Originally Posted by Am*
Please correct me if I'm wrong, but the last time I checked, SATA drives should only take power from the 12v rail (I thought 5v rail was only used for powering mobo components, like RAM?). Why or how would a hard drive take power from the 5v rail?
They have always had both 12V and 5V components.
12V is for the motor, 5V for the other stuff I think.