Okay, so I have a Samsung ATIV Book 5 NP540U4E-K01AU and, a relatively common problem with the BIOS, that the system fan doesn't work. This isn't a hardware issue but a software one, as I have seen many with this issue after updating BIOS. There is a way to downgrade the BIOS to fix it, but unfortunately it didn't work for me. Anyways, I want to directly power the fan, so it's on whenever I connect the power. I have many useless usb cords so I was thinking of connecting that directly to my fan so I can plug it in when I want to start my system. My laptop allows me to use it without the fan, as it's an ultrabook, but after using it a while, it gets a bit hot and my CPU temps can get high so yeah. I want the fan to run all the time directly using a usb cable. Can anyone help me out as in how to connect it. I'm a noob so yeah .