Tested PCIe cards and output

[Nikolay_Po]

Hi! Probably, your card requires BIOS support which is impossible with this SBC. For the chip your card used there should be Marvell BIOS support, like I see in different product user manual.

The cards which doesn't use dedicated BIOS support should work.

Also if you have spare hardware, you can try to insert the card into PCIe slot while the SBC is running, make a hotplug. If the hardware will not blow-up, probably you will got more information in kernel log.