>>>> Regarding G5 Macs: There is no PPC ROM for Radeon graphics cards >>>> beyond X1900/X1950.
>>> Yes, I do know there are no ROMS
>>Then why do you think a Radeon HD4000 can work in a PPC Mac?
> No, but it can obviously work with Intel based ROM
No, a graphics card with Intel-based ROM can not work in a PPC Mac. I wonder how many times this must be repeated until you grasp it.
> like my cards in SAM460ex and X1000.
U-Boot of the Sam460 and CFE of the X1000 include a rudimentary x86 emulator. That's why they work with graphics cards with non-PPC ROM.
> Surely Apple machines are a bit more kinky.
The PPC Mac OpenFirmware lacks an x86 emulator. Not sure whether that's to be called "kinky".
>>> that is why my Radeon 6870 on X1000 doesnt always finds reset/reboot signal and has >>> to turn off and reboot.
>> No, that is not why (as itix said).
> That is reality I do live each day I turn X1000.
I don't doubt your problem with your X1000 (btw, I thought you gave it away to get the Sam460?), but opposed to what you claim it is not caused by the lack of a PPC ROM in your Radeon HD6870.
> Hope that is not obstacle that cannot be overcomed
