8800gt problems, doesn't want to start with gateway computer?

I had an HD 4650 and i decide to install my 8800 gt and my computer doesn't start .. it doesn't show anything on the screen. I only hear 1 long beep and 2 short ones. I don't know whats the problem.. and i really want to use this video card instead of the HD 4650... I powered my 8800gt ... i have a 500W power supply// and i don't really know whats going on. i already tried to install all the old drivers and didn't work...

Heres a link with my problem:


Youtube thumbnail



i have the 6 pin connector.... i have a OCZ power supply new power supply... so im assuming its the video card..... ill try everything you told me guys... thanks

5 Answers

  • C-Man
    Lv 7
    10 years ago
    Favorite Answer

    What brand/model of power supply do you have? Most 500W psus would have no problem with an 8800GT but really cheap ones like Logisys, Diablotek or Broadway Com may not provide enough amps on the +12V rails for the 8800GT.

    The beeping sounds like the card either isn't seated correctly, or is possibly defective... try installing it into a different computer and see if that boots. I assume you remembered to plug the 6-pin power cable directly into the card? Since the Radeon 4650 doesn't use a dedicated power cable that's easy to miss.

    Of course it's possible that your 6-pin PCI-E power cable/connector is bad, so the card isn't getting sufficient power. You could use a $3 adapter to convert a couple of spare molexes and see if that works.


  • Adrian
    Lv 7
    10 years ago

    When changing between ATI and Nvidia, you have to remove all the video drivers before changing cards...

    Put the old ATI back in, remove all the drivers - (puts it to generic VGA card) then shut down.

    Replace the card and try the Nvidia and see if it comes up as generic VGA. Load the Nvidia drivers after that...

    According to Gateway though, those codes imply a memory error - try re-seating your memory sticks - they sometimes get bumped when changing video cards.

    Another Gateway page suggests a BIOS checksum failure, though one should get some screen with that one I would think...


    Finally, this one:


    meaning video card problem (as though you didn't know already...) It may suggest the 8800GT is indeed faulty, try it in another PC if you can....

    Make sure you have the extra power connector plugged into the video card if it has that 6 pin socket!!!

  • Anonymous
    10 years ago

    There are only two possibilities.

    1) Your 8800 card is defective

    2) Your 8800 card is somehow incompatible with your motherboard. The only thing you could try is to clear your CMOS settings using the jumper on the mainboard. Other than that?

    My money is on a bad 8800 video card.

  • 10 years ago

    If your motherboard has a VGA or DVI output integrated into it, plug it in...

    Then turn on your PC and press delete or F2 to get into the BIOS.

    Check that the add on video card is enabled, if not enable it and save and exit the BIOS.

    you should then boot into windows ok!

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  • stroh
    Lv 4
    4 years ago

    this could be multiple issues. we are going to initiate with the main undemanding. enter BIOS setup and shipment "optimal Settings" if it is not an determination decide on load "Default Settings" No success?...attempt those. Reseat your video card and memory. verify your IDE and floppy cables for placement. Avatarxz

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