Jump to content
7 posts in this topic

Recommended Posts

Hi everyone !

 

I'm looking for any feedback/try/hint/tutorial, well, any information you may have about having multiple video cards in a homebrew mac.

 

I'm not talking about SLI / CrossFire, those have already been talked about and are not supported afaik.

 

For now, I'm willing to use 2 PCIe videocards on my Asrock Conroe XFire-eSataII mainboard. I already have a GF7600GT up and running with 2 19" CRT displays. I also tried a bunch of nvidia cards (6200, 6600, 7300GT, 7600GS), all work fine with QE/CI.

 

I had some BIOS glitches at my first tries but I can now boot Linux with 2 video cards plugged in (7600GT and 7300GT). Mac OS can't boot with that : it freeze quite soon in the boot process (didn't check the verbose messages yet).

 

Is there any way to get this working? The MacPro _can_ drive up to 8 screens with 4 7300GT installed, may a hackintosh do it as well?

 

I'm considering any option : identical video cards, alternative mainboard, mixed nVidia / ATI boards, well, anything that could lead to have 4 screens with QE/CI running.

 

Any help would be greatly appreciated, and thanks for reading this, now be thanked twice for posting any information you may have !

 

best regards,

 

Jerome

  • 5 months later...

I was interested in this awhile back as well, but I had no luck. Real Macs support as many displays as you have PCI video cards, but I tried adding a low-end PCI card to my already dual-monitor AGP setup, and the system crashed on boot.

 

My only thought was to buy an old(er) PCI ATI gfx card that's Mac-compatible (there are a couple on ebay) and to see if using that alongside an AGP or PCIe configuration might work.

 

Has anybody tried that?

  • 1 month later...
My only thought was to buy an old(er) PCI ATI gfx card that's Mac-compatible (there are a couple on ebay) and to see if using that alongside an AGP or PCIe configuration might work.

 

 

A "Mac Compatible" video card wont help. Mac video cards has a special firmware instead of the BIOS/VESA support, in order to be used as the machine's primary video adapter. Also, a mac compatible PCI card will have it's initialisation firmware built for PPC arch.

  • 3 weeks later...
  • 2 weeks later...
  • 6 months later...
×
×
  • Create New...