Well recently, my pc's usb ports are working very fine.
suddenly, my co-workers here just told me that they just stop working.
all usb device are not detected to all usb ports.
i've looked every possiblities why this problem happened.
ive checked the bios setup and it's ok everything is enabled,
drivers are also properly installed.
i even tested it last time by going to regedt32 -> HKEY_LOCAL_MACHINESYSTEMCURRENTCONTROLSETENUMUSB
i changed the permission into full access and
i deleted the ROOT_HUB and ROOT_HUB20 and restarted the pc...
when it boots up, those deleted values were automatically installed,
guess the system traced it out that they are missing and needed them to install again...
but the problem is that usb devices aren't yet working....
that means usb ports' drivers were installed and detected by any usb removable device are not? What seems to be the problem bro?
thanks in advance... hope you could help me out with this...
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try changing the settings in BIOS to high-speed USB speed support. Also physically clean the port of all dust(it happened to me and after washing it pure alcohol, the usb port started working)....sodeep
The USB ports have gone bad. Just because they show up in device manager as being recognized does not mean they are working correctly. They are controlled by chips onthe motherboard and if one of those chips has gone bad, then they just won't work. The cheapest solution would be to purchase a USB card and install it, bypassing the onboard ports. Thanks and please take a moment to give this solution a rating of fixya. Thanks! :c)
All the USB ports were working before he installed SP3 and rebooted. After that only the mouse/keyboard ports worked. Same thing happened to me. No other changes were made, so something added/change by SP3 is the culprit.
Questions is...what did SP3 do to break USB and how to fix it?
Slim, Other than saying well it was a good couple years for the board lets just verify: Have you tried a different keyboard? Check device manager and see if you uninstall the keyboard and then reinstall it.
Or have you recently installed any new devices that may have taken the resources away from the keyboard plug? If not get a usb keyboard and make sure you info is backed up...just in case.