I'm running a asus crosshair V formula Z MOB with a AMD fx-8150 eight core processor using a corsair h100i water cooler a cool master 850w power supplie and 16gb gskill ram and 2 amd Radeon 7800 series graphic cards and windows 8 64-bit . After updating my bios I can no longer access my bios and I get a code 66 when I reset cmos using the rear switch and try to restart I get code 99 and have to flash the bios to get system to boot windows also there is no post message anyone have ideas