> Please answers with links, no just hyperlinks.

Huh? in hypertext context the term "link" is just short for "hyperlink". There's no difference. Besides:

https://morph.zone/modules/newbb_plus/viewtopic.php?forum=38&topic_id=9764&start=98

>> 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?

> 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).