USB Over Current Notice
Posted 15 August 2006 - 02:59 PM
"USB Over Current Notice. A USB device is currently drawing too much power. The hub it is attached to will be deactivated."
The only thing is no USB devices were attached or plugged into the MB when I switched on the MB.
Is anyone experiencing similar problems? What is causing this problem? Is there something inherently wrong with the MB? Any remedies? Thanks in advance for any help/suggestions.
Posted 16 August 2006 - 12:08 AM
Posted 16 August 2006 - 12:42 AM
If you did a reinstallation ( format & install ) and it still gives errors, I'd say it is a hardware fault.
You'll notice through the System Profiler that many of the internal components also use (a) USB channel(s)...
Apple Internal Keyboard / Trackpad ( 12Mbps / 500mA )
IR Receiver ( 12Mbps / 500mA )
Bluetooth HCI ( 12Mbps / 500mA )
Built-in iSight ( 480Mbps / 500mA )
So, either the USB bus is malfunctioning or one of those devices, would be my guess. I don't know if that means they each have their own USB bus...
Posted 16 August 2006 - 09:32 AM
Sounds like there is short of some sort (to state the problem in simple terms) causing excessive current draw internally. Such things are not usually common but at a very low frequency, anything is possible. If true, either they would solve the problem by testing and exchanging malfunctioning device(s) or the logic board itself, should the problem lie in with it.
And yes, difinitely insist that they remedy the situation either by fixing it or exchanging the machine!
Posted 16 August 2006 - 10:35 AM
Posted 16 August 2006 - 02:51 PM
PS - The MB is so new that I've not connected anything to its USB ports. And because it's so new, I've taken great care not to have food/drinks near the MB. Thanks again for all your help!
Posted 21 August 2006 - 12:08 AM
No matter what AppleCare says I'm willing to bet it's a hardware issue. I've had to deal with them as well and I was very satisfied with their service. Be persistent and they'll fix it.
Posted 22 August 2006 - 06:59 PM
Posted 29 August 2006 - 09:58 PM
Posted 09 October 2006 - 07:57 PM
Posted 21 October 2006 - 08:24 PM