSD lying around here somewhere, so I may try setting up a fresh Windows install there to see if it repros with just Windows+PrimoCache.
I'm still waiting on 2 parts for further testing: dedicated PCIe->NVMe card, and a new PSU (current one is a Bronze-rated 1000W that's on the older side, so it's theoretically possible there's a power draw issue, though unlikely).
If neither of those resolve the issue, a fresh install of Windows is my next test step for sure.
Hopefully the Romex team can get the issue to reproduce in-house so they can really dig in to it
