I have a PC bios Radeon 9550 with 128MB VRAM. I was wondering if I could flash this with a downgrade Mac-compatible ROM to go in my newly purchased Dual-2.5GHz G5 Powermac 7,3.

I was thinking of going down to a 9500 non-pro or 9500 Pro. Maybe even up to the 9650 ROM from here -> http://themacelite.wikidot.com/wikidownloads2

If anyone could help out, I'd appreciate it. The MacElite forum is down until further notice

Many thanks.

PS. I just discovered it comes with the Radeon 9600, so this may all be academic really...