5 Replies Latest reply: Dec 30, 2009 7:38 AM by ptrivilino
ptrivilino Level 1 Level 1 (0 points)
I recently purchased a 20" Apple Cinema Display to use with my G4. The G4 still has the original VGA graphics card -- an AGP Rage 128 Pro, I believe. I connected the monitor to my hard drive using a VGA to DVI adapter, but the screen does not light up. The monitor is plugged in and turned on, but when I start up my Mac, nothing happens.

Will the Cinema Display work with my graphics card when used with the VGA to DVI adapter, or do I need to install a new card in my hard drive? If I need a new graphics card, which card will work with my G4?

Thanks for the advice.


G4, Mac OS X (10.3.9)
  • 1. Re: DVI Graphics Card for G$
    BSteely Level 5 Level 5 (7,635 points)
    VGA, which is analog, won't convert to being digital by use of a simple adapter cable. You will need a new graphics card with a DVI connector on it.
  • 2. Re: DVI Graphics Card for G$
    japamac Level 7 Level 7 (24,390 points)

    What model of G4 do you have?

    Generally speaking, a DVI port equipped ATI Radeon 7500, ATI Radeon 9000 Pro Mac, ATI Radeon 9700 Pro Mac, or an ATI Radeon 9800 Pro Mac.
    Other options are the NVIDIA GeForce2 MX, GeForce3, GeForce4 MX, or GeForce4 Titanium graphics card.

    The model of your G4, and whether it is 2x or 4x AGP graphics, will determine which of the above cards can be used.

    G4 AGP(450)Sawtooth   Mac OS X (10.4.8)   2ghzPPC,1.62gbSDRAM, ATI9800, DVR-109,(IntHD)120&160,LaCie160,23"Cinema Display
  • 3. Re: DVI Graphics Card for G$
    ptrivilino Level 1 Level 1 (0 points)

    Thanks for the recommendations. My G4 is an AGP Graphics model. I was able to find a Radeon 9800 Pro on Ebay, which I received today. However, it looks as though I will have to return it to the seller for either a replacement or a refund. I installed the card in my Mac and connected my monitor to it. When I powered up my Mac, the monitor shows an image of the graphics card with a red flashing icon next to it that looks like a transistor. I'm not positive, but I would say that the card has a bad transistor on it? I will be sending an email to the seller this evening.

    Thanks for the help.

  • 4. Re: DVI Graphics Card for G$
    Forrest McElfresh1 Level 5 Level 5 (4,115 points)
    That Icon indicates the card is not getting adequate power, Did you connect the cards molex connector to a hard drive power lead from the power suppy?
  • 5. Re: DVI Graphics Card for G$
    ptrivilino Level 1 Level 1 (0 points)
    I plugged the card into the internal power supply and all is working now. Thanks.