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USB Ports Not Working

Discussion in 'Hardware' started by pptdgc, Oct 21, 2009.

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  1. pptdgc

    pptdgc Thread Starter

    Joined:
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    I have 4 USB ports on the back of my PC and 2 on the top. They have all stopped working.

    I noticed this when my USB mouse stopped working. I tried the mouse in all of the ports and it didn't work in any. I then noticed that the external hard drives that I had plugged in did also not work - they do seem to power on but the PC does not recognize them.

    I have been able to get the PC working by plugging in the (non USB) type of mouse but can't seem to get the USB ports working.

    I am running Windows XP Pro.

    Any ideas?
     
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  3. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
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    whats the make and model of PC?

    goto device manager (assuming XP)
    start
    control panel
    system
    hardware tab
    device manager button
    on the list
    Universal Serial Bus Controllers
    click on the + sign
    are the USB listed and ? ! or X
     
  4. pptdgc

    pptdgc Thread Starter

    Joined:
    Sep 29, 2007
    Messages:
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    Custom Build:-

    ASUS P4c800-E deluxe motherboard
    Pentium(R) 4 CPU 3.20GHz
    1 GB RAM
    Running Windows XP Pro

    I checked under Serial Bus Controllers in Device Manager and there is...

    Intel(R) 82801EB Enhanced Host Controller -24DD
    Standard Universal PCI to USB Host Controller (5 Times)
    USB Root Hub (5 Times)

    There are no !, ? , or X next to any of them.

    Thanks
     
  5. etaf

    etaf Moderator

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    custom built
    Did you put in a seperare USB card or are these all on the Motherboard ?

    a couple of suggestions
    Did this happen after a windows update
    - can you restore the PC to before the problem started
    >start>programs>accessories>system tools>system restore
    choose a date before the problem

    --------
    also
    Right Click on USB Root Hub
    Properties
    Power Mangement Tab
    Make sure the allow computer to turn of this device is not checked

    --------------
    Check the bios still has them enabled

    ------------
    device manager
    try updating the drivers

    -------------------
    You could try removing each one from device manager and then rebooting and letting windows find them again and re-install
     
  6. pptdgc

    pptdgc Thread Starter

    Joined:
    Sep 29, 2007
    Messages:
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    Did you put in a separate USB card or are these all on the Motherboard? There is no separate USB card. There are 4 ports at the back which I assume are part of the motherboard and 2 built in to the case - its a Wave Master - Cooler Master.

    A couple of suggestions
    Did this happen after a windows update
    - can you restore the PC to before the problem started
    >start>programs>accessories>system tools>system restore
    choose a date before the problem
    I tried restoring to a few weeks ago but it said no changes have been made to the system in this time so it couldn't restore. The problem only occurred yesterday

    --------
    also
    Right Click on USB Root Hub
    Properties
    Power Mangement Tab
    Make sure the allow computer to turn of this device is not checked
    I unticked these boxes and restarted but have the same problem

    --------------
    Check the bios still has them enabled
    I went into USB Config in the BIOS. It says:
    USB Devices Enabled: None
    USB Function [8 USB Ports]
    Legacy USB Support [Auto]
    USB 2.0 Controller [Enabled]
    USB 2.0 Controller Mode [High Speed]


    ------------
    device manager
    try updating the drivers
    Not sure how to do this - will be easier to try removing each and re-booting first?

    -------------------
    You could try removing each one from device manager and then rebooting and letting windows find them again and re-installDo I just right click and uninstall?

    Thanks for the help
     
  7. etaf

    etaf Moderator

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    ------------
    device manager
    try updating the drivers
    Not sure how to do this - will be easier to try removing each and re-booting first?

    right click - you get an option to update driver


    -------------------
    You could try removing each one from device manager and then rebooting and letting windows find them again and re-installDo I just right click and uninstall?

    right click - you get an option to uninstall
     
  8. pptdgc

    pptdgc Thread Starter

    Joined:
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    Messages:
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    I tried uninstalling each of the 'USB Root Hubs' listed and re-started. When it re-started they were there again in Device Manager but the problem still exists.

    I tried right-clicking 'Update Driver'. It started the Wizard and asked me to install the installation CD. I inserted the disc that came with the motherboard and it searched and said..

