$ lspci | grep "00:1c.5" gives 00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1) which seems to the PCI that is failing
$ lspci | grep "00:1c.5" gives
00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port (rev f1)
which seems to the PCI that is failing