DMA and PIO problem

Discussion in 'Windows Vista Drivers' started by Knight, Aug 20, 2005.

  1. Knight

    Knight Guest

    My laptop, Fujitsu E4010, P4 XP + CDRW does not read CD.
    I found that it is because secondary master is set to "DMA if available",
    and that if it is set to "PIO", machine reads/writes CD.

    Fujitsu's Sevice engineer says that I/O device of mainboard or chipset
    may be out of order, and says that it requires lot of money to fix or replace.
    I don't agree to his hardware defects for all the notebook functions are
    quite normal, and
    found that there could be hardware compatibility problem, from Microsoft site,

    The above Microsoft page explained " implementing the _GTM and _STM
    Does anybody knows "the _GTM and _STM"?
    System manufacturers can override this default behavior by implementing the
    _GTM and _STM methods in the ACPI BIOS. Also, the user can enable DMA using
    the Device Manager.

    Is there any possibility to recover "DMA if available", instead of "PIO"?
    Knight, Aug 20, 2005
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