USB making pc shut down?

phil-k · 12 Aug 2011 at 21:01

been having problems with my pc shutting down and rebooting, so i have removed the battery to reset the bios and everything seemed ok at first.
I shut down the pc to move it back in place plugged my new Cyborg v7 keyboard in which has worked ok before. When the pc started all the lights on the keyboard were on and wouldnt switch off, so I shut down plugged the keyboard into another usb socket on the front of my case and all was well for a while, I went to adjust the lights and the pc shut down with the fans still going.
So is it the keyboard thats the problem or my usb ports.
I have now plugged in a basic usb keyboard to see if anything happens again

phil-k · 12 Aug 2011 at 21:21

perhaps it was not the keyboard after all, it just shut down again while playing BFBC2 but the pc seemed to still be running, so I have removed the graphics card and plugged the monitor into the onboard graphics to see what happens, perhaps its the motherboard itself that is the problem
After I restarted it after the shutdown I was just going into the bios and the screen went off

phil-k · 12 Aug 2011 at 21:46

that was a waste of time really cant do much with the onboard graphics, now tried putting the graphics card in the other slot, but the odd thing is that on one previous boot the keyboard was not recognised, a problem with the usb ports wouldnt shut down the graphics would it, I also got a rasping noise through my headphones when it shut down while playing, I dont know what to do next.
The graphics was was not under any great strain when it shut down

phil-k · 12 Aug 2011 at 23:40

Under System information/problem devices I have this message "usb\vid_0cf3&pid_3000\6&df2ee03&0&7 The drivers for this device are not installed" I dont know if this is anything to do with my problems
and under device manager there is /other devices/unkown devices, Location Port_#0007.Hub_#0004, i think its something to do with usb but I dont know what and it wont find any drivers for it

phil-k · 13 Aug 2011 at 00:15

with graphics card in second slot and old keyboard it seems ok,
next put the graphics card back in slot 1