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[Guide] macOS Sierra 10.12 - Dell Optiplex 780 (760) (755) (790) (990)

* * * * * 5 votes Dell Optiplex 780 760 macOS 10.12 Sierra 755 790 990

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#821
ricoc90

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@ ricoc90

The GT210 works very well. No problem.
So far only HFS tried. No trials with APFS here.

Yeah, I'm suspecting that my GT710 is the culprit here... 
My Optiplex 790 just arrived so I'll put the GT710 in there and install High Sierra on it to see  how it runs

Otherwise GT210 it is, thanks  :D 

yVZjOmG.jpg



#822
polyzargone

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Thank you! My audio now works flawlessly but since the DSDT is recognized the Nvidia webdriver isn't working anymore. I already removed the NVdisable boot argument but that doesn't help.

 

 

Try this one :

Attached Files



#823
ricoc90

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Little update:
While the GT-710 does work on my Optiplex 755 under High Sierra, it does not work on my Optiplex 790 under High Sierra.
The nvidia drivers are not being loaded. I'm installing Sierra now to see if the card works there.

 
Nevermind. I looked into the DSDT and saw an empty GFX0 block so assumed there was no HD5450 patch and installed the OS. But actually there was...  :hysterical: 
Removed it, works fine now

Update:

Strange thing. I installed High Sierra fresh on my Optiplex 790, and it was really slow just as how it was on my Optiplex 755.

Now I put the SSD's from my Optiplex 755 into my Optiplex 790. I didn't reinstall macOS, i only replaced the Optiplex 755 applealc as well as the Optiplex 755 DSDT with the ones from 790, booted High Sierra and it's amazingly smooth  :huh: 
 



#824
CptanPanic

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Ok I installed the Visiontek 5450 1gb, on 10.12.5 used the DSDT and config.plist from #1, installed clover as instructed.  I then had to add NullCPU to get past kernel panic, it boots and after 2mins of sound assersions just get a black screen.  At one point I hit a key and got a cursor but that was it and no login, and then it went away.  Below is the GPU info from Linux.   What to do?  Also my BIOS is A13, maybe I should update it?

 

Adapter  0    (BN=01, DN=00, PCIID=68F91002, SSID=54501545)
    Asic Family        :  Cedar
    Flash Type         :  M25P10/c    (128 KB)
    Product Name       :  CEARD DDR3 128X16 1G A5C11LAA.CGK 2013
    Bios Config File   :  A5C11LAA.CGK
    Bios P/N           :  113-C02601-001
    Bios Version       :  012.020.000.064.000000
    Bios Date          :  12/11/13 04:24
    ROM Image Type     :  Hybrid Images
    ROM Image Details  :
        Image[0]: Size(59904 Bytes), Type(Legacy Image)
        Image[1]: Size(57856 Bytes), Type(EFI Image)
 


#825
jonas21

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It works! Thank you very much :)

#826
CptanPanic

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Anyone have any experience flashing BIOS on these comps?  I downloaded from A13-A20, and the only one that actually gets to the flashing portion is A13, the rest just close after checking configuration without any error.  I am using a FreeDOS USB with bios updates downloaded from DELL.



#827
MacPeet

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Some news:

Without Injector iGPU many AMD graphics cards no longer work with HighSierra.
 
However I have made a rollback of Sierra with following Kext's and the Optiplex780 works:
 

AMDRadeonX3000.kext

AMDRadeonX3000GLDriver.bundle

IOAccelerator2D.plugin

IOAcceleratorFamily2.kext

 
Unfortunately of course not update safe.
 
Audio works with flags -alcbeta -lilubeta and HDMI audio works as always with Shrike.
 
Attached File  dell_HD5450_HighSierra.png   1.51MB   2 downloads


#828
ricoc90

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What internet kext are you guys using on the 790 by the way?

I'm using AppleIntelE1000e.kext. Works fine on my 755, also works on my 790 but alot of websites are loading really slow or not at all. 
Videos do not always load, same as songs on Spotify

 

Edit:
 

Switched from AppleIntelE1000e to IntelMausiEthernet, looks like that solved it.







Also tagged with one or more of these keywords: Dell Optiplex, 780, 760, macOS, 10.12, Sierra, 755, 790, 990


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