so you mean i need to flash 7950 on 280X to make it work on mac pro with boot screen?
do you know where can i find a flash service on internet please?
No. the R9 280X is the same as the HD 7970.so you mean i need to flash 7950 on 280X to make it work on mac pro with boot screen?
i read the netkas topic, but it did said how to grab an efi from mac rom, so i can't follow the steps, i saw you have a sapphire 280X, could you send me the rom please if it's mac version? : investaparis@gmail.com, thank you so much.No. the R9 280X is the same as the HD 7970.
Read the first page of the Netkas thread
No, I have a Sapphire Dual-X HD 7970 3gb.
The R9 280X is an upgraded model of my 7970.
I suggest that you spend a lot more time over at netkas .. read every page .. . as we did.
http://forum.netkas.org/index.php?topic=5619.0
You have to make a rom that is ONLY for your brand and model of GPU. DOn't use other people's ROMS.
Study how to make use the script that Netkas gave us to help us make a ROM by ourselves.
Especially learn about ' device I.D
Also, why did you connect / remove power cables while the Mac pro was powered up ? That is suicidal.
Always, shut own your Mac Pro & remove the power cable before you do anything you don't have experience with.
If you read the netkas forum, you'd surely find the script that does just that.
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You should make a SIG - go to your Macrumors Profile and make a SIG to tell us which model of cMP. which GPU, etc.
you have.
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ROM DUMP
To dump the ROM ( assuming that you have not already overwritten the original ROM )
First shutdown your cMP and set the " BIOS SWITCH " to position 2 ( to the right side )
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1.0 Go to https://www.techpowerup.com/download/techpowerup-gpu-z/
Download GPU-Z
1.1 Install GPU-Z into Win 7, 8, or 8,1
1.2. Use GPU-Z to DUMP your R9 280X rom to a USB stick.
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2.0. Go to https://www.techpowerup.com/download/bios-flashing/
Download ATI Winflash
2.1. Install ATI Winflash to Win 7, 8 or 8,1
2.2. ATI Winflash will be used to flash the ROM you create with the Netkas script to your R9 280X
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4. I think that the Device ID for the R9 280X is 6798 ( search at Netkas )
Now you can run the Netkas script but you will also have to use your brain ( as I had to ) to setup the script to run correctly.
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NOTE :
If you have ALREADY flashed someone else's R9 280 X ROM to your card. . . you have a real problem.
The whole point of using the Netkas script is to . ..
(1) Dump YOUR card's ROM and SAVE it to somewhere safe.
(2) Only flash YOUR dumped & SAVED ROM.
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EDIT : After a successsful flash you will have TWO roms ( 1) Your original DUMPED rom for future re-flashing . (2) Your successfully EFI flashed rom
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The rest is up to you.
Everything you need to know is in the Netkas thread. http://forum.netkas.org/index.php/topic,5619.0.html
Read all 44 pages.
Read my post again , , then boot into Windows 7 or 8,1 then use GPU-Z to DUMP your rom.
I install Windows 7 on it's own, separate spinner harddrive .. boot into it holding the Option key at startup. . it takes a while to start but it eventually does start up.
Windows7 is easier to set up than WIN. 8,1 ( IN MY OPINION ).
i have read it three times more, but could you time me two did you get the efi flashed rom? the basic of netkas scrips is merge efi file and the original rom, so i do have original rom, and atiflash, one mac pro and one pc with window 7, tell me which part did you mention to get the efi file please?