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owbp

macrumors 6502a
Original poster
Jan 28, 2016
719
245
Belgrade, Serbia
I'm trying to flash my HD6850 as a preparation for 7xxx or R9 series, which ill buy in next few weeks.
I bought this, Sapphire HD6850, card as i needed some work to be done in FCPX and only other card that i had was really struggling with everything except basic editing (GT220).

So I've been reading everything i could find and tried numerous ways of flashing (Windows with AtiWinFlash, OS X with netkas' script and Zeus, FreeDOS with AtiFlash) and nothing happens, I even tried adding 6850.efi.rom manually after reading one of the Rominators post on netkas forum and still no go.

I bricked it once, at the beginning, while using XFX 6850 bios and i managed to solder chip to bypass it on boot, but every flashing leads to the same result - card is recognized as 6xxx, PCI info shows errors and no boot screens.

Please help, if anybody is willing to take a look and point me in the right direction.

Im uploading 3 files, original rom, myrom made with instructions on netkas forum, and rom i manually made.
All three of them are giving me same results as any standard PC card would do in OS X.
 

Attachments

  • HD6850orig.zip
    39.1 KB · Views: 64
  • myrom.rom.zip
    83.8 KB · Views: 84
  • man6850.rom.zip
    83.8 KB · Views: 66
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