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opencore

  1. H

    I screwed up trying to revert from Opencore

    I found my 2009 Mac mini in a box and thought I'd experiment with it. I used Opencore Legacy Patcher to install Monterrey and it worked. However, Wifi didn't work as expected and I also had some graphic issues. So I thought that I'd best revert to stock. I fetched a El Capitan bootable USB...
  2. D

    MP 1,1-5,1 OpenCore Legacy Patcher Help

    Hello Everyone Current Mac Pro macos Mojave 10.14.6 Mac pro 4,1 flashed to 5,1 (dual cpu) 48gb ram rx 580 8gb sapphire samsung nvme 1tb 970 (boot drive) I'm currently using the OpenCore Legacy Patcher 0.6.1 so I can install monterey. I'm currently getting this message. Following this...
  3. Z

    MP 1,1-5,1 how to remove open core 0.5.9 from mohave on mp 5.1

    I think you might not seen my post. So im making a new thread. Can you help me guys? i have mohave 5.1 mp and had to come back to my flashed radeon 7950 because my rx580 died. Now how to remove open core from the efi patition? Just deleting oc and boot from efi part is enough? do i have to...
  4. M

    “Your computer shut down..” error after opencore mac os monterey install on clean ssd on imac mid 2011

    I recently tried to do a bootable opencore Monterey install on a fresh ssd installed on my iMac mid 2011. It got all the way to the end of the install but on the final restart I got the message “your computer shut down because of a problem…” and will not go further than that. I did all the...
  5. B

    MP 1,1-5,1 MAC PRO 5.1 RADEON VII NO VIDEO OUTPUT!!

    Hello everyone! I need some help with my cMP 5.1 Bought a 2nd hand XFX Radeon VII, saw it working on the computer it was pulled off from. Got home, replaced my RX 590 NITRO+ SE with the Radeon VII and got no boot screen on any output port on the GPU. Plugged back my 590 and everything works as...
  6. B

    MP 1,1-5,1 Install Windows 10 next to Monterey w/ OCLP, Mac Pro 5,1

    Install Windows 10 next to Monterey w/ OCLP, Mac Pro 5,1 I'll try to be to the point: I have a Mac Pro 5,1 with an RX 6600XT (patched w/ friends PC for boot screen), dual 1TB NVMEs on a single PCIe, one for Monterey and one for extra space. I also have a 1TB SATA disk that I wanted to install...
  7. M

    White screen Macbook pro 2011 after OpenCore

    Hello everyone, I bought a used macbook pro 2011 for cheep and wanted to remove opencore with Moterey. After putting an old ssd the mac ran windows 10 (as i forgot it was not empty) and with the hdd the old owner gave me, the mac is able to run Monterey. It has been a few days now I was trying...
  8. M

    Auto update to Ventura broke opencore legacy patcher monterey

    Good morning.. Macbook Pro Mid 2012, 1TB SSD and 16GB Ram was working wonderfully with open core patcher Monterey.. So.. I stupidly allowed the mac update to Ventura complete, thinking that it will start and I will simply patch it on boot.. Well it no longer boots. Is there a way to recover...
  9. ZNDK

    OpenCore on MacBook Pro 2012

    I installed Monterery using the OpenCore Legacy Patcher 5.1 on a MacBook Pro 2012 (non-retina) that had served its original purpose. I used that Mac (macOS 12.6.1) for a few days and was presented with the macOS 12.6.1 software update again. I applied that updater with some doubts, and the user...
  10. S

    MP 1,1-5,1 cMP 5,1 Opencore Mojave installed, Sapphire Pulse RX 580 but no boot picker

    Hey guys, I'm in the process of doing some upgrades to my 5,1 cMP. I installed a Sapphire Pulse RX 580 GPU 8GB, firmware updated to 144.0.0.0, clean installed Mojave, and installed Opencore using Martin Lo's package. The GPU works fine but doesn't give me the boot picker. Did some reading on...
  11. ylluminate

    Resolved How to force MacPro5,1 integrated SATA bus drives appear as external (non built-in) in macOS with OpenCore?

    I have a scenario where I'd like to flip the default behavior one sees with OpenCore (specifically OpenCore Legacy Patcher) wherein the integrated SATA controller on a MacPro5,1 shows all attached drives internal (aka `built-in`) drives. Note this behavior is defined in the DeviceProperties...
  12. M

    MacBookPro9,2 (Macbook Pro 13 Mid 2012) OpenCore - No external Display

    Hello all, I have here a MacBookPro9,2 (Macbook Pro 13 Mid 2012) with the latest Monterey in version 12.6. Currently I have the problem that I get no signal on my external monitor via MiniDP. I have tested two different adapters. The integrated display goes black briefly and comes back again...
  13. 2

    MP 1,1-5,1 Set Default Boot OS - OCLP

    Hello again. I am wondering how I can set OCLP to boot into macOS by default when I power on or restart my Classic Mac Pro. I have macOS Monterey and Windows 10 installed, both on their own SATA SSD drive. When I power on the computer it defaults to the Windows 10 drive/OS unless I choose...
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    Bringing open core to the iMac? Like Martin los open core.

    Hello, I’m working on a project my self I have been. I just had throw away my iMac last month becuase I Fried it and I forgot you could buy a new logic board oops. Oh well. Anyways I’m looking at the 2011 and 2010 21” and 27” iMacs and creating an open core package for them just like Martin lo...
  15. jxssica

    opencore Monterey download not letting me use iMac as display monitor

    Hi, I successfully downloaded and installed Opencore patcher for Monterey OS. However, I am unable to boot it my iMac (mid 2011) without the USB - it just runs in a restart loop. I did the download with the hope that I could finally use my iMac as an external display, as it is not supported...
  16. 2

    MP 1,1-5,1 Seeking OpenCore Guidance - 5,1 Mac Pro

    Greetings all. I have been searching for the best way to approach a OpenCore Legacy Patcher installation on my Mac Pro 5,1. The scenario is as follows: I have been running High Sierra up until this point and would really like to go the OpenCore route to gain a boot selection menu with my RX...
  17. haydentech

    Mouse super slow after wake - iMac 2010 OpenCore Legacy Monterrey

    I have Monterrey (12.4) running on my iMac 2010 via OpenCore Legacy, and in almost every respect it's running well and is surprisingly quick -- well beyond my expectations! And I don't even have an SSD! My only problem is that every time the computer wakes from sleep, the mouse is unusably...
  18. A

    MP All Models OpenCore 0.8.0 for LiveUSB?

    Hi, All, Recently, I switch from LiveUSB based on rEFInd and grub2 to OpenCore. My LiveUSB entries under Misc section contains something like: <dict> <key>Arguments</key> <string></string> <key>Auxiliary</key> <true/> <key>Comment</key> <string>Windows 10 Setup</string>...
  19. Eddu Vaz

    MP 1,1-5,1 MacPro5,1 Radeon Pro WX 7100

    Hi Everyone, last few years I got an help here to up my MP to Mojave, updating the boot room, but now can't update de adobe programs, and, all the time I shutdown the mp, after all stuff it turns on. I want to reset the hd and install again to be "safe" im reading the things here I think...
  20. ammoune78

    MP 1,1-5,1 Mac Pro 2009/2010/2012 SMC

    Hi there guys! I'm wondering how i can dump the Mac Pro's LogicBoard/CPU-Tray SMC's as well. Is there a way to dump the content of both SMC chips, using smcflasher.efi from opencore shell or anything that can be able to do that? I mean from the 3 Mac Pro's 2009/2010/2012? The reason why i want...