hey biys,

Urgent...pls help...

After I bought a new power supply, my pc can't recognize USB device any more and i have installed windows 8 on my pc two months ago. with my own experience, i think my motherboiard is fired.

for this problem, can you come up with more suggestions? of course, if you can offer some solutions is much better.

many thanks in advance.

Motherboard? Are you sure you have updated the driver for your Windows 8?

If you can make sure it is the problem of your motherboard, you have to take the computer to the after-sale service for help.