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Front USB ports don't work. Uninstalled SM Bus Controller.

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11 replies

by bosphorus

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My USB ports were working. Suddenly a yellow question mark appeared under SM Bus Controller.
I couldn't find an update and I accidentally uninstalled it. I have restored the computer to early stages but SM Bus controller still doesn't appear where it should be.

I use Vista Premium and my chipset is Sis 648 (they don't have the relevant update for the driver)

I tried my original drivers CD but no luck.

I would appreciate your help to resolve this problem because it's driving me nuts.

11 replies

by Former member

And locate the front USB cable plug (usually blue in colour) and disconnect them, if you have any other usb ports on your motherboard then place this front usb cable to this socket. Reboot your computer to see if comes up with "found new hardware", hopefully this will fix the problem. If possible look at your motherboard manual for the usb plugs and sockets.

Please post back if you have any more problems or questions.

by bosphorus

Hi,
Thanks very much for the reply.

I will try this and update the post if it's successful.

thanks again

by oh smeg

Go to their Web Site and download the USB Drivers for your M'Board and Vista.

Depending on how old your M'Board is there may not be suitable Vista Drivers contained on the M'Board CD as many Vista Drivers are still in the Beta Testing stage now so if the M'Board is 8 months old the availability of Vista drivers was far less than what it is now. That is 8 months from Date of Manufacture not the date that you bought it from a supplier.

Col

by bosphorus

Hi,
Thanks for the reply.

The mother board is made by Elit ECS.

I will try this option.

thanks again

by oh smeg

http://tinyurl.com/yr5w2w

This is the ECS Wed Site download page so all you need do is enter the Model Number of the M'Board, Socket Type and you can then download the required driver.

Col

by bosphorus

Hi there,
I will try this when I go back to my computer today.
I will let this post know if it's worked.
Thank you very much again

by bosphorus

Hi there,
I found out that the motherboard is ECS
L4S8A2 and they don't have an update for the usb drivers.

I looked at the usb pins inside the motherboard and there isn't any alternative pin sockets to plug them.

so, I don't know what to do with this.

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