Console logs - AppleUSBEHCI error

Question

Hi guys,
first time posting on these forums, but i was looking today at my console and it showed continuously the following line:
10/06/2011 08:08:45          kernel          USBF:          471.185          AppleUSBEHCI[0x823b800]::Found a transaction past the completion deadline on bus 0xfa, timing out! (Addr: 12, EP: 1)
the frequency of these errors logs is c. 2 seconds apart.
tried to look for solutions on the internet, forums etc but none of the words i could find had any meaningful response around.
ah, did a system reinstall yesterday to wipe-out as many previous issues as possible.
thanks for your help

Answer 1

As the name of the module suggests, your Mac is having trouble with a USB bus or something attached to it.  What USB devices are currently attached to it?  Try disconnecting them.  You might also try running the diagnostics that came with your Mac.  If the diagnostics came on a separate disc, run them by holding down the "C" key while booting with that disc in the drive.  If you only have one "system restore" disc, hold down the "D" key while booting with that disc in the drive.