Not relating to GPU performance...Does enabling rebar block the OS from using rebar memory (size allocated or not) if the GPU isn't using it? Asking because I have 32GB memory (all shows up) with rebar enabled- no size set . However no matter what I'm doing my memory usage never has gone above 12GB. It goes up a little if I disable the page file completely, but some programs wont run with it disabled. My available system memory for the GPU in task monitor always shows 16GB whether rebar is enabled in the bios or not. I don't game much and would disable rebar if the OS would make better use of my installed memory.