Question about Intel Motherboard

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Problem yet not solved i.e usb not detected on any port and without usb installed, an unknown device is indicate,

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Is the USB showing yellow mark on Device Manager entries. When you connect any device to USB does it show any device??

If not, then it might be the USB chips failure on your MoBo and need to replace.

Otherwise, go to Intel support site and download all the updated drivers for your MoBo.

http://downloadcenter.intel.com/

Posted on Feb 24, 2009

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"device unknown" on every USB port


Check that the ports work OK with another device - a printer for instance. They are pretty tolerant things when it comes to connectivity. If no joy there, go into "Device Manager" (I assume we are talking about Windows) and look in "Universal Serial Bus controllers" (at the bottom of the list) and see if there are any conflicts or absence of controllers. If so you could try to get Windows to fix itself by booting up with the Windows disk in a drive and following the onscreen instructions to repair the installation.
Do you use USB for your keyboard or mouse? Do they work? Or a joystick or game controller?
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You could try a PCI (or PCIe) board with additional USB ports. Not the ones that plug into the internal USB headers (if the M/B is broken they probably won't work either).
That's all I can think of without seeing the PC myself.
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hello allan213

my name is ausi.

is it on all usb ports only one of them if it is in only one of them then the message you getting generaly means one of thw follwng.

1- if it is in only one of the ports then try it with a different device as well to see if it is the actual port or not.

2- the device you have plugged in needs to have drivers installed. normally should have been supplied with it.

3- the device you plugging in is faulty and the system can not access it.

4- the system usb ports are overloaded. (too many usb devices connected simultaneously)

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if *********** board is in warranty 
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