open core

Hello everyone I am trying to figure out why my cMP3,1 won't sleep. I've successfully installed Monterey using OCLP and everything works great apart from sleep. When I select –Sleep video is cut, the screens go to power save and the HDDs are spun down. The white power button light starts to...

(Apologies if this is the wrong forum or thread, I'm new to this site) The past week, I've been attempting to get OS Monterey 12.7.3 on my Mac Pro 5, 1. It has been nothing short of a headache and it's at a point where I don't know what to do. The initial update worked fine enough, however it...

Hi, just updated OCLP on my iMac and was running Ventura fine. It won't log in after upgrading and reapplying root patches saying it needs to optimize. It just sits on the log in screen with an odd spinning circle underneath. So two thoughts - be careful upgrading the latest OCLP - any ideas...

Hi, I have a Mac Pro 5,1 with a Titan Ridge 2.0. Trying to get Thunderbolt to work but I'm new to this. Can anyone help with a step by step? Here's what I have and know: Mac Pro 5,1 running Catalina. 32Gb Ram, RX580 Graphics and a Titan Ridge 2.0. - The TR has a jumper between pins 3 and 5...

Does someone have any suggestion about the best way to reset a sold Macbook retina 12" 2016 running Sonoma on OpenCore? Thanks

I have two 2011 27 inch iMacs 16GB with AMD 6xxxx graphics card and have given them a new external ssd (€180), installed open core and did a fresh install of sonoma and it works fine, the boot is faster than it ever was ;-) Office 365 all apps work fine Adobe cloud Photoshop crashes but web...

For months, I've had a perfectly working system using current OCLP, Ventura and Catalina. The other day, I started up as normal in Ventura and it locked at the Apple Logo. I reset the NVRam from the OC boot picker. It still wouldn't boot Ventura. It also wouldn't even see the external USB I...

Hello, with open core can I use a pc bios on the 650m on my 2012 21” iMac and upgrade it to 2gb of vram from 512mb using a pc bios and use open core to get the boot screen back?

Looking for some feedback on the risks of using OpenCore. I have a 2011 iMac that I use for mostly a media hub (photos, music, movies, idevice syncing and backing up). I also use it to share my media library to my Apple TV. What if any issues should I be aware of? Is it even worth doing if...

Hello. I have MacPro 4.1 2009. I flashed it to 5.1, then put Nvidia GT710 (because it have Metal), flashed to firmware to 144.0.0.0.0 and install MacOS 10.13 on NVME via 2$ aliexpress PCI-E NVME adapter. Next I want: buy RX 580 video card reinstall MacOS 10.13 on 12.3 wia OpenCore...

Hi, trying to create a bootable USB installer via the OpenCore Legacy Patcher guide to get Big Sur running on my 2011 Imac. I followed the steps in the guide. As I have an non-flashed Nvidia GPU in the system I need to bless the EFI folder of OC as advised here. Completely stuck at this point as...

My system: - MacPro 5,1 2 x2.66 6-core intel Xeon - 64 Gb ram - Radeon rx580 8gb - 4 SSDs in standard HD sled Bays - installed OpenCore… I did this because I was having computer issues last week…. trying to debug and test things I got to a point where I thought a boot picker...

Just wondering if someone could point me towards a real simple "idiot's guide" (if such a thing exists?) to setting up Open Core? I have a 5,1 cMP on Mojave with an RX480 & I want to be able to dual boot into Windows. From what I've seen so far it doesnt seem "too" complicated, but I always...

Hi all, My Mac Pro 4,1 (flashed to 5,1) enters a reboot loop when I start up the Mac. It keeps looping indefinitely until I manually turn it off by holding down the power button. When I turn it on again, or for the first time, it sometimes makes it past the boot screen and shuts down at the...

I'm trying to troubleshoot DaVinci Resolve not starting on 5.1 Mac Pro with Big Sur (Open Core). [My board info is 7.1 and I'm not using Lilu or whatevergreen currently. I had the same issued when I used them before, so running without is an effort to try all options.] It seemingly hangs in...