    "The Wizard could not find a better match for your hardware than the software you currently have installed"

    Thanks
     
  9. etaf

    etaf Moderator

    Joined:
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    Messages:
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    well i'm out ideas - with one exception, which I need to research
    You can boot the PC using a CD to run a virtual OS something like LiveCD, now this should run the software and detect the hardware on the machine - so if something like liveCD makes the USB ports live and working, then we know its a windows issue
    BUT i have never done this and its just an idea - that maybe very flawed -
    googling now

    EDIT
    just read this
    http://www.howtogeek.com/howto/wind...ackup-files-from-your-dead-windows-computer/#
    interesting it talks about backing up a failed disk and that plugging an external harddrive into the USB - will place an icon on the desktop seen from the CD " Backing Up to External USB "
    I guess that would prove the USB is working
    BUT I have NEVER tried this - just an idea as I'm out of them now

    EDIT
    Thought i would download and try - but at 700MB - it will be a while :) as I'm on a slow link anyway
     
  10. Dlaw

    Dlaw

    Joined:
    Apr 5, 2009
    Messages:
    28
    Which service pack of Windows are you on? start > control panel > system

    Removing the USB root hubs was my first guess as well. I would then try a Windows Update and install any necessary updates. If that does not fix the issue, I would run the System File Checker (Start > Run > sfc /scannow). Reboot afterwards and cross your fingers.
     
  11. pptdgc

    pptdgc Thread Starter

    Joined:
    Sep 29, 2007
    Messages:
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    Etaf - Sounds like its worth a try. I will try downloading the file and see if it works.

    Dlaw - I'm on Service Pack 3. I made sure I downloaded all available updates but that didn't fix the issue. I also tried a system file checker but that didn't work either :-(

    Thanks for the suggestions
     
  12. bigbear

    bigbear

    Joined:
    Apr 27, 2004
    Messages:
    4,719
    Try this fix by JohnWill

    Create a file with NOTEPAD containing the following lines and save it as FIX.REG
    -------------------------- Use text after this line --------------------------------
    REGEDIT4

    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment]

    "DEVMGR_SHOW_NONPRESENT_DEVICES"="1"
    -------------------------- Use text before this line --------------------------------

    Double click on FIX.REG and say yes to the Merge Into Registry question.

    Unplug ALL USB devices.
    Open Device Manager.
    View, Show Hidden Devices.
    Uninstall all devices under USB Controllers.
    Uninstall all devices under Disk Drives that you know are not present.
    Uninstall all devices under Storage Volumes. Say no to any reboot prompts until you are finished. Also, if a Storage Volume doesn't uninstall, ignore it and move to the next one.
    If you have a yellow ? with unknown devices, uninstall all of the entries there as well.

    When this is done, reboot TWICE.

    Reconnect the USB devices and see if they're recognized properly.

    NOTE: If you have a USB keyboard and/or mouse, you'll have to modify the instructions and leave enough parts for those to function. I don't have one yet, so I haven't had time to modify the instructions.
    __________________
     
  13. pptdgc

    pptdgc Thread Starter

    Joined:
    Sep 29, 2007
    Messages:
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    Thanks - I gave it a try but still no good. :-(
     
  14. win2kpro

    win2kpro

    Joined:
    Jul 19, 2005
    Messages:
    11,670
    Access BIOS and in BIOS there should be a tab called Hardware Monitor or something like that. See how much voltage it shows on the +5v rail.
     
  15. pptdgc

    pptdgc Thread Starter

    Joined:
    Sep 29, 2007
    Messages:
    53
    Voltages are showing as follows:

    VCORE Voltage [1.392V]
    3.3V Voltage [3.312V]
    5V Voltage [4.999V]
    12V Voltage [11.795]

    These are all changing slightly but nothing significant.
     
  16. win2kpro

    win2kpro

    Joined:
    Jul 19, 2005
    Messages:
    11,670
    Remove the removable side from the machine, and take a bright light and carefully examine all of the capacitors you see on the motherboard. See if any have swollen or bulging tops or if any are leaking a fluid.

    Look carefully, all of the capacitors should be perfectly flat on top.
     
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