How do you FORCE IRQ's (Windows 2000 Professional, AMI BIOS)

Discussion in 'Supermicro' started by CURIOUS ANGEL, Jul 31, 2005.

  1. I have a SCSI Supermicro P6DGU motherboard w/AMI BIOS, and am trying to
    figure out how to FORCE HARDWARE in Windows 2000 Professional, the new
    system I am presently building.

    There are three PCI cards that I am trying to force IRQ's on:
    CREATIVE SOUNDBLASTER LIVE! 5.1 CARD . . . PCI SLOT 5 . . . AMI set to
    PCI IRQ Priority "5"
    ADAPTEC SCSI 7850 SCANNER CARD . . . PCI SLOT 3 . . . AMI set to PCI
    IRQ Priority "10"
    SIIG MULTI-PORT EXPANSION CARD . . . PCI SLOT 2 . . . AMI set to PCI
    IRQ Priority "9"

    All three of these IRQ's are available incidentally; what I haven't yet
    touched are the DMA settings (because I don't really understand them),
    so that remains one of the few things I haven't yet changed (they
    remain set as PNP in BIOS).

    What is happening is, try as I might, I cannot get Windows 2000 to
    honor the AMI BIOS preferences -- despite having the cards in their
    appointed slots -- and I've tweaked this so many different ways by now
    my head spins.

    I've tried turning off PNP.
    I've tried booting into SAFE MODE.
    And of course I've tried every iteration of an uninstall/reinstall
    imaginable.

    The reason I need to lock in these IRQ's has to do with the generous
    selection of slots on my (wonderful!) P6DGU motherboard, and my
    intention to make use of all of them.

    I've experienced conflicts with the Soundblaster card with some older
    sound programs, thus it _MUST_ have IRQ 5, which is available.
    Currently it's on IRQ 19, and predictably, I'm having problems.

    I've experienced severe hardware lockup on BOTH my scanner and my
    printer when (either) have been forced to share an IRQ. I haven't even
    attempted to install the scanner software -- I already know I'm going
    to have problems. As for the printer: PROBLEMS. I have to manually
    interact with its console to start any print job; but worse, the
    printer is printing a pattern of (curiously attractive lol) marks
    across my paper on each page.

    In short folks, I wouldn't be asking how to do this if I wasn't
    experiencing problems right now. If I have to reinstall Windows 2000
    Professional in a completely different way, I WILL. I'm just building
    this system, so this is the time to do it.

    What advice do you have viz . . .
    AMI BIOS settings
    SYSTEM DEVICE MANAGER settings
    REGISTRY HACK
    SOUNDBLASTER LIVE 5.1 JUMPER SETTINGS?

    How about any 3rd party utilities that allow me to access these locked
    up IRQ's and get in there to fix them?

    Thanks anyone and everyone!

    Angel
     
    CURIOUS ANGEL, Jul 31, 2005
    #1
    1. Advertisements

  2. Cari \(MS-MVP\), Aug 1, 2005
    #2
    1. Advertisements

  3. Cari! Hey thanks! Might I impose upon you to confirm/revise my
    understanding of this process. The first question is the big one:

    Will I have to reinstall the OS for these forced IRQ's to work? --which
    invites the other end of that question, Will I be able to return to PnP
    mode AFTER these three devices are forced . . . and have their settings
    remain honored?

    Next, if the OS does NOT have to be reinstalled -- and these components
    were originally assigned IRQ's in PnP Mode -- is there a recommended
    SEQUENCE of steps to do this? Here is what I intend:

    1. System\ Device Manager to UNINSTALL devices
    _______Q. In SAFE MODE?
    2. Confirm that the PCI cards to be forced are in their appointed
    SLOTS
    3. Reboot
    _______Q. Or Shut Down and physically REMOVE the cards just to be
    sure?
    3. Boot\ DELETE into AMI BIOS
    4. CHIPSET\ ACPI Control Register\ Disable
    PCI|PnP SETUP
    5. \Plug and Play-Aware OS \ No
    _______Q. Or Yes? Will this prejudice my ability to return to PnP
    Mode LATER?
    6. \PCI Slot Priority
    2 = 10
    3 = 11*
    5 = 5
    (* note, this is a change because I read yesterday that IRQ 9 is used
    for PCI Steering and I don't want to invite trouble)

    I'm sure others will find this post helpful, and that is why I am
    trying to be exacting in my description of the steps involved. Thank
    you so much for helping me with this and I look forward to your
    comments! :)

    Angel
     
    CURIOUS ANGEL, Aug 1, 2005
    #3
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.