* I've seen the topic with same name in hardware section, but it's a bit different issue I think. Hello, I'm facing this strange notification/ hardware error that says my usb devices are disabled. Also after error occurs 1 usb port (the one closer to headphone jack) stops working. I reseted PRAM and SMC, did a clean instal yesterday and got a good day without an error, but now it's back and even more annoying. I get the message even if nothings connected (externally), yet checking console gives me kernel: USB Notification: The hub "HubDevice" @ 0xfa100000 has reported an overcurrent condition. Port 3 has been disabled (0xfa130000). Checked USB section under system preferences gives me http://cl.ly/image/1L1b2L1p0z1q which makes me thinking that if webcam is taking 500mA from the hub and keyboard/trackpad 48mA than it's more than 500 which causes the error, but I might be wrong Is there any way to trouble shot if thats an hardware or software error without taking it to repair?