USB device has exceeded the power limit

[Guest]

hmmmm ... I read all the posts here and learned a few things (400a vs 500a) and etc. I have disconnected EVERYTHING that is USB, rebooted and STILL get the freaking message. Now what?

 

[GhislainG]

If any, did you also disconnect case USB cables? Under Device Manager, Universal Serial Bus controllers, do you see a USB Root HUB (Power tab) that has a total requirement exceeding 500 mA?

 

[Devastator_uk]

The official limitation is 500mA, although some PCs these days will happily stretch to like 600mA (but others won't). I had major problems about 10-12 years ago with a USB modem that wanted 700mA.

You must still have something in USB, do you have an internal memory card reader? what about keyboard/mouse?