Thread: Is agp 4 compatible with agp 8?

  1. #1

    Is agp 4 compatible with agp 8?

    My old computer was using an AGP 8 card, and my father bought some AGP 4 to replace it.

    Are they compatible? Or the screen is messy/not showing anything on windows because I didnt uninstall from windows the other one first?

  2. #2
    Registered User mrafcho001's Avatar
    Join Date
    Jan 2005
    I am pretty sure they are.

    the only way to find out is to try it out! ; - )

  3. #3
    Super Moderator VirtualAce's Avatar
    Join Date
    Aug 2001
    Yes. Only diff is the frequency of the AGP bus. I think it start's at 33 mhz as AGP 1x.

  4. #4
    Thanks guys, I got it working, so it is compatible

    The odd thing is that even while booting, the graphics were not displaying right. But I put the old better card back, uninstalled, then everything worked.

    I never want to use that computer again

  5. #5
    Registered User
    Join Date
    Mar 2004
    The cards have nothing to do with eachother, one being agp 8x and the other being agp 4x. What matters in this case is if your motherboard supports agp 8x, so of course it will also support an agp 4x card. Even though the mobo is agp 8x it will run the card on agp 4x since thats what your graphics card is. Look at your motherboard specs and im sure you will find something like this
    Slots: 1x AGP 8X, 5x PCI,

    What you need to do is uninstall the drivers of the agp 8x card, remove the card, install the new agp 4x card and install the drivers. then you will not have any problems with the graphics.
    When no one helps you out. Call google();

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