ACPI Device Windows 7


  1. davpet
    Posts : 39
    Windows 7 SP1
       New #1

    ACPI Device Windows 7


    Greetings.

    I would really appreciate having some further understanding on this.

    I am running windows 7 on my Toshiba Laptop Model No: L300 PSL B9E.

    If I take a look in my Device Manager I have two devices listed as other devices that are not installed. They are as follows.

    ACPI\TOS1900 and ACPI\TOS1901.

    My question is what are these two devices and their function and is it necessary for me to have these two devices installed.

    Many thanks
    Dave
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  3. Lemur
    Posts : 3,139
    Systems 1 and 2: Windows 7 Enterprise x64, Win 8 Developer
       New #2

    It's a drive controller. Go to Toshiba support and download drivers.
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  4. Lemur
    Posts : 3,139
    Systems 1 and 2: Windows 7 Enterprise x64, Win 8 Developer
       New #3

    AND
    The 1901 is the Intel chipset. Recommended to go to Intel for this driver. See thread below:
    Toshiba Support Forums: Unknown device ACPI\TOS1901 in Vista on ...
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  6. richc46
    Posts : 17,796
    Windows 10, Home Clean Install
       New #4

    Do you have a Toshiba?
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  7. Lemur
    Posts : 3,139
    Systems 1 and 2: Windows 7 Enterprise x64, Win 8 Developer
       New #5

    richc46 said:
    Do you have a Toshiba?
    Rich, I guess that question was to me? I have dealt with notebooks of all sorts, including Toshiba. I believe this is a European model, though for some reason I couldn't find the exact model on Toshiba's European site.
    **EDIT** I have a graveyard of notebooks in my offices.
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  8. richc46
    Posts : 17,796
    Windows 10, Home Clean Install
       New #6

    Question was not to you. We answered at the same time. Actually you answered twice to my once.
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  10. Lemur
    Posts : 3,139
    Systems 1 and 2: Windows 7 Enterprise x64, Win 8 Developer
       New #7

    richc46 said:
    Question was not to you. We answered at the same time. Actually you answered twice to my once.
    LOL
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  11. fits79
    Posts : 85
    Windows 7 sp1
       New #8

    Does anyone know from where i can download the "tos1901" drivers for toshiba satellite a210-19c and win7 home premium 64bit.
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