Question about Sony VAIO F540 Notebook

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Pci device missing making it impossible for sound to work

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  • mmukembu Jun 24, 2009

    Thanks ehsanullah for your support.
    However i had done exactly that with my computer and it didnt work.
    I am thinking of reformating the computer though.



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1. right click on mycomputer,then properties,then hardware,then device manager
2. you will find many devices, such as computer,disk drives,display,cd,etc....
3. select system devices, double click, there will be yellow colour indication appears on the pci
device, right click and diable it,
4. Selec Action menu and Scan for hardware changes, now your pci device will be detected and
install automatically and restart it.

ehsanullah (

Posted on Jun 15, 2009

  • 1 more comment 
  • Mohammed Ehsanullah
    Mohammed Ehsanullah Jun 24, 2009

    find the download link for the device detector (PC Wizard 2008), install it, run it, you will be displayed your all details of your drivers with name and model number..

    Pc wizard:

    then download your drivers from the given link

    Sound drivers


  • Mohammed Ehsanullah
    Mohammed Ehsanullah Jun 24, 2009

    try it all the best

  • Mohammed Ehsanullah
    Mohammed Ehsanullah Jun 27, 2009

    ok. you can reformat your system and download the drivers from the



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