I recently picked up some more ram. I switched out all my old ram 16gb ( 4x4gb sticks) and replaced it with 32gb (4x8gb sticks) my comp is now telling me I have 32gb but only 16gb is usable. I went into bios to see if I can change anything, but I can't change any ram settings whatsoever. I also noticed it's telling me I'm at 1333mhz when my new ram is 1866mhz. I'd like to have all 32gb usable and at 1866mhz speed. Any help would be appreciated. My mobo is asus p8h77 pro which says it can take 32gb at 2200mhz speed max.