I have 32gb of ram installed and all sticks are shown in bios. But in both bios and windows it only shows 16gb available and the weird thing is cou-z and NZXT's can software both show 32gb of ram installed. I am using the Asus z170a and 2 8gb Corsair vengeance and 2 8gb crucial sticks all are the same speed and both sets of ram show 16gb in windows on their own.