FAQ - Frequently Asked Questions - Knowledge Base
[Node Duo] What happens if I install a PCIe card with four PCIe lanes?
It depends on the PCIe card. If the card can also run with fewer PCIe lanes, the performance might be limited but the card will still work OK. If the card requires four PCIe lanes or more and is not compatible with only two lanes, the card will likely not be recognized correctly or it will be recognized but does not work properly.