r630 and PCI Bifurcation Compatibility

I have an older r630 I got from work when we upgraded and have a handful of drives in the bays but was hoping to slap a few NVME's via PCI to add some more storage. I bought a half height dual nvme pci card and put 2 nvme's in them - installed two of the cards for testing. During power on it throws a PCIe initialization error. Once I continue boot and load into the OS (TrueNAS SCALE) and I see one drive but not all 4, so now I'm wondering two things.

Is one of these cards bad? seeing only one drive from the card leads me to believe Bifurcation isn't possible on this platform?

One nvme showing leads me to believe I'll only be able to run one stick per card which kinda sticks but if that's the situation it is what it is. I'm not going to hard on the probably bad card for now.

So to end this probably ongoing rant with no end, has anyone been able to use a multi nvme pci card in an r630 without issue? The BIOS settings by design of course don't have many settings, the PCI settings are all default and the firmware via LifeCycle and iDrac is all up to date so hoping for some verification or feedback on things to try for the working card for now.