I even tried removing a few hard disks but that didn’t help either. I have another monitor connected to my graphics card via DVI (dell 30″).

I know this works because 1 in 10 times rebooting it fires up just fine. Without the monitor turning on at boot I cannot get the brightness control to work because that requires a second USB cable from the monitor be connected. Is there a way to provide extra power to the Titan Ridge card? I have an RX580 graphics card and it is using two 6-pin power connections.

This makes me think that the monitor is pulling to much power on boot to work correctly.

Sometime I get the error “Unplug he accessory using too much power to re-enable USB devices”. I have to unplug and plug the monitor from the Titan Ridge card and then it turns on and works every time. However, when I connect a 27″ Thunderbolt display it will not work on boot most of the time (Sometimes it works from boot but most of the time it does not). I installed a Titan Ridge 2.0 card and it works without an issue with OpenCore. Lastly, if you have a modified Titan-Ridge PCIe Thunderbolt card installed in slot 4 this EFI will If you are using an AMD card based on Polaris or newer (RX 460 or newer) hardware GPUĪcceleration is activated for encoding and decoding both H.264 & H.265 (HEVC). Well as the option to reset the PRAM from this menu which is labeled “Reset NVRAM”. OpenCore adds a boot selector on startup