my imac always complains about usb port using to much power and the window pops up like every 5 seconds
please help
elvis007
iMac, Mac OS X (10.6.8)
Something on one the USB ports is drawing too much power from the system supplied power.
Whatever the USB device is, if it has its own power you can plug into a wall power socket, you need to do so.
What USB device are you plugging in? Does it have it's own power supply? If so, use it.
i dont think my keyboard needs external power 😕
If the keyboard is the only USB device connected when you get the error something else is going on. If a PRAM zap does not stop the error warning, you will need to take a trip to your local Apple Store or an AASP. If you have AppleCare, call them first.
Another thing you can try is to run Apple's Hardware Test from system CD #1 (the one that originally came w/your computer).
Get a powered USB hub, the type of hub that gets its power from a wall outlet. Anything plugged into the hub gets power from the hub, not the Mac. This is the only viable long term solution for connecting usb devices. (The hub connected to my Mini has a printer, a scanner, two cameras, a key board conneccted, and never a peep about an under powered usb port.)
Hubs come in all sizes.
I had the same thing happend to me. Ended up something was wrong with the particular Lightning to USB cable I using. Try another USB cable.
my imac always complains about usb using to much power
