no it doesnt work like that, if the MB is powered down into hibernate, hybrid or sleep, the MB lights always stay on, these modes still apply power to the USBs with whichever setting it is supposed to be in the BIOS.
You do want the MB lights on while in hibernate, hybrid, or sleep modes. Its like having a problem indicator. You wouldnt turn off your anti-virus when you think you might actually have a virus.
SpeedFan controls fans and temps, once you learn how to configure it properly. :cool: