https://www.gigabyte.com/Motherboard/GA-H81M-DS2-rev-10#support-cpu
Your mobo does support the chip. Make sure you are on F5 bios version and above. (actually i guess the F5 is the primary) There are two bios versions available though: https://www.gigabyte.com/Motherboard/GA-H81M-DS2-rev-10#support-dl
CRITICAL: Check the revision of your motherboard. The above is for the 1.0.
ah thanks so much man , i think i have the rev 3.0 but just to be sure ill check again