what imac do you have? If it's an older one, it probably doesn't have the added power that apple added to later models. Time to upgrade?
Its the 2009 model. I unplugged everything and rebooted it and now just one cable does it, looks like I got a bad cable The bad cable wont work on my macbook pro either, its a 2012What iMac do you have? If it's an older one, it probably doesn't have the added power that Apple added to later models. Time to upgrade?
Same cable acts that way on my 2012 MacBook Air.They started adding more power to the USB ports after the iPad. Yours unfortunately isn't included in there. So with your other devices connected, it is drawing too much power. You don't have a bad cable.
Same cable acts that way on my 2013 MacBook Air.
Don't you mean 2012?