4870 Sapphire flashed for mac pro 1.1

[vworks]

I did it yesterday!!
It works perfectly in a mac pro 1.1 2ghz.
It's the Sapphire edition of 4870 1ghz.

I will give details later ( I know the has been done a long time ago but a lot of links are dead and some users need to flash nowadays...) and will attache the .rom I used.

Thanx to macrumors and a lot of research on the web.

 

[vworks]

Hi again.
I used this guide to flash the card - http://www.overclock.net/t/1353325/tutorial-atiwinflash-how-to-flash-the-bios-of-your-ati-cards

First , of course, under BOOTCAMP, I backed up the ROM of the GPU. Then I flashed it with the ROM I attach here.

I have this card - https://www.cnet.com/products/sapph...aphics-card-radeon-hd-4870-1-gb-series/specs/

Hope it helps.

PS. The card gives bootscreen and is fully recognized under os 10.6.8 in my Mac pro 1,1

 

[CapnDavey]

4870 is still a good option on that mac its what i did almost 4 years ago

 

[Ned603]

Hi. Looking for some help. I have a Mac Pro 1.1 that has ATI Radeon 5770 flashed with a Dell boot screen enforcer running Yosemite. Recently I had a kernal issue that I used this site to correct. Now I get no image. I am using HDMI. I've tried two different cables...no luck. I just did the oven bake fix and no image. I get the dong...fan on GPU and computer fan. Lights on RAM cards flash then all go out but for one on top card. After a while computer restarted on it's own then shut off all together. Other than a new graphics card are there any other options?
Thanks Ned

 

[DS-1]

Hi @murnau!

I have the same GPU you have and I need to flash it for MAC. I've tried to flash the .ROM you attached, but the card still works on a PC and not on MAC.

Do I need to modify with any tool the .ROM you attached?

Thanks again for the reply!

 

[lotech]

Thanks again for the ROM, ended up sticking the card in a windows 10 machine I had on hand and used AMDwinflash to do all from the desktop. Worked first time.