I have Asus Z87 Deluxe, CPU Intel I7 4770k Quad Core, Hard Drive Western Digital 4TB SATA HDD, Monitor Asus 24 class LED, Video card Asus HD7790. Running windows 8.1 pro with media centre (x64) (build 9600) It boots into legacy mode. My BIOS is American Megatrends Inc. 1007. I know there is a...