SD Card Cannot Boot Board
If, after attempting to boot the board with the SD card that contains the default FPGA image (from the guided setup), the Done light is unlit, then the SD card was unable to boot the board.
The ZC702 board does not support some newer SD cards. It is recommended that you use the SD card that came with the board.
Try loading the default SD card image onto another SD card, and restart the board with the new card. If the boot is successful, the Done light is lit.