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OptiPlex 3050 MMF (Micro): Can't get Catalina to work


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I got an Dell Optiplex 3050 Micro (MMF) running on Mojave 10.14.6.


System runs pretty stable except the following:



- Sound.. I got no sound at all (followed some guides for my ALC255 already, but nothing worked yet)

- Wake from sleep (not really necessary, but would be a nice to have)


My EFI is too big to upload, so I just uploaded it to file upload.


Get my EFI here!


Would really love your help on this guys ❤️ 


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I updated my Clover and KEXTS to the newest version. Booting and everything still works fine, still no sound. I just tried like every Injection ID (3,11,13,15,17,18,21,27,28,30,31,99) still no audio. Clover zip attached.


I may have to mention also, that under Devices > Properties (Bottom) there are 2 Devices listed:


- PciRoot(0)/Pci(0x02,0) .  Injection ID

- PciRoot(0)/Pci(0x1f,3) also has an Injection ID 


Everytime I switched the ID I changed every Injection ID to the same.



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O.k., we must look, what is the difference.


1. Which Bios Version you have? I've 1.11.0 installed.

2. Which Clover Version you use? Should be 5xxx Version not a 4xxx. The directory structur has changed.

3. Which CPU have you installed? Maybe you have to generate a SSDT. Mine is working without it(i3 7100T).

4. What happened when the installation stops (screenshot from verbose mode).

5  Can you start/install with the additional boot option -igfxvesa?

6. How much RAM you've installed?


If you can't even start the installation, then try to set/activate  all options in the 'Kernel and Kext Patches' Section of Clover





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