Stratix V GX Transceiver SI Development Board

I am using Stratix V GX Transceiver SI Development Board and trying to use SMA Tx/Rx connectors. For pinout locations I am referring its schematic for FPGA pinout and reference manual for FPGA pinout to board mapping. But for selecting SMA transceiver connectors I have to set my design clock pin to relevant clock pin on FPGA. But I am not able to find exact information on that and even can not find mapping between ref clk pin number on board to FPGA pin. Can anyone please help me?

I am using quartus 14.0 and Stratix V GX Transceiver SI Development kit document downloads are Edition v11.1.2

As shown in the board picture, I am trying to use GXB Tx/Rx SMA and for that I need to decide which reference clocks to use. Here on the board two different sets of Transceiver Input Reference Clocks are there.

Thank You!