For incredible graphics processing power, the ATI Radeon HD 4870 with 512MB of GDDR5 memory is the ultimate choice for visual creative, scientific, and technical applications. ATI Radeon HD 4870 includes two video ports: one Mini DisplayPort and one dual-link DVI port.

• Ati Radeon Hd 4870 Mac Pro 1.1
• Ati Radeon Hd 4870 For Mac Upgrade
• Ati Radeon Hd 4870 512mb
• Radeon Hd 4870 Software

March 14, 2009

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Flashing 4870 to work in MacPro

If you dont like minidisplay port or dont want to pay 3 times more for a card from apple, here is directions for how to get 4870 card working in macpro.

1) go to here and download 4870.ROM.zip file, and unpack it

2) backup rom of 4870 card, you can use latest gpu-z utiliy for it

3) flash you 4870 card using dos usb stick and atiflash

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atiflash.exe -p -fs -fp 0 4870.rom

I’m not going to explain how to do it, all info is available over net, use google.

4) install drivers pkg for 4800 from #radeonhd channel on irc.osx86.hu (first link in topic)

after installing pkg remove /System/Library/Extensions/Natit.kext

5) reboot, should work just fine

Ati Radeon Hd 4870 Mac Pro 1.1

both dvi ports works.
it was tested with standart card (2dvi and 1 svideo ports), nobody tested with nonstandart cards (with vga/hdmi/DP ports)
known problems : vga (with dvi2vga) doesnt work.

WARNING: I’m not responsable for any damage you can do to your system, Do it all at your own risk.

Ati Radeon Hd 4870 For Mac Upgrade

P.S. once you update to 10.5.7+ u can forget forever about step 4

Ati Radeon Hd 4870 512mb

Radeon Hd 4870 Software