posted on Jan, 24 2014 @ 05:59 PM
reply to post by OrphanApology
hit windows button + R
type or copy "mmc devmgmt.msc" without brackets and hit enter
look if everything is ok (no red/yellow icons)
Shut down PC.
Unplug power supply.
Make sure you switch off the power button, too, if it has one.
Unplug power supply from mainboard (ATX plug, the big one is enough)
Wait at least 20 seconds.
Plug in ATX plug.
Plug in power supply.
Turn power supply on.
If this does not help:
Do you have a voltage meter / multimeter with you at the moment? If so, cut any old usb cable, remove isolation of the wires and make sure they don´t
touch. Find out the most left and most right pin wires (resistance meter mode), plug the cable in and measure in direct current mode, there should be
around 5V on those two. Now you know there is still voltage on the bus.
If that´s the case and usb still does not work, your bus driver chip is damaged, you probably need a new mainboard. If there is no voltage on the
bus, you could, like void hawk already said, power the USB bus over extern OR link your cut cable to the red + black wires of the molex plug of the
power supply and plug it into an USB hub. Then, maybe, if your USB driver chip (datalink) is not damaged, you may have a chance.
edit on 24-1-2014 by verschickter because: spelling, WOT split