USB ports not working after multiple crashes


  1. Posts : 61
    Windows Home Premium 64bit
       #1

    USB ports not working after multiple crashes


    Hello Sevenforums

    prologue:
    A problem recently arose whilst trying to get my desktop to BOOT properly. There is a problem with the Graphics card needing to be "wiggled and tensioned" into a "golden spot" where all PCI-e pins magically touch and connect, so that the system will run. Often when this happens, the system will then hang/freeze shortly after, because the card properly wasn't seated that well after all.

    Now able to consistently boot, i am now faced with the problem of not being able to use any of my USB ports. At the BIOS screen and system loadup screen, my mouse and keyboard will light up and work flawlessly.

    But when i get to the welcome screen, both devices will "switch off", but still receive power as indicated by a few LED's.
    i can use a standard PS/2 keyboard, though it should only serve to get my primary devices working with the system again.

    I wonder what could be the cause of this? Searching other forums i assume it's a Software/driver issue, but if that's the case, then i have no idea how to fix it

    Thank you in advance

    -Tegewaldt
      My Computer


  2. Posts : 1,025
    Linux Lite 3.2 x64; Windows 7, 8.1
       #2

    I suppose you need to reinstall the chipset driver. Go to Device Manager and see what it is, and download it before uninstalling the existing one.

    But my guess is the driver degradation is due to the graphics hardware problem. You are lucky you haven't fried the motherboard. I would probably try contact cleaner on the card, or a different card to isolate the problem.
      My Computer


  3. Posts : 61
    Windows Home Premium 64bit
    Thread Starter
       #3

    Could using a pci-e extension cable help solve the contact problem?
    Image here; http://www.buyincoins.com/images/sho...-cable-16x.jpg

    Also, from device manager how do I find out which driver and chipset i have/need?

    And thank you for your help and
    support!
      My Computer


  4. Posts : 5,656
    Windows 7 Ultimate x64 SP1
       #4

    Perhaps a System Restore to a date prior to the issue will help.
      My Computer


  5. Posts : 1,025
    Linux Lite 3.2 x64; Windows 7, 8.1
       #5

    Tegewaldt said:
    Could using a pci-e extension cable help solve the contact problem?
    Image here; http://www.buyincoins.com/images/sho...-cable-16x.jpg

    Also, from device manager how do I find out which driver and chipset i have/need?
    That would be weird, but you never know.

    System Restore is a good idea, worth trying first.

    Open DM and look for anything that looks like a chipset. If there's an onboard graphics driver you can uninstall it. Often the chipset will be part of it. Look on the manufacturer site for newer drivers. If there's nothing, you can uninstall related System devices and let them reinstall themselves on the next boot.
      My Computer


  6. Posts : 329
    W10 Pro x64, W7 Pro x64 in VMware
       #6

    re: after a freeze, USB mouse + KB working at boot but not when Windows has started - don't know if this will be of any use, but I had the same problem recently.

    I was experimenting with various (unsupported) Linux distros in VMware on Windows 7 host, and now and then the system would lock up - needing a hard reset. On restart after a freeze-up, mouse + KB were 'on' at boot but 'off' when Windows started. With no mouse or KB, this naturally meant another hard reset, which seemed to compound the problem. This puzzled me - I even managed to replicate the issue a few times.

    By trial and error, I discovered that after a freeze/USB problem, if instead of using the reset switch I powered off the box at the psu mains switch and pressed the front panel on switch to drain any residual power, then the pc restarted without the USB/mouse problem.

    I realise that hard resets, and flipping the mains switch is not good practice, but I got mouse + KB control back. Still a mystery.
      My Computer


  7. Posts : 5,656
    Windows 7 Ultimate x64 SP1
       #7

    Wasnotwas, good idea: I would try a CMOS reset in this case (should check motherboard manual).
      My Computer


 

  Related Discussions
Our Sites
Site Links
About Us
Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd
All times are GMT -5. The time now is 04:38.
Find Us