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g5, 30 hd cimnema, radeon 9800 xt

Discussion in 'PowerPC Macs' started by stupaul22, Aug 25, 2008.

  1. macrumors newbie

    bought a 30" mac hd display for my 1.8 dual core g5 power mac running osx 10.4.11. The card in my computer only allowed me to get 1280x800 resolution. I upgraded to the ATI Radeon 9800 xt mac to power the display to get the optimal resolution of 2560x1600.

    I bought the following on ebay:

    Product description is: Mac ATI Radeon 9800 XT 256MB Video Card G4/G5 Edition

    I put the card into my computer and still only got 1280x800.

    So I installed the following software updates:

    I am still only getting 1280x800.

    Furthermore both my system profiler and Ati control panel info profile seem to think the 9800 Pro with 128 ram is installed -- rather than the 9800 XT with 256 ram.

    System profiler says:
    ATI Radeon 9800 Pro:

    Chipset Model: ATY,R350
    Type: Display
    Bus: AGP
    Slot: SLOT-1
    VRAM (Total): 128 MB
    Vendor: ATI (0x1002)
    Device ID: 0x4e48
    Revision ID: 0x0000
    ROM Revision: 113-A07525-130
    Cinema HD:
    Display Type: LCD
    Resolution: 1280 x 800
    Depth: 32-bit Color
    Core Image: Supported
    Main Display: Yes
    Mirror: Off
    Online: Yes
    Quartz Extreme: Supported
    Status: No display connected

    Did I install the wrong ROM update? So now the computer thinks its a different card?
    How do I reverse that?

    The card looks like the XT not the PRO -- when I compared it to pictures on the web.
    It looks like this:

    Is the 9800xt the same as the x800xt?

    Why does my machine say I have the PRO installed?

    Is there newer software that I need?

    How can I get the 2560x1600 resolution?

    Help please.


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