there is ONE MORE THING
Excotic cards like the 4890 carries a Device ID that OSX graphics driver does not recognize. To add support, you need netkas QE CI patch.
Without this, the card will run, but at low resolution and no 3D graphics.
These can be installed with Zeus under Driver. Further documentation can be found inside the Help tab.
Even if I asked God to create a Mac 480GTX and he did, it would not work in a Mac. There are no drivers in OSX to run the card.
Naaak do this:
download zeus
open Driver tab
Select card and OS and then Download. install that PKG
now try reboot.
Are you running one of the newer XFX 4870s? ie...one of the ZWxx series?
I ask as someone with an earlier ZHxx series card reported no issues with Dual Screen in 10.6.3
Trying to figure out which cards are going to be needing ongoing support versus those golden early XFX 1 Gig cards which have had Dual Screen since 10.5.7
pardon me for going little off the track...
I like nVidia cards overall and I'm not very familiar with ATI in general
is it possible to do same kind of thing with nVidia instead of ATI?
I have old Mac Pro 1,1 what's the fastest card I can put in there?
Cindori, I picked up a XFX HD 4890 1GB ZSFC Ver 1.6 because there was a known working rom (thank you search feature). I am able to boot to Windows with it OK but not able to get OSX to boot completely. I know this because the Log Me In program never launches to allow me to remote connect and flash the card using Zeus. When I put the 1900XT back in I am able to boot. Now I did have a problem with the last XFX card that I was not able to get working and bricked.... Would there be any reason OSX would not work because of this? Atleast with the last XFX card I as able to boot to OSX in order to do a remote connection. Any ideas? Is it ok to flash the card in dows with the ATI flashing tool?
I'm having this exact problem. Card flashed with 13.rom, installed exotic driver pack. Works under windows, no boot on osx. Have you solved this, djspawn?