When you start up your computer, there should be a Fx button on your keyboard that you can press to head into your BIOS menu.
I notice you've previously started a thread about your BIOS and how you wanted to reset it in this thread (How can i reset the BIOS to default?
), so i assume you know which button to press to get there.
In your BIOS menu there should be an entry for USB power settings.. I don't know which ones specifically, for I do not have your machine, but it should be there...