Hi, since the card INTEL X520 DC  is not a Dell part we need to know the specification to give you any directions. With a Dell part we normally ask for the part number but this isn't the case.

I

Hello,

it is Dell part, Part No.: CYK8V

Complete name: DELL CYK8V INTEL X520 DC Dual 10GB SFP+ Adapter HBA Card PCI

Hello,

I confirm that part CYK8V is compatible with R710.

Thanks

Marco

Marco: Thanx for your investigation.
Can anybody advice me which SFP+ minigbic module is compatible with this HBA card? I tried several brands of 10G modules (up to 10km) but neither has been worked.

ixgbe 0000:07:00.1: failed to load because an unsupported SFP+ or QSFP module type was detected.

Also option allow_unsupported_sfp=1 doesn't work.

Thanx...

Hi, do you have a pic of  that SFP+ ? We'd like to see the part# as well.

Hi the cards you've shown are really old

1. https://dell.to/3Ka9Qdi

2. https://dell.to/3Mja2IP

so I couldn't find the compatibility information on those. Best if you rather go to https://dell.to/3tjHoyQ I'd say, at this point. Sorry I couldn't be of help this time.