Newbie2009

I have noticed that half of my usb ports work, half don't. What could be the cause of this?
The ones that don't work for example, If I pluged in a 360 controller, the light would come on for a second, then gone. Windows detects nothing.

Never noticed this before as the ones I am using work fine. Checked bios etc, everything is enabled.

zalmancooled

1. The first step
The first step I took to fixing the USB port issue was to open the device manager, and remove everything under Universal Serial Bus controllers. To remove them, double click on each of the entries under this category and choose Driver from the tabs up the top. There are several buttons under this tab, one of them is Uninstall. Click this button - it will warn you that you are about to remove the device from your system. Click ok, as this is what you want to do. Repeat this with every entry under Universal Serial Bus controllers until they are all gone. Reboot your system, and windows will detect the new hardware and re-install the drivers. Under normal circumstances, this should be enough to get your USB ports working again.

2. Upgrading the BIOS
The next step I had to take was to upgrade the bios. This involves flashing the bios so it updates the instruction set in it. I can't help you with what file you will need to do this, but if you visit the manufacturers website for your system you will possibly find what the files are to use. I needed to download the file provided, extract it to a floppy disk, and reboot from the floppy. This was * supposed * to update the bios, however all my system did was hang at the command prompt, and did not launch into the program to update the bios. In this case, go to step three, otherwise read on.

To update the bios, once the system has booted from the floppy the disk launches into the program to update the bios. Just let it run and do it's stuff. Once it's finished, reboot your system then perform step one. Once this is done, your USB ports will hopefully work.

Hopefully this will work for you to fix your USBs and avoid a repair instal of the OS.

Let us know how it works out for you.

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Newbie2009

Cheers man, will give that a try.

Setzer

May sound silly but.... Make sure the USB headers on the mobo are connected to the USB ports on the front panel

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Newbie2009

Nah, the board has six connectors at the back, 3 work, 3 dont.