My friend just got the Asus z170 sabertooth motherboard and he is kind of confused when he powers off his whole system there is a LED light on the bottom right of the motherboard he said its labeled "power" so he is wondering why if all the power is off to his pc including his mouse and keyboard but that one light on the motherboard stays on. Is there always some passive amount of energy going through the motherboard? Or is this specifically just this motherboard? Thank you for your time any info helps.
Side question he also notices that this motherboard a tad "slow" compared to his old motherboard the Asus z170-A. Which includes boot times, opening and closing applications, even in some games he notices some fps drops or pix elation (ex, PlayerUnknown Battleground). His storage stayed the same its a 1tb hard drive, so does switching motherboards sometimes affects "responsiveness"? Again thank you for any information.