Altera 10G on Board S5-PCIE and INTEL X520

[Altera_Forum]

Hello! I compiled the project SVGX_ETH_10GBASER_DEMO_DESIGN.qar for the Board HiTechGlobal S5-PCIE with the account of any other connection pins of the FPGA. As the test runs from the system console all works fine when I connect the output to the input. But when I connect the output to the card 10G adapter INTEL X520 (SFP+ INTEL) on the card does not rise to the link. In what may be the problem? 

 VICTOR.