robov's blog

Flashing Radeon 9000

I'm looking for some expert advice here. Am a newbie and hope the question isn't out of place or out of line. Picked up an Ati radeon 9000 PC ATI RV 250 chipset. Got a hold of couple of Mac 9000 roms. A 113-99703-112 Radeon 9000 Pro Mac Edition and a newer version 113-99703-127. Installed card into PC Agp slot and started on PCI card with appropriate Ati flashrom and such. Ran Flashrom -i and showed atmel M2510ST/c for chip. I think this is the 128K larger chip. Backed up original bin and flashed with older rom successfully. But when installed to mac shows up as 16 MB VRam and will only show video in 256 colors and not very good at that. In 9.22, 10.28 and 10.34. Have all the latest drivers installed. Anyone have any success with this card. Any help would be greatly appreciated.

O.k update on testing. Weird stuff happens depending on whether your reading the card with Flashrom -i or ATI Flash -i. On the my other HIS Excalibur Radeon 7000 VE, ATI flash read the rom chip as 0x2000 when in fact ATI Flash read it at 0x1000 which is what it should have been. On this card ATI ATI RV250-LE_900 R 1.00 Radeon 9000 Flashrom reads rom chip as M2510ST/c 0x2000 and ATI Flash reads it as ST M25P05 0x1000 which is what it should be. I've now flashed with smaller rom courtesy of these forums and am about to reboot to the Radeon. System profile still shows Vram as 16 MB. Can't figure that out. Wondering if i can somehow tweak the rom file with hexedit to change that. Any ideas? The other choice of course is to try to change the rom chip to a M25P10 and possibly screw the card for good or flash it back the PC rom and flip it and try to find a 8500 or 7000 card.

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