Power Surge on Hub Port

Tissa · 01-21-2006, 01:57 PM

Quote:

A USB device has exceeded the power limits of its hub port. For assistance in solving this problem, click this message.

Does anyone get this message when trying to connect their pocket pc to windows xp? I've searched around other forums and this seems to be a common problem, but I still haven't found any solid solution?

Thanks,
Steve

Bob Russell · 01-21-2006, 03:49 PM

I'm not knowledgeable about this, but have read some articles that talk about how in general there is a limit to the power that you can draw from a usb hub. So, for example, if you have multiple usb ports on the back of your pc, they are probably on the same power quota. Whatever unpowered usb devices you have are drawing all their power via usb, and together they may be too much. I guess PPC devices take a lot?

Have you tried unplugging any other connected usb devices to see if the error still occurs?

paulkbiba · 01-21-2006, 11:53 PM

You don't say whether you are plugging the unit directly into your PC or into an external hub. If you are plugging into an external hub you might want to replace your hub with one that has its own power supply. They run about $20 to $30 and have a little transformer that plugs into the hub to power it, as opposed to the hub getting its power from the PC. I would suspect this will cure your problem.

Tissa · 01-22-2006, 05:19 AM

The computer that I'm having this problem with is a laptop, Dell C840, running XP. I can activesync with my desktop pc and have no problems there, just having problems with the laptop. I read other people having this problem in different forums, though the posts there are quite old. One in particular is here , if you'd like to look. Only thing is that I'm having this problem only with the iPAQ and not with any other usb device. So it's highly possible that the device is just demanding too much energy.

Quote:

You don't say whether you are plugging the unit directly into your PC or into an external hub.

Directly into the laptop. It has only two usb ports on the back.

Quote:

Have you tried unplugging any other connected usb devices to see if the error still occurs?

No other usb devices to unplug.

edit: Probably the problem is that the ppc draws too much energy from the usb port. On the ppc, under settings-power-usb charging, there is an option box for fast charging or slow charging. Having changed to slow charging I don't have the power surge problem anymore! Makes sense.

Thanks,
Steve

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01-21-2006, 03:49 PM	#2
Bob Russell Recovering Gadget Addict Posts: 5,381 Karma: 676161 Join Date: May 2004 Location: Pittsburgh, PA Device: iPad	I'm not knowledgeable about this, but have read some articles that talk about how in general there is a limit to the power that you can draw from a usb hub. So, for example, if you have multiple usb ports on the back of your pc, they are probably on the same power quota. Whatever unpowered usb devices you have are drawing all their power via usb, and together they may be too much. I guess PPC devices take a lot? Have you tried unplugging any other connected usb devices to see if the error still occurs?

01-21-2006, 11:53 PM	#3
paulkbiba Connoisseur Posts: 84 Karma: 45 Join Date: Aug 2005 Location: United States Device: Nokia e61i, iPhone	You don't say whether you are plugging the unit directly into your PC or into an external hub. If you are plugging into an external hub you might want to replace your hub with one that has its own power supply. They run about $20 to $30 and have a little transformer that plugs into the hub to power it, as opposed to the hub getting its power from the PC. I would suspect this will cure your problem.

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