HELP-Inserted Wires wrong way on mobo usb controller

By hixxy
Dec 27, 2005
  1. Hey All,

    I was wondering if someone could please help me out with a problem i have.

    Recently i installed a new case fan and to fit it in i had to remove the usb wires going to the montherboard so i could fit it in as they was in the way.

    So when putting the wires back in to the motherboard usb controller, i made a foolish mistake of entering them the wrong way round. On my motherboard the

    wires should of been places in this order (as shown below).

    5v / - / + / Ground
    5v / - / + / Ground

    But instead I made the mistake and entered them wrong as shown below. (opposite from the correct way)

    Ground / + / - / 5v
    Ground / + / - / 5v

    After i switched the pc on and noticed my mouse wasnt working I turned it off and checked the wires to find out that i had made the mistake of inserting

    them the wrong way.

    So i inserted the wires correctly and turned on the pc. My usb optical mouse was not working and wasnt lit up(i tried it in all of the usb ports). So I

    thought i would try another usb devise to see if that worked, so i tried a little usb light(one of them small lights attached to wire that clips on desks).

    The usb desk light worked so this left me thinking that wrongfully inserting the usb wires to mobo must of broke my mouse. I tried my mouse also in the ps2

    port with a usb>ps2 converter, This resulted in the mouse optical light lighting up but still it didnt respond to movement.

    also on boot up my pc sounds like a fan is going faster then slower then faster then slower but eventually a couple of mins after bootup it sounds like it

    goes to a more average same speed (I dont know if this is problem is from the issue stated above. if it is then can anyone giv any info on this?)

    So the next step i took was to test if my mouse worked at a friends house. The mouse worked fine...

    So then i borrowed my friends mouse to try at home on my pc. The mouse was 1 of those minature sized laptop mouse. Strangely enough this worked.. (could

    this be because it requires less usb power as its made for laptops?)

    I have been doing some reading on the web and i do realise i could of shorted my usb controller on the mobo. But that is basically all the info i could find

    about this topic. Now this leaves me with a few questions in my head i need to ask.

    firstly, How do i check if the usb compartment of my mobo is damaged? And if its damaged then how do i find out the scale of the damage?

    Could i have damaged any other components in my pc?

    Is it safe to keep using my pc at this current time? and if yes,is it in no danger of damaging other pc components that asnt been damaged already in the

    near future?

    I only built this pc 1-2 months back so i am hoping and praying that the damage is fixable (if damaged) Or on the otherhand not gona cost alot of expenses

    to get it fixed.

    Thanks in advance for your time.

    Your help is much appreciated.

    Greetz hix
  2. iss

    iss TechSpot Chancellor Posts: 1,994

    connecting a usb device to a uab port that is wired incorrectly can and usually does reult in breaking the USB device particularly mice and flash drives. it can also damge the usb port itself. your mouse is probably toast and even if it could be fixed it would cost more to do so then it would simply to buy a new mouse.

    if you need more usb ports then you best option is probably to invest in a Usb 2.0 PCI card.
  3. hixxy

    hixxy TS Rookie Topic Starter

    i think u misread my post m8. i havent plugged the mouse in the usb port incorrectly. What i have done is plug the motherboard wires coming from the usb port incorrectly
  4. iss

    iss TechSpot Chancellor Posts: 1,994

    Actually I think you missed mine

  5. netholio

    netholio TS Rookie

    Your USB mouse worked fine in your friends computer.....your friends mouse works fine on yours. (Also usb?)

    It may be that during bootup that the driver for your specific Mouse was damaged/disabled.

    Try booting in with your mouse plugged in,
    use the "windows key" to bring up the start options,
    using the TAB and arrow keys, open control panel,
    then open system, then tab and open device manager.
    Arrow over to Hardware, TAB to Device manager, arrow down to mice, then tab to remove.
    Reboot once the mouse is removed - windows will reinstall the driver needed and you should be good-to-go. - if not, get a new mouse, since you know the port works well enough for a different mouse to work.

    Hope this helps - My daughters system had a similar event, the usb ports on her case were crap and killed her motherboard completly.
  6. hixxy

    hixxy TS Rookie Topic Starter

    thanks for your reply m8.

    I have recently come to find out that infact my mouse does not work on my friends pc. (i duno why he told me it did but i tried it on a other friends pc and it didnt work).

    and yes my friends usb mouse works on my pc So i am going to buy a new mouse and see if that works as im thinking that it as just destroyed my mouse and not my usb ports. If the new mouse doesnt work i will try your solution. But im guessing that its my mouse only that is f**ked.

    I will update the thread and let u know how it goes once i try the new mouse i order.

    Thanks v much for your help.
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