Treyster :
alexoiu :
The board might need a BIOS update for supporting the Kaby. Try returning it and buying instead a B250 one. Or, a local pc shop might help in flashing the board's BIOS.
It doesnt suppirt kaby lake
It does, with a BIOS update:
http://uk.gigabyte.com/Motherboard/G1Sniper-B7-rev-10#support-cpu