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I put up a new post here with the particulars. My new Precision has an i7-10700 and a 460W PSU. :) Thanks for taking a moment to comment here, I really appreciate it. -Zak-

Still trying. Updated EFI and log file attached, along with photos of the text. I'm working through the Comet Lake installer guide here: https://dortania.github.io/OpenCore-Install-Guide/config.plist/comet-lake.html and the text on screen goes all corrupted-looking with a prohibited sign...

Turns out the Opti only has a 260W psu and can’t be easily upgraded. That plus the Dell DVMT BIOS thing for onboard graphics tells me I should move on; I’ve ordered a Precision 3650 instead. :)

No dice so far, sadly. I've posted a new thread asking for help; once I'm up and running I'll definitely share it back with everyone. Fingers crossed!

Dang it! Using the OpenCore install guide at https://dortania.github.io/OpenCore-Install-Guide/config.plist/comet-lake.html#starting-point For iGPU it links out to this WhateverGreen FAQ: https://github.com/acidanthera/WhateverGreen/blob/master/Manual/FAQ.IntelHD.en.md I'm ... not smart...

I'm totally stealing that PLIST for my (not yet shipped) Optiplex 7090 with i7. :) I feel good about my chances; those are effectively identical chipsets.

Hooray! That did it! Thanks, y’all, I really appreciate it. :)

I guess not, just tried it that way and got the same behavior. Is there a "verbose" boot mode or a log somewhere that I can use to see what's happening?

Like this? EFI/EFI/CLOVER/config.plist: <key>Boot</key> <dict> <key>Arguments</key> <string>dart=0 nv_disable=1</string> <string>agdpmod=pikera</string> <key>Debug</key> <true/> <key>DefaultVolume</key> <string>MacHDD</string>...

Long time lurker, first time poster. Hi everybody! [waves] I'm following this guide. I have successfully: Downloaded the Mac OS installer on my old MacBook Pro Generated a bootable USB stick Booted the Alienware Selected the Boot macOS Install from Install macOS Catalina Seen the black screen...