Ok I feel kind of stupid for asking this but I'm having a brainfart. I'm trying to overclock a GTX 550Ti. I'm using MSI Afterburner, Furmark and GPU-z. When I open Afterburner the only options visible for adusting is Core Voltage, Voltage percent, Core clock, and fan speed. Shouldn't I be able to adjust the CUDA cores and shader speeds too, and if so why can't I?