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Thread: IRQ prob

  1. #1
    Join Date
    Aug 2003


    My radeon 9800 pro is shareing IRQ with USB contr . When I installed it on abit Ic7-g MOBO it had its own IRQ(16) . I think it causes FPS probs .How do I asighn seperate IRQs . I did something to jack it up like this , wonder what ? Where are IRQs 2,3,5,7..........................

    IRQ 0 System timer OK
    IRQ 1 Standard 101/102-Key or Microsoft Natural PS/2 Keyboard OK
    IRQ 4 Communications Port (COM1) OK
    IRQ 6 Standard floppy disk controller OK
    IRQ 8 System CMOS/real time clock OK
    IRQ 9 Microsoft ACPI-Compliant System OK
    IRQ 10 Intel(R) 82801EB SMBus Controller - 24D3 OK
    IRQ 12 PS/2 Compatible Mouse OK
    IRQ 13 Numeric data processor OK
    IRQ 14 Primary IDE Channel OK
    IRQ 15 Secondary IDE Channel OK
    IRQ 16 RADEON 9800 PRO OK
    IRQ 16 Intel(R) 82801EB USB Universal Host Controller - 24D2 OK
    IRQ 16 Intel(R) 82801EB USB Universal Host Controller - 24DE OK
    IRQ 18 Intel(R) PRO/1000 CT Network Connection OK
    IRQ 18 Intel(R) 82801EB USB Universal Host Controller - 24D7 OK
    IRQ 18 Texas Instruments OHCI Compliant IEEE 1394 Host Controller OK
    IRQ 18 Intel(R) 82801ER SATA RAID Controller OK
    IRQ 19 Intel(R) 82801EB USB Universal Host Controller - 24D4 OK
    IRQ 19 Silicon Image SiI 3112 SATARaid Controller OK
    IRQ 20 Creative SB Audigy OK
    IRQ 21 OHCI Compliant IEEE 1394 Host Controller OK
    IRQ 23 Standard Enhanced PCI to USB Host Controller OK


  2. #2
    Join Date
    Jan 2003


    I recently asked the same question: They told me not to mess with it if it isnt directly IRQ related. What kind of FPS probs are you having? It might not be IRQs. I also read some literature on it. To change IRQs, usually people just rearrange their PCI cards. Seeing that yours is graphics card related (AGP bus), you cant do that, so you'll have to go through BIOS. Changing IRQs through the BIOS is pretty risky (so I read) and you can mess up your system if you dont do it right. Look around online for a guide, or wait for someone with more knowledge on this subject to reply. Good luck with it, : 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

  3. #3
    Join Date
    Aug 2003


    thanks for reply.......
    As i stated it wasnt that way on build up. I wonder what would cause it and why so many usb s? I try diableing the two( out of 4) usb s but joy stik wouldnt work . I mis stated FPS prob they are actualy pretty good , about 50fps on line IL2FB flight sim but I get occasinal shutter .................................

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