pc problem now usb ports dont work

sare^baw's · 26 Feb 2007 at 14:45

hi there

yesterday my pc went on the blink, all i was doing at the time was copying files from one drive to another.

my monitor went blank and i could not switch the pc off using the front power button, i had to switch off at the back, i switched it on a few times and still nothing, there was a slight smell as if something had overheat but it was only slight.

after half an hour i tried again and to my surprise it started ok and i had a picture on my monitor however my usb mouse and keyboard were not working and my usb wireless network adapter was not working. my usb ports are onboard 4 rear and 2 front.

im using an old mouse and keyboard just now and connected to my modem with a network cable but my usb ports are not working. I checked the bios settings and the usb controllers are still enabled and usb mouse and keyboard are still enabled. in device manager all the usb controllers look ok ie no conflicts.

can anyone help me here to find out what is wrong and possibly fix this or does it sound as if my motherboard has a fault with cant be fixed.

sare^baw's · 1 Mar 2007 at 11:40

any suggestions :cool:

kmistry · 1 Mar 2007 at 11:55

My first port of call would be your PSU, do you have another you can try ?

sare^baw's · 1 Mar 2007 at 12:06

kmistry said:
My first port of call would be your PSU, do you have another you can try ?

i have a 350w enermax psu spare, do you think the psu could have caused the problem, would replacing it solve the problem or is the damage permanent, should i need to get a usb pci card

i was thinking of a new seasonic 450w psu as i want a quieter psu as its a htpc

sare^baw's · 1 Mar 2007 at 13:41

i have tried deleting the usb controllers in device manager and then rebooting, it installs all the drivers but they still dont work .

i have unplugged the front usb cables and reconnected them but still no joy

i have cleared the cmos and still no result

i plug my usb flash memory stick into a usb port and the red light comes on so there is power but nothing is working when plugged in

BaDBoY16 · 1 Mar 2007 at 13:54

Tried taking everything out gfx card, etc etc are all your usb devices working try them on another pc, it could be that one of your usb devices has broke and is making none of your other usb devices work, if its not that then maybe something on your mobo has fried