hi, just completed a new wc set up upon restart bios and windows only showing 12gb ram ,same ram as i used before so i replaced ram as i thought i might of damaged a stick, installed new ram 4x4 16gb still showing 12gb in bios slot c1 is showing abnormal ive updated to latest bios cleared cmos and no change im currently using slots 1,3,6,8 is it possible to use slots 2,4,5,7 as i have tried and will not boot just get alarm on start up.