When CPU miner starts I noticed that it reported "single mode", so i assumed it was in scrypt only, aside from that I am not sure how to determine which cores are active... but yes they are running at 170 watts so I will definitely investigate your theory regarding the active sha core further... I am not familiar with what you mean by "switching to a cgminer fork", could you expand on this, or maybe direct me to where i could find more detail on how to achieve this? Again, thank you!!