USB Ports not providing enough power?

Hey guys, hopefully someone can help me out here...

Up until a few days ago I was able to plug in anything to my computer via usb and had no problems. the last few days though anytime I plug in my ipod touch it consistently cycles through connecting and then disconnecting.

Ive read that this is a problem with my usb ports not providing enough power?

My ipod connected fine before though so it must have been something that changed in the system right?

im not sure how I would go about fixing this or even where to start to look

any help would be greatly appreciated!

thanks in advance!
3 answers Last reply
More about ports providing power
  1. Are you having problems with other devices or only the ipod.
    Try the ipod in another computer first to rule it out as the problem.
  2. ^+1

    If it works in a 2nd computer and not this one, then:
    USB1/2 have a current limit of 0.5Amps (only 2.5 Watts available). This current limiting circuit could have been damaged and now is going into current limiting at a lower current.

    Normally this problem is hardware assosicated and not user repairable.

    The new USB standard will up this from 0.5Amps to I believe 1.8Amps.
  3. Do any other USB devices function currently (I.E Keyboard, Mouse, etc)?

    Microsoft Windows Client Team
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