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[Jacques]

Thank you. The card arrived today, I just want to check if it has a 64k or 128k rom chip first. Hopefully it has 128k.

[Jacques]

Card patched perfectly fine with the 136 Rom. 64mb recognised by OS9 and OSX.

This card runs very well, no fighting with drivers and coil whine in my Quicksilver, very pleased. The 9200 is going in the drawer!

[V.Yakob]

reduced ROMs is that they don't support Open Firmware, and they don't display an image until you reach the desktop.

Now I periodically launch BW while documenting information for myself on NetBoot, and I remembered this conversation.

I log in to OF without any problems, on this flashed video card.

I can do something in OF to show additional information.

[Image.Material]

For anyone who has a 128MB 9250 with a 64-bit bus (4 chips), here's a ROM that correctly reports the whole 128MB. It should work with a 256MB 128-bit 9250 card (8 chips) and correctly report the size, however it can't use more than 128MB and will freeze past this boundary (tested in OS X, not 9). I spent several hours trying to work this out for use of a 256MB 9000 (this time with a 9000 136 ROM) and despite correct VRAM detection, the openGL implementation in OS X for R200 family of chips seems to be where the limitation comes from.

The rom is modified from Mac elite's wikidownload for 128kb devid hack for 9250 rev 127.

The modification in question should apply to any radeon 9000 / 9200 family card rom to allow adequate detection of high-density chips, but that's futile for card with over 128Mb since it freezes when attempting to use greater amounts of VRAM. Someone might want to test under MacOS9 for this limitation, since my testing was all with Leopard. Any idea welcome.

I don't want to make a long post, so if anybody has questions, feel free to ask.

Of course, use the ROM at your own risk.

[Image.Material]

Got my hands on a Powercolor 9250 256MB PCI card not long ago.

And I've found what resistor to move to put it in single-function device, and get a normal picture. Luckily, it was a single resistor that had to be moved to get it to work, unlike some other cards.

Just leaving here pictures of the card and the resistor in question.

Oh, and I was able to test my large chips rom with that card under Mac OS 9. Leaving a system profiler screenshot as well for fun. That said, like I previously mentioned, all my attempts to use over 128MB of VRAM failed. I get kernel panics with this one, probably because it's a PCI card. But it's still funny to see 256MB VRAM reported in system profiler.