R9 280x flashed with EFI

[SMIKX]

  I use a non-conductive Japanese toothpick 

[gn2]

Thanks.   I cut and pasted the EFI section in at 64512 and filled the space following it with FFFF and I now have bootscreens!

Here's my ROM if anyone else has the Powercolor R9 280X 3GB card.

Thank you so much for posting this rom, I have a Powercolor R9 280X 3GB card, and I successfully flashed this, but first, it won't boot in Windows, and in MACOS, it chimes, gives me a multicolored lines screen, then doesn't complete that boot either.

Anyone have any ideas what I need to do to make this ROM work on *my* Powercolor R9 280X 3GB card ??

[Tpluth]

I would reinstall the original rom, then copy the EFI section into it and install it

[kapqa]

Hello , i am quite new to this forum but already an average MacUser (since 2004) .

I have a one-two question regarding flashing R9 280x:

- if i would buy off Ebay an unflashed Gigabyte R9 280x (used, as new they don't seem anymore available) could i be able to flash Mac EFI for Bootscreen in any case or would this be a lottery depending on which Rev. (1.0 or 2.0 or whatsoever) i would get?

- if i would be able to flash succesfully a Mac EFI Rom, would that automatically give me Full 5.0 GT Linkspeed or would i need to do further steps?


I am using a MacPro 5.1 and have a MacPro 1.1 with Bootcamp (Windows 7) also available.


Tips and Suggestions are very welcome, thanks!

[SDug]

Just make sure you get one with the reference card ports: One DVI, one HDMI and two mini DP. The later versions of the R9 280X have two DVI, one HDMI and one full sized DP ports and these are much less likely to work. Just skim through this thread, note the makes and models that flash without issue and concentrate on getting one of those.

With the latest EFI firmware update for the Mac Pro 5,1, you will get 5GT/s without having to do any resistor mod. The Mac Pro 1,1 is limited to PCIe 1.0, I believe, so your max throughput is 2.5GT/s regardless.

[kapqa]

Thank you for your answer,

i have looked on Youtube for a Resistor Mod to get 5.0 , it seems doable with the right tools, not too hard.

I don't know about a EFI update for 5.1 yet, if you mean that one coming for users running Mojave, read about that, would be great to be able to use any Radeon card whatsoever fully with bootscreen and 5.0 Linkspeed, but hopefully this update would not bring other limitations like impossibility to boot older OSX.

[SDug]

I don't know about a EFI update for 5.1 yet, if you mean that one coming for users running Mojave, read about that, would be great to be able to use any Radeon card whatsoever fully with bootscreen and 5.0 Linkspeed, but hopefully this update would not bring other limitations like impossibility to boot older OSX.

I mean this update:

http://netkas.org/forum/index.php/topic,13873.0.html

It doesn't provide bootscreens with non-flashed cards but it does allow you to update the MP's EFI without a flashed graphics card in future as well as dispensing with the resistor mod. You also don't need to actually install Mojave to install this EFI update. Just download Public Beta 6 and start the installation. It will prompt you to restart your Mac holding the power button in to put it into EFI update mode. After the bootrom is updated your MP will restart and boot to the Mojave installation screen. You can just cancel the installation.

You can still boot Snow Leopard with this bootrom.

[jabbawok]

I made this rom with the 7000 rom creation script, using a PC rom from another card. The Stock XFX rom wouldn't let the Mac boot.
This rom works, I get boot screens and it seems to perform fin in3D Benchmarks, but it reports 1182796800 MB of RAM.
I realise this is cosmetic, but I'd like to fix it if possible.


Spacedust  mentioned fixing the crazy memory but didn't go into detail about how its done.

Any help would be greatly appreciated..

Attached r9280x_ben_rom.efi.rom is the one I'm using, and xfxr9_280x_DD_Black.rom is the factory one.

[vinnie1978]

The 2 roms you posted are based upon different roms.

They are both from xfx double dissipation blacks , try to make the efi.rom based upon your own videocards rom.
I made the rom based upon the second posted rom 280x_dd black.rom

[Rominator]

good luck with XFX

they made best 4870 for Mac, but ever since cards have been trouble

fans are really cheap and die young

They (XFX) seem to win the 'race to the bottom" for cheap parts.

Try the various roms, you can use pc version and see which gives right RAM before you bother creating EFI for it

[Spacedust]

I've made every XFX R9 280X and R9 280 working so it's doable. On one card I had to use some beta BIOS from Club3D to get rid of flickering.

[kapqa]

J
With the latest EFI firmware update for the Mac Pro 5,1, you will get 5GT/s without having to do any resistor mod. The Mac Pro 1,1 is limited to PCIe 1.0, I believe, so your max throughput is 2.5GT/s regardless.

I just have the MP (1.1)2.1 left, and am awaiting an R9 280 (unflashed). so either way, with resistor mod or withouth, i will only get 2,5Gb/s?
Then there is probably no need to risk the resistor mod, or are there any benefits?
If i would flash the card (in my understanding only possible if someone is offering an EFI, or am i wrong?), would i get additional benefits , next to the bootscreens?

The R9 280 i am awaiting is a Gigabyte windforce model with 3 fans.

Thank you very much

[Rominator]

on 1,1 or 2,1 there is no reason to touch r17

[zirkaiva]

I got Gigabyte R9 280X 3GB WINDFORCE OC REV2. I have to use the hybrid ROM for Win 10 in EFI mode, right? Will the ebc flashed bios let me boot Windows 10 EFI or do I have to switch to the original hybrid UEFI bios?

[Yamahawk]

Hello guys,and Happy New Year!
 I just picked up a Mac Pro 5,1 (mid 2010) with the ATI HD 5770 stock video card in it, and want a better card, so I picked up a Sapphire Radeon R9 280X VAPOR-X OC card for CHEAP. ($38) I have built three 2,1 Mac Pro machines, and one 3,1 so this is my first one that isn't obsolete lol...
I know the Sapphire Radeon R9 280X VAPOR-X OC is a great video card as per all the reviews on it, and it should boot into High Sierra without flashing the ROM.
Now... my question is this:
   Should I leave it alone and just deal with the black screen until login, as per my Mac Pro 2,1 with an ATI Radeon HD 5870, or should I flash it with the proper ROM file? I intend to upgrade the quad core cpu to a 3ghz 6 core XEON and run OSX Mohave. I can always leave the ATI HD 5770 card in and boot off it when I want to use a boot screen to have another boot option.
What would you do?

PS- If anyone suggests to flash it, please guide me to the proper ROM file

Charlie
      the Chaplain