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Thread: Need to change my IRQ's




  1. #1
    Join Date
    Jan 2003
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    790

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    Ok, I searched the forums and dint find anything quite like what I needed, so I decided to post a new thread. Here's the problem: My vid card and my OHCI Compliant IEEE 1394 host controller share IRQ 16, and my Audio card and USB controller 2442 share IRQ 19. I think this might be bottlenecking my system (especially with my having a USB cable modem). Is there any way I can change the IRQ's with out switching around the cards? They really need to be where they are for air flow issues. Thx alot, : peace2: Mista K6
    Modified Dell 8200 Case:
    -400MHz FSB i850 Intel mobo
    -P4 Williamette Socket 478, 1.9GHz
    -768MB 16-bit PC800 RDRAM
    -MSI GF4 Ti4200 128MB @ 284/581
    -7200 RPM Maxtors: 60GB (2MB) on mobo and 160GB (8MB) on ATA/133 PCI Card
    -Creative Inspire T7700 7.1 Speaker System on an Audigy 2
    -Windows XP Home Edition SP2

    Rock on : peace2: , MiStA K6

  2. #2
    Join Date
    Feb 2003
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    Fincastle, IN, USA
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    I have similar IRQ shares as you, and its not caused any problems

  3. #3
    Join Date
    Jan 2003
    Posts
    790

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    ok then, I wont fix things that dont need to be fixed. Thx, : peace2: Mista K6
    Modified Dell 8200 Case:
    -400MHz FSB i850 Intel mobo
    -P4 Williamette Socket 478, 1.9GHz
    -768MB 16-bit PC800 RDRAM
    -MSI GF4 Ti4200 128MB @ 284/581
    -7200 RPM Maxtors: 60GB (2MB) on mobo and 160GB (8MB) on ATA/133 PCI Card
    -Creative Inspire T7700 7.1 Speaker System on an Audigy 2
    -Windows XP Home Edition SP2

    Rock on : peace2: , MiStA K6

  4. #4
    Join Date
    Dec 2001
    Posts
    12

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    I have the same problem, my network card and onboard sound card (C-Media CMI8738) both share IRQ 15 and occasionally my machine will lock up under heavy network activity and playing music. Short of changing what slot the network card is in how else can I change the IRQ (windows 2000).

    Currently I see settings under device manager but they are greyed out


    TIA

  5. #5
    Join Date
    Nov 2001
    Location
    New England Highlands, Australia
    Posts
    21,907

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    Quote Originally Posted by Khaine
    I have the same problem, my network card and onboard sound card (C-Media CMI8738) both share IRQ 15 and occasionally my machine will lock up under heavy network activity and playing music. Short of changing what slot the network card is in how else can I change the IRQ (windows 2000).

    Currently I see settings under device manager but they are greyed out


    TIA
    No not really as IRQ's are generally hardware dependant which is why motherboard manuals will usually state somewhere in them the shares between AGP/PCI slots and onboard components so that ya can choose an appropriate slot for whatever device ya installin'. Usually ya'll get 1 PCI slot without shares but nic's can also share IRQ's with USB controllers without probs if ya can't.

  6. #6
    Join Date
    Dec 2001
    Posts
    12

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    Thanks, I shall have a closer look at my mobo manual

    :)

    [Edit]I tried changing them manually as specified in my mobo's manual (Asus P4B266) but to no avail. here is a list of my current IRQ's

    IRQ 00 Exclusive System timer
    IRQ 01 Exclusive Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
    IRQ 03 Shared Communications Port (COM2)
    IRQ 04 Shared Communications Port (COM1)
    IRQ 06 Exclusive Standard floppy disk controller
    IRQ 08 Exclusive System CMOS/real time clock
    IRQ 0D Exclusive Numeric data processor
    IRQ 0E Exclusive Primary IDE Channel
    IRQ 0F Exclusive Secondary IDE Channel
    IRQ 10 Shared NVIDIA GeForce3 Ti 200
    IRQ 13 Shared Intel(R) 82801BA/BAM USB Universal Host Controller - 2442
    IRQ 15 Shared Realtek RTL8139(A) PCI Fast Ethernet Adapter
    IRQ 15 Shared CMI8738/C3DX PCI Audio Device
    IRQ 15 Shared NEC PCI to USB Open Host Controller
    IRQ 16 Shared NEC PCI to USB Open Host Controller
    IRQ 16 Shared Microsoft ACPI-Compliant System
    IRQ 17 Shared Asustek USB Enhanced Host Controller
    IRQ 17 Shared Intel(R) 82801BA/BAM USB Universal Host Controller - 2444

  7. #7
    Join Date
    Nov 2001
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    New England Highlands, Australia
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    I've always sorted my IRQ's before installin' the os as that's always worked for me but did ya uninstall the component in Windows before changin' it? :?:

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