I don't mean to be rude, but did you ever look? Swapping parts because something is wrong would fix weird PCIe errors as well. Also, PCIe usage has probably gr

I don't mean to be rude, but did you ever look? Swapping parts because something is wrong would fix weird PCIe errors as well. Also, PCIe usage has probably grown exponentially over the past 10 years. Its possible facebook has an order (or two) more of PCIe "links" in their datacenters today compared to 10 years ago.