The i5-2500k is not listed in the compatibility list, and it I don't see any reason for it?? But it's been awhile since I've intel'd maybe I'm missing something?
http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?DetailID=1500&CategoryID=1&MenuID=189&DCID=1&LanID=0
http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?DetailID=1500&CategoryID=1&MenuID=189&DCID=1&LanID=0