Dear Steffen Winterfeldt Thank you for your reply. Well,I'll try it. Add some information,my iso boot environment,perhaps you want is ZALMAN ZM-VE350. <<http://www.zalman.co.kr/na/contents/products/view.html?no=20>> Also another ISO image,like openSUSE Leap 42.3 build 313, Fedora 26 and so on, it can boot with ASRock X99 Extreme 6. Best regards, Kazufumi Watanabe