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Author Topic: Changing the IRQ of hardware devices in XP  (Read 2030 times)

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Raptor

  • Guest
Changing the IRQ of hardware devices in XP
« on: May 24, 2005, 07:57:04 AM »
Windows XP does not let me configure the IRQ of devices such as the soundcard. The option to do is simply greyed out.

Quite a while ago, I was able to change the I/O adresses, however, they would jump back to their default settings as soon as I clicked OK.

What could be the cause of these two problems and how do I solve them?


dl65

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  • Prodigy

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    Re: Changing the IRQ of hardware devices in XP
    « Reply #1 on: May 24, 2005, 12:55:32 PM »
    If you don't know the answer, it isn't a dumb question.

    Raptor

    • Guest
    Re: Changing the IRQ of hardware devices in XP
    « Reply #2 on: May 24, 2005, 01:28:59 PM »
    Quote
    Note that Windows 2000 and XP cannot rebalance resources in the same way that Microsoft Windows 98 does. After PCI resources are set, they generally cannot be changed.


    Then why does Microsoft recommend you change IRQ settings should a conflict have occured?
    « Last Edit: May 24, 2005, 01:29:40 PM by Raptor »

    merlin_2

    • Guest
    Re: Changing the IRQ of hardware devices in XP
    « Reply #3 on: May 24, 2005, 02:03:57 PM »
    Well IRQ's - Prioritizing

    Start/Run/Regedit
    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\PriorityControl. Create a new DWORD value called IRQ8PRiority and set the data to 1, reboot.  


    Raptor

    • Guest
    Re: Changing the IRQ of hardware devices in XP
    « Reply #4 on: May 24, 2005, 03:00:13 PM »
    And what exactly will that do?

    merlin_2

    • Guest
    Re: Changing the IRQ of hardware devices in XP
    « Reply #5 on: May 24, 2005, 03:41:15 PM »
    read  your post that you have written!

    ---------------------------------------------------------------------
    Quote:#~

    Windows XP does not let me configure the IRQ of devices such as the soundcard. The option to do is simply greyed out. velociraptor
    « Last Edit: May 24, 2005, 03:41:59 PM by merlin_2 »

    Raptor

    • Guest
    Re: Changing the IRQ of hardware devices in XP
    « Reply #6 on: May 25, 2005, 04:58:19 AM »
    That doesn't quite answer my question, Merlin.

    I assume that from what you are trying to tell me, you are saying the options will be avaible again. Correct?


    merlin_2

    • Guest
    Re: Changing the IRQ of hardware devices in XP
    « Reply #7 on: May 25, 2005, 11:40:36 AM »
    Yes:).........backup reg before making any changes
    as always...........

    Raptor

    • Guest
    Re: Changing the IRQ of hardware devices in XP
    « Reply #8 on: June 27, 2005, 02:16:07 AM »
    Adding that registry value did naught but making Internet images load slower..

    Sidewinder



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    • OS: Windows 10
    Re: Changing the IRQ of hardware devices in XP
    « Reply #9 on: June 27, 2005, 06:26:39 AM »
    The true sign of intelligence is not knowledge but imagination.

    -- Albert Einstein

    Raptor

    • Guest
    Re: Changing the IRQ of hardware devices in XP
    « Reply #10 on: June 27, 2005, 08:33:36 AM »
    That does indeed explain.

    Are you not able to change IRQ settings either, Sidewinder?

    Sidewinder



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    • OS: Windows 10
    Re: Changing the IRQ of hardware devices in XP
    « Reply #11 on: June 27, 2005, 11:26:50 AM »
    Either I've been incredibly lucky or XP really knows what it's doing. Haven't had any conflicts either with this laptop (xp home) or my desktop (xp pro). Which is good cause I wouldn't know how to go about fixing.

    I was under the impression that the HAL checked out all your devices and assigned the IRQ's accordingly. This laptop has 9 devices on IRQ 10. From what I read, XP does not rebalance the IRQ's like Win98 did.

    You can force another HAL during installation (I guess this is for the DIY crowd):

    http://support.microsoft.com/kb/299340/?FR=1

    Is your soundcard in conflict?

    8)
    The true sign of intelligence is not knowledge but imagination.

    -- Albert Einstein

    Raptor

    • Guest
    Re: Changing the IRQ of hardware devices in XP
    « Reply #12 on: June 27, 2005, 11:32:55 AM »
    I wish to lower the IRQ of my soundcard to an IRQ below 10 or 7. This will help me better configure the sound drivers for older games, as they often do not allow you to go higher than 7 or 10.

    Although often IRQ 5 or 10 will work for SoundBlaster Pro configuration, but the sound is choppy.

    Am I wrong in thinking that lowering the IRQ would help solve this problem?

    I think I shall leave it up to HAL, not quite worth reformatting...
    « Last Edit: June 27, 2005, 11:56:43 AM by Raptor »

    merlin_2

    • Guest
    Re: Changing the IRQ of hardware devices in XP
    « Reply #13 on: June 27, 2005, 12:37:34 PM »
    either remove the sound card from the device manager and re-boot >>and see ifwinxp allocates an new irq for it ........or take the card out and put in in another port....
    « Last Edit: June 27, 2005, 12:38:30 PM by merlin_2 »