My USB ports Using too much power with nothing plugged in.

So i have this macbook pro mid 2009 model. Whenever i boot the computer up, there's this message that comes up. USB ports must be shut off because its using too much power blah blah blah. Theres nothing plugged into them!

Everything works, camera and all that, but the USB ports.

Do i need to download anything to get them to working?

Is it with the logic board?

or idk what to do!

Please help!