I've had a strange occurrence here with my front USB ports. They used to work just fine... all of sudden they just stopped working or detecting anything. Unfortunately, I don't recall anything that I changed that would have caused this to happen.
Even after a re-install of Windows 7 (which I performed not too long ago), the problem still exists.
All back USB ports work fine.
I am using:
Motherboard: Gigabyte GA-770TA-UD3
Windows 7 Ultimate 64-bit
I have also just installed the latest 3.0 USB drivers (previously had 2.0) from Gigabyte. And I have tried uninstalling the USB ports and allowing windows to reinstall them. No change.
Any advice on what else I should check is greatly appreciated
Control panel > power options > change plan settings(change the active one) > change advanced power settings > USB settings > disable
Control panel > device manager > universal serial bus controllers > go through the usb devices right clicking each one(probably just the "usb root hub" ones though), some will have a power management tab, uncheck "allow computer to turn off this device to save power"
Then reboot. However, as an aside, what caused this problem for me was increasing my graphics card voltage.
When my new Biostar motherboard was replaced (by me) I lost the front USB ports. I called Biostar techs and their answer was that the port itself was not 2.0 compliant. I don't completely understand how straight wire with no electronics cares but I have yet to get them to work and I would like to.