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BIOS suddenly fails to detect ANY USB devices GIGABYTE G41M-Combo

Tags:
  • BIOS
  • Motherboards
  • Devices
  • USB
  • Gigabyte
Last response: in Motherboards
May 24, 2014 10:07:51 PM

Hello,

I have a PC with GIGABYTE G41M-Combo motherboard. I have been using it for quite a while. Recently I had to go out of town for a week and I left the PC shutdown. But when I came back and tturned on the PC, it is not detecting my USB devices. I ma using a USB keyboard and mouse and it fails to detect either of them. So I could get to Windows password screen but could not get past it becuase I am unable to enter anything.

So I bought a PS/2 keyboard an plugged-it in. The BIOS detects it and I can now log into windows. Next I went into BIOS settings and reset everything to defaults. But it made no difference.

So here is the scenario.


    POST screen displays USB Controllers for 1.0 and 2.0 along with IRQ
    All USB ports are receign power. Ican charge my mobile phone or camera using the ports
    During booting, if I have a USB mass storage device plugged-in, BIOS tries to boot from it and displays erro (as the device is not bootable)
    However BIOS does not detect USB devices.
    USB Keyboard and mouse does not work - not even in Windows.
    USB mass torage devices are not detected in Windows either - eventhough they light up
    Windows does not make USB connected notification saounds anymore.


Addional info that may be relevant.
I also had a DSL router, whcih I connected though USB which was working fine. However now the router is not working. It is not even powering up. I opened it and found that it one of the chips is fried.

Is it possible that the USB controlelr chip on the motherboard is physically dmamged as a side-effect?

Should I get a new motherboard? OR can I rescue this one?


Thanks

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Best solution

a c 777 V Motherboard
May 24, 2014 11:04:53 PM

sounds like there was a lighting hit near your home and it beck feed into the cable modem and tool out your usb port on your mb. check your local weather see if there were any storms near you.
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May 24, 2014 11:06:58 PM

smorizio said:
sounds like there was a lighting hit near your home and it beck feed into the cable modem and tool out your usb port on your mb. check your local weather see if there were any storms near you.


Yes there was. And I believe thats why my router was fried. But does this mean my USB controller is also done for? How can I make sure?
Note that all my USB ports including front panel porst are malfunctioning.
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a c 777 V Motherboard
May 26, 2014 12:40:58 AM

all you can do is try booting off hirem boot cd mini xp or another boot cd if you can and see if the ports work. if not check that there turned on in the bios and try clearing the cmos. if they wont turn on or work right they been zapped.
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May 27, 2014 7:51:35 PM

smorizio said:
all you can do is try booting off hirem boot cd mini xp or another boot cd if you can and see if the ports work. if not check that there turned on in the bios and try clearing the cmos. if they wont turn on or work right they been zapped.


I had already tried that and it was not working. So its fair to assume that the USB controller is fried. I have ordered a PCI-E USB 3 Expansion card. I hope that will work

Thanks for the help

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