IRQ conflict

Discussion in 'CPU, Motherboards and Memory' started by mithrandiir42, Nov 19, 2004.

  1. mithrandiir42

    mithrandiir42 Geek Trainee

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    Ok... this is the second time i've had to write this. gotta type quick before my computer crashes again hehe.

    Anyway, i've been having really bad instability problems with my computer for months now, it started when i upgraded my motherboard & cpu, got an fic-kt748 and an amd athlon xp 3000 (400mhz fsb barton) since then i've returned both the mb and cpu thinking i got a bad one then i replaced every single part in my computer thinking it was another piece of hardware, reloaded windows a bunch of times (not even sure i can count that high) but now i've found that i've got a pretty nasty irq conflict. below is a copy of how things are assigned to my irqs. as you can see there's three devices assigned to 16. i started trying to resolve this by moving cards around in my pci slots but no matter how i rearrange them, they always either assign to 16 or 18, i can't get anything to assign to a lower irq such as 2,3,4,5,7,10,or 11. i have all my com ports, parallel port, and even my usb disabled in my bios. i've tried uninstalling the devices from windows, rebooting, resetting configuration data in my bios, and reinstalling everything one at a time but they *always* assign to either 16 or 18. if anyone could give me some advice or something else to try because i'm out of ideas, i'd really appreciate it. Thanks for your time,
    - Jeremy

    0 : System timer
    1 : Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
    6 : Standard floppy disk controller
    8 : System CMOS/real time clock
    9 : Microsoft ACPI-Compliant System
    12 : PS/2 Compatible Mouse
    13 : Numeric data processor
    14 : Primary DMA Channel
    15 : Secondary DMA Channel
    16 : RADEON 9800 SERIES
    16 : Realtek RTL8139/810x Family Fast Ethernet NIC
    16 : WinXP Promise SATA150 TX Series (tm) IDE Controller
    18 : Realtek AC'97 Audio
    19 : M-Audio Delta Audiophile


    ps. also when it crashes it'll either just restart with no error messages or anything or i'll get blue screens of death saying something about IRQ_NOT_LESS_THAN_OR_EQUAL or there will be an error in ati2vag.dll..

    these error messages further convince me it's an irq problem since my ati radeon is one of the conflicting devices.
     
  2. Big B

    Big B HWF Godfather

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    It's perfectly normal to see this. With Win2k and XP, they use virtual IRQ's, but it shows up as having several devices as IRQ's. Secondly, many devices, especially any that are PCI compliant must be able to share IRQ's.

    The ati2vag.dll is part of ATi's drivers for their video chips. Basically, update to a newer video card driver first. You also might want to hit up SiS website for the latest drivers for the 748 chipset, as motherboard companies usually are a few releases behind on their website, and that FIC hasn't had a good website the last time I checked.
     

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