Card Compatibility

Hi all…
I’m installing an HP ML 350 server to transfer an old pbx on…the customer needs an analog card.
This HP has several pci-ex slots but they are 2.0 and 3.0…i tried to put a digium card i have on 3.0 and doesn’t fit at all…on 2.0 fits but it has not been recognized…

Has anyone had this kind of compatibility issue?

is there an analog card pci-ex 2.0 or 3.0 compliant?

Thanks

I meant pci-ex Gen2 and Gen3. I have read theat this kind of slots should be retro-compatible with pci-ex Gen1…but nor in the bios netither in the console (lspci) the card has been seen.