7xxx rom creating test.

[owbp]

@recr
If i were in your place, i would sell that card and get one with DVI, HDMI and two mini Display Ports (Sapphire, Gigabyte, MSI...).
Here is your ROM, edited "by hand" (ill run a script if this doesn't work) but i really don't know what outputs will work (maybe DVI and HDMI, but just maybe...).

[gogocity]

i create a custom rom with that post and flash it via zeus software.. but nothing changed on booting

[Spacedust]

It work work with default rom, don't even try.

[jigsaw_puzzle]

i am trying to flash  "Gigabyte R9 280x GV-R928XOC-3GD REV2 windforce" right now, so far i flashed it few times using the script , but i never  get the bootscreen   , I'm not sure what i am doing wrong , i was reading through the forum looking for  a solution .

Can you attach your original and edited ROM here? Gigabyte should be a breeze to flash.

  I got. It flashed with the help of one of the forum members satstrap, big thanks to him , thanks for your respond .

[Fljagd]

Hey boys and girls, give it a try.

A script should be able to generate a rom for 7750 7770 7850 7870 7950 7970

https://cloud.mail.ru/public/8c978735fc99/bundle.tar.bz2

no framebuffer name change yet, so far testing ability to get bootscreen

P.S. It is ONLY FOR MACPRO, hackint0sh doesn't need this, it will not make hackint0sh run a little bit better
P.P.S. needs java and python

cat README:

dump bios from your 77xx-79xx card and save it into this folder as cardname.rom
find your 4 digit deviceid (if its 697a1002, then obviously you need only 697a, since 1002 is ATI vendor id (dont be stupid here, please)
)
run script, replace 697a with your deviceid and cadname.rom with your actual original video bios file

./makerom.sh --efifile=7950mac.efi --romfile=efiromheader.rom --originalrom=cardname.rom --devid=697a

WARNING, if you have uefi part in bios already (e.g. if its much larger than 65kb) then it will be overwritten with new efi part

just for information
It is true that this is not essential on Hackintosh
However on my X99 I was forced to active CSM
So I flash my 7950 to inject UEFI
Now the CSM is disabled
I am in full UEFI
thank you very much

[Fl0r!an]

What you see in your screenshot is done by Clover. In case your graphics card didn't have an UEFI ROM in before, you'd usually add an UEFI 2.0 GOP driver to the ROM, not Mac stuff.

[Fljagd]

What you see in your screenshot is done by Clover.

Yes

Code:

5:268  0:000  Framebuffer @0xA0000000  MMIO @0xDE200000 I/O Port @0x0000E000 ROM Addr @0xDE240000
5:268  0:000  ATI card POSTed,
5:268  0:000  Set VRAM for Cedar+ =3072Mb
5:268  0:000  ATI: get_vram_size returned 0xC0000000
5:268  0:000  ATI Radeon EVERGREEN family
5:268  0:000  Users config name Aji
5:268  0:000  (AtiPorts) Nr of ports set to: 5
5:268  0:000  ATI Tahiti AMD Radeon HD 7950/8950/R9 280 3072MB (Aji) [1002:679A] (subsys [174B:E208]):: PciRoot(0x0)\Pci(0x3,0x0)\Pci(0x0,0x0)

In case your graphics card didn't have an UEFI ROM in before, you'd usually add an UEFI 2.0 GOP driver to the ROM

Exactly
Here flashed the ROM and my Config.plist

[ryankbarrett]

Hi guys, I'm new to flashing, but I have a PowerColor HD7950 on a Mac Pro 3,1 and am trying to get boot screens. I read up in the thread but so many different versions of the firmware/rom were posted, I don't know what to use. Could anyone give me some insight on flashing this card?

Thanks a bunch!

[DYSEQTA]

OK I'm officially confused.

I have an ASUS HD7950 DirectCU II 3GB in a Mac Pro 5,1 (4,1 with 5,1 firmware) connect to an Apple Cinema Display 30" via DVI-D.

I have modified it's BIOS using the scripts provided and flashed successfully. The card works fine in Windows (not sure if it works in MacOS as I don't have it installed on this machine). However, I do not get a boot screen. I get the same blackness until Windows is loaded that I have always had

GPU-Z Says:

[yzfnyc]

Hi guys, I'm new to flashing, but I have a PowerColor HD7950 on a Mac Pro 3,1 and am trying to get boot screens. I read up in the thread but so many different versions of the firmware/rom were posted, I don't know what to use. Could anyone give me some insight on flashing this card?

Thanks a bunch!

What model PowerColor 7950 do you have?  If it is the AX7950 3GBD5-2DHV4 it's the same one I have.  Attached is the rom file just boot into windows and flash with atiwinflash.  Have you flashed a card before?

[denisio]

Hi

Today I tried to flash a R9 X280 card for a friend. But makerom.sh showed an error. It was in fixrom.py. One of the OpRoms in his card
had the checksum with a value of 0x00. fixrom didn't like that. the chances that this happens is 1 to 255. damn luck.

so I fixed fixrom.py

old broken line:

  self.data[-1] = chr(0x100 - sum)

new fixed line:

  self.data[-1] = chr((0x100 - sum) % 0x100)

Denis

[Techchallenged]

Sorry if this has already been asked but I have read and couldn't see it. Does anyone have a Gigabyte AMD Radeon HD 7970 3GB GDDR5 OC ebd efi rom already created? I have a macpro 2,1. I understand that if I stitch the 7950 efi it should work but I am snowed under at work at the moment. Thanks guys. TC

[daav]

Hi everyone

i got my hands on a Sapphire HD7950 3GB DualX
i tried some roms : first Rominator's on 1st page nogo
then some Sapphire 7950 i found on the thread nogo
(mismatch id ...)

so i tried Netkas script on first page (outch)
i successfully created a rom under OSX, flashed it ok

but my macPro 1.1 show black screen, even under bootcamp
the card is ok on a pc (Win7-64)

so what ? 1.1 doesnt like PCI-e 3.0 ?

i'll send my rom in case someone want to see/try
maybe it works on macPro 3.1

thanx for all the tremendous work over the years

[owbp]

but my macPro 1.1 show black screen, even under bootcamp
the card is ok on a pc (Win7-64)

so what ? 1.1 doesnt like PCI-e 3.0 ?

7950 works in 1,1 - i had two.

EFI part of your rom was completly empty...
Try attached.

P.S. This one is just copy-paste, i'll do one with a script if this doesn't work.

[Rominator]

How powered in Mac?

All pins are NOT optional.