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USB Drawing too much power?

B

briannag

macrumors newbie
Original poster
Jun 22, 2012
6
0
My phone charger broke, so I had been relying on a usb cord plugged into my mac with the ends chopped off to charge my phone.

It all went fine until a message saying:
USB Over Current Notice:
A USB device is currently drawing too much power. The hub that it is attached to will be deactivated.

I unplugged the USB, & tried to exit the window. But my mouse & keyboard, (anything plugged into a USB port wasn't working.)

I need to fix this, but I can't reset the PRAM without a keyboard or mouse. Please help.
 
I did that already, but once it powered back up, this showed up all over again.
mukj2c.jpg
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Razorhog said:
Hard reboot by holding in the power button for 6 seconds.
Click to expand...
 
That's the thing. I have no clue where the bluetooth memo comes from. THhe mouse has nothing to do with a bluetooth nor do we have one.
Razorhog said:
No idea on that then. Wouldn't the Bluetooth work even if your USB ports are fried?
Click to expand...
 
briannag said:
I'm not sure how to reset the PRAM without my keyboard/mouse working.
Click to expand...

You do it right when you turn the machine on.

http://support.apple.com/kb/HT1379?viewlocale=en_US&locale=en_US

Resetting PRAM and NVRAM
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
Your computer's PRAM and the NVRAM are reset to the default values. The clock settings may be reset to a default date on some models.
Click to expand...
 
briannag said:
Thanks. But it didn't work. Nothing in my USB ports are detected & my keyboard wasn't. Any other ideas? :confused::(
Click to expand...

What do you have connected to those ports? Unplug everything from them and just try with only the keyboard by itself plugged in. What Bluetooth accessory do you have plugged in that's throwing that message up?
 
briannag said:
<an unnecessarily large photo of the screen>
Click to expand...

Command+Shift+3 takes a screenshot, by the way ;)

The file saves to your desktop. Open it in Preview, click and drag to select the area of interest, press command-K to crop, then save it again. Go tools -> adjust size and resize it if it's too big.
 
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