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Perfect then, thanks. In this case I would recommend anyone trying to get OSX running on their HP7900 to follow P1LGRIMS guide. A Clover or OpenCore 7.9 (which was the version I tried) installation does require additional troubleshooting or might not work at all.

Thanks P1LGRIM, I did not find anything useful before, but after some more digging I found this thread which was really useful for understanding the whole issue. So for anyone facing the same issue, I recommend to check it out. The problem is that the card that I bought is a "Femi" card but only...

Thank you, I got confused about the arguments. Unfortunately both options, Yes and No, don't change the situation. Is there anything else that I could do?

Thank you, I installed it according to your guide and everything works smoothly. Even adding TRIM support for my SSD and PS2 kexts with MultiBeast was successful (though there is no click and hold support for the mouse so I replaced the mouse with an USB mouse). With the onboard graphics I am...

Thanks for your help once again! I am using PS/2 keyboard and mouse that's why I added the kext. I deleted it know and used a minimal setup with only the basic kexts, the arguments IGPEnabler=1 -v -x -f rootless=0 (and different variations of these) and removed the graphics card but now I have...

Thank you. Unfortunately using rootless=0 leads to another error (attached here). Do you think there is any way to get the system booting or should I try it without starting with clover and follow your guide from the beginning (If I understand correctly, in your guide you started with an...

Thank you! nv_disable=1 seems to have solved the graphics issue, after it is confirmed that the argument is used ("NVDATesla: disabled by nv_disable=1 boot-arg") the system gets stuck at the "Missing Bluetooth Controller Transport!" line for 5-10 minutes. Then it switches to a white screen where...

After some searching online I found the following guide: https://dortania.github.io/OpenCore-Post-Install/gpu-patching/nvidia-patching/ Could it be that some patching like this is necessary for my system? If yes, how can I use the tools that are mentioned on the page without a working OSX on the...

I already set Serial Port A to "Device hidden", there does not seem to be any further option for deactivating serial ports in my bios settings: http://h10032.www1.hp.com/ctg/Manual/c01527227.pdf

Hey there, I am trying to set up OSX Mountain Lion on my HP Compaq DC7900 desktop computer and ran into an issue that I don"t know how to fix and would be happy if someone could help me with it. After finishing the setup I cannot boot the installed system and I get stuck with the line "[AGPM...

Hi everyone, I am trying to install OSX Mavericks on my HP Compaq DC7900 Desktop computer and after already solving some issues by myself, I am stuck now getting the installer to boot on my system with the last line stating "(...) Missing Bluetooth Controller Transport!" I already tried to...