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Devices problem i downgrade vista to xp, and i have some problem with my devices now, sound/connexant high definition bus driver, co-processor and bus SM control, can u help me

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  • zoukimi Nov 21, 2008

    Thank you for replying my message, hp customer care have already give me some links for device's driver but that audio driver cannot work and also bus controler high definition SM, and CO-PROCESSOR, my laptop model is HP COMPAQ PRESARIO V3500 / SN: 2CE738174X, PN: GX872PA'B5, MODEL V3623AU,
    Thanks again

  • zoukimi Nov 21, 2008

    I have trying in your advices (Usually, you need to install every driver manually - like go to Device
    Manager , update driver for every device by manually directing the
    "Hardware Installation wizard" to the correct file. ) but it's not possible, the device cannot be installed because the assistant dont found the necessary driver,
    I am confused that time, what can i do?
    Best regards and u are welcome for your assistance

  • zoukimi Nov 21, 2008

    Hi kenshin,

    Thank you for your help, sound was come back now in my coputer, left problem is that coprocessor and controleur de bus sm (?) , i dont know those are need for which function on my computer and how can i solve that (? yellow) displayed on my computer

    Best regards and thanks thanks thanks for your help

  • zoukimi Nov 24, 2008


    i checked which problem i have now and i see that some letter in my keyboard don't assigned the right letter when i'm writing, and also i cannot read dvd,

    that time it's my problem but i will check carefully again and i will see

    thank u very much for your help

  • cheeny Feb 08, 2009

    I have the same problem with my compaq presario v3500. Please let me know the steps you have done in solving the sound problem. I have tried installing my sound dirver conexant high definition audio but i just get it from the internet and an error occured that the media device cannot be found. Can you help me find a way on how to get my sound back? Thanks in advance..

  • Lailei  Pasiona
    Lailei Pasiona May 11, 2010


    I checked HP's website ( and for the specific model number of your laptop I did not find any XP driver for your audio device. Anyway, if you already downloaded the driver for your audio device you have to direct the driver installation wizard to the location of the driver file.

    Here's how to do it (please be certain that you know where you saved the driver for the audio device(:

    1.) Under Device Manager - right click the audio device (it will usually be under "Other Devices") and select Update driver.

    2.) The Hardware Update wizard will pop up, select the option - No, not this time. Click Next.

    3.) On the next window, select Install from a List or specific location. Click Next.

    4.) Under Search for the best driver in these locations - check only the "Include this location in the search. Click the BROWSE button and select the location where you saved the driver for your audio device. Click OK and click Next.

    Hopefully, it will find the correct driver.

    Good luck.

  • Lailei  Pasiona
    Lailei Pasiona May 11, 2010

    What do you mean by "..but that audio driver cannot work "? Do you mean it's not compatible with the audio device that you have? Also, how did you install these drivers?

    Usually, you need to install every driver manually - like go to Device Manager , update driver for every device by manually directing the "Hardware Installation wizard" to the correct file.

  • Lailei  Pasiona
    Lailei Pasiona May 11, 2010


    Are you referring to devices not properly installed under Device Manager? If that is the case, you'll have to manually install the driver for every device. The installer for Windows XP does not have all the necessary driver.

    Please indicate the brand and model number of your computer so that I can give you the link where to download the drivers as well as give you the steps in installing them.

    Have a nice day!



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It's good to hear that the sound problem is already fixed. You did a good job!

Regarding the co-processor and bus SM control with a yellow question mark (?) , the truth is I have no idea what specific device it pertains to. However , we can isolate what it is by knowing what specific features in your laptop that does not function well or does not function at all.

Did you notice any feature in your laptop that does not work well or doesn't work at all? Look for features such as card reader, USB port , or if there is any button on the laptop that no longer functions. If one of these laptop features doesn't work , then chances are the they are the devices with the yellow ?. You will have to download the drivers for each and install them manually.

The key here is to download the drivers that we need. Unfortunately, we do not know exactly what file to download. What you can do is to go back to the site where you downloaded the driver for your audio device, download all possible drivers that you can (this is time consuming but you may need the drivers in the future anyway).

After downloading the drivers, go back to Device Manger and right click the device with a yellow question mark , select Update driver and follow again the same steps I already posted in updating the driver manually.

I hope that helps.

Good luck and I hope to hear from you again.

Posted on Nov 22, 2008


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