Equipment:
Mac:Apple G5 Dual 1.8Ghz (June 2004)
Monitor: Formac 2010 ADC
Graphics Card:ATI Radeon 9800 XT 256MB AGP (Powercolor model XR98T-D3) PC Retail version (
http://www.technewsworld.com/images/...ti9800xt_1.jpg)
ROM Chip in Graphics Card:25P05AV 9318C
Rom used to flash the card:9800 MAC PRO 256 MB 134 ROM (full 128k rom)
Additional Equipment:
Apple DVI to ADC adapter
I recently got an ATI Radeon 9800 XT second hand for a good price only to learn that i had to flash the card to work with the mac and also to buy an expensive DVI to ADC adapter.
I flashed the card with the 9800 PRO MAC ROM using Graphiccelerator since i read that flashing it with the XT Rom would make the DVI port unusable. To flash i asked someone with Apple Remote Desktop to do it from another computer.
After rebooting i sadly realized that my screen is so corrupted that i can't use it. I have tried several times ro re-flash the card but since i can't see anything that i'm doing it's very hard.
The strange thing is when MAC OS X is booting, the screen will sometimes show up correctly (blank blue) but only for a fraction of a second, then it becomes all corrupted again.
I believe i flashed the card with the right rom (128K). The number on the card's ROM CHIP is 25P05AV 9318C. Although i have read that this number refers to a 64K chip, when i first dumped the ROM it gave me a 128K PC file.
For a while i hoped that perhaps the ROM that i used to flash the card set it to the wrong core/memory frequencies but since i can't see the screen there seems to be no way to change these values either in Graphiccelerator or ATIcelerator II.
I have now quit trying to get this card to work on my mac since i have been unable to find any answers on what i did wrong.
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