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Cant install ML with PCIE GPU on ASUS z68 MB

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Apr 4, 2012
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Motherboard
ASUS Maximus IV Gene-Z/Gen3 // HP Probook 4540s
CPU
i7-2600k // i3-2370m
Graphics
ASUS NVIDIA GTX 560 TI // HD3000
Mac
  1. 0
Classic Mac
  1. 0
Mobile Phone
  1. Android
  2. iOS
Hello everyone,
everything worked perfect with my old MB Gigabyte p55a-ud3 and Asus gtx560ti.. it was already boring being all perfect ;)
So i got now a hardware update to MB Asus Maximus iv Gene-z/GEN3 (Z68) with i7-2600K and some more RAM, but same gtx560ti.

Of course i installed the modified bios 3501, i also tested the 3305 and their original versions ..

In beginning of installation, directly after Apple-Bootlogo there is no welcome screen, the monitor gets no video signal anymore.
I did many tests with bios-settings, the only way to get installed is , set primary GFX to MB GFX, (not PCIe), and connect a second
monitor connected to the MB HDMI-port.

Of course i want to use the GTX560ti as primary videocard :)

Everything else works fine after installation and multibeast, but always with two monitors (one GTX, one HD3000)

I also tested a new installation with two monitors (BIOS: primary graphics adapter=PCIe) checking if the screen is on the internal
graphics adapter after apple-logo, but there is nothing on each screen, it seems that the systems stops or hangs after the apple-logo.

i read the forum since two days (and nights ;) ) but there is no solution for this. graphicsenabler yes/no pcirootuid=1/0 ... nothing helps.

Perhaps someone had the same problem with ASUS z68 boards and an NVidia graphics card.

Thanks for your help !!
 
I have checked now the console log ..

starting with PCIe as primary adapter in BIOS :
kernel : KEXT COM.Apple.Geforce - library kext com.Apple.nvdaResMan not found
windowserver : CGXDisplay driver initialized:no display drivers loaded
kernel : NVDAGF100HAL loaded and registered
kernel : NVDA,display-A : Not usable
kernel : NVDA,display-B : Not usable
.. the system stops after Applelogo with blank screen.

when starting with iGFX as primary adapter in BIOS :
kernel : KEXT COM.Apple.Geforce - library kext com.Apple.nvdaResMan not found
kernel : NVDAGF100HAL loaded and registered
.. the system runs ..

everything with modded 3305 BIOS .

Hope someone can help me or has an idea what to check..

THX a lot
 
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