Making an EFI string for dual Nvidia cards (PCIe and PCI)?

[kasakka]

I've got two Nvidia cards in my machine at the moment. A GeForce 8800 GT 512MB (PCIe) and now also a GeForce 6200 128 MB (PCI). I got the 6200 so that I could use three monitors (1920x1200 + 1920x1080 HDTV on the 8800 and 1600x1200 on 6200). Now, the problem is that I can't seem to get them to work at the same time.

I can get either card (at least resolutionwise, didn't check if QE/CI works on 6200, 8800 works 100%) to work when it's the only card in the machine, but how do I get them both to work at the same time?

I've tried using EFIStudio to make the hex and also tried gfxutil to get the device path because I thought that was the problem since EFIStudio seems to try to have the same path for both graphics cards. gfxutil -f display shows only one string.

So to sum it up:
- How do I get the device path (PciRoot) for both cards?
- How do I create an EFI string so both cards work at the same time?

Thanks in advance

[kasakka]

Answering myself. You need to take one graphics card out, use gfxutil to get the device path, then swap graphics cards to get the second device path. Following http://aquamac.proboards106.com/index.cgi?board=hack1&action=display&thread=569 helped me a lot, now both of my graphics cards are working (QE/CI enabled). Getting my HDTV to show picture required a lot of fiddling with the TV settings for some reason but now it also works nicely.

[indraganzo]

 I am trying to run two cards( Nvidia 7600 GS and Nvidia 7300 GS ) on my hackintosh (check signature for specs) too .. I applied the strings for each pci-e with correct addresses, when I plug just one card on any slot it works with no problems ( either primary slot or secondary)... But when I plug both cards at the same time only the card in the primary slot works until the apple logo crashes ..... The card on the second Pci-e slot does not work from the beginning of the startup from the bios level...
   What am I doing wrong??
  is it smthng to do with the mobo?

 I know from the posts that a lot of people run two graphic cards on their hackintoshes I just have to solve this too for my third monitor.
   Please help

[gu3d3s]

Hi,

I have same problem , try w 8800GT and 7300GS in Intel XBX2 board, if boot only w one card all works fine, but is try boot w 2 VGa system freze in Apple logo.

In XBX2 bios no have any option for config 2 VGA cards, only 1# boot device PCI ou PEG.

Any one have luck e Intel XBX2 board?

[kocoman]

Can't get 6600GT and 7300LE (both pci-e) to work ...


running single each will work fine with qe/ci, but when together will just give black screen when loginmanager loads.