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USB Device Error

By deviationpoint ·
Running an Athlon 1.2 Ghz with Windows 98SE and 512 MB RAM. Using an external USB modem (Zoom 56K) to connect to the internet. When using modem, the USB ports will shut off at random time intervals. Either while dialing, or after being connected for a few minutes. Both USB ports shut off, and this happens regardless of which port it plugs into. Other USB devices do not cause this problem. Suggestions?

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USB Device Error

by deviationpoint In reply to USB Device Error

Point value changed by question poster.

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USB Device Error

by TheChas In reply to USB Device Error

First, check for new drivers for both the modem and the motherboard.
Also, disable any unused ports on your PC.

Both ATX panel ports are on the same USB hub. If you have additional USB ports on your MB, you can try connecting to them (you will need a special cable) to see if it is a hub issue.

If that doesn't help, try reducing your amount of ram. Many people have had problems with more than 511MB of ram on W98.
It is possible to have too much memory. With extra memory, Windows can get confused and lose track of loaded drivers and software.

I limit my W98 boxes to 384MB.

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USB Device Error

by TheChas In reply to USB Device Error

Had another thought.
Does the USB modem have a connector for an external power supply? Or, are you using a non-powered external USB hub?

It is possible that the USB ports are not supplying enough power for the modem.
If possible, either add anexternal supply for the modem, or connect to it through a powered USB hub.

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USB Device Error

by deviationpoint In reply to USB Device Error

Both the modem and the motherboard are new and have up to date drivers. All unused ports are disabled, with the exception of my primary serial port. I have additional USB ports, but they don't work (they are on the front and are not connected). And it is a non powered USB external modem. It is powered by the port. As far as I know the internal hub provides adequate power to the modem.

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USB Device Error

by TimTheToolMan In reply to USB Device Error

Hi,

Just to get a bit of a better idea of whats going on here... When you say the USB ports "shut off", what is the actual message you get?

Cheers,
Tim.

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USB Device Error

by deviationpoint In reply to USB Device Error

There is no message from the software. The USB port just stops sending and receiving signals. The lights go off on the modem, and the computer keeps going like nothing happened. As far as I can tell, there is no message.

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USB Device Error

by TimTheToolMan In reply to USB Device Error

Hi,

The lights go out? Doesn't happen for other USB devices?

In that case, I'd be suspecting the modem itself - rather than the USB ports.

If you have another USB device (preferably powered by the USB port), you could plug both in at the same time, see the modem stop but the other device keep going and verify that the power isn't being lost at the USB port.

Also try the modem in another machine and see if you get the same result.

If its new and under warranty...

Cheers,
Tim.

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USB Device Error

by deviationpoint In reply to USB Device Error

I actually tried that, and the other USB devices stop working at the same time. It is new, but there is no warrenty (from now on...i may buy one)

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USB Device Error

by a4pat In reply to USB Device Error

Some motherboard with VIA KT133 chipsets had problems with their USB port when streaming information (modems, web cams, etc). The best solution in these cases was to buy an PCI to USB card and use it instead of the onboard one.
If you bought your card around a year ago, you may have that chipset.
Remember to install the latest VIA 4-in-1 drivers also.

Good luck

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USB Device Error

by deviationpoint In reply to USB Device Error

This did the trick!! Thank you!!

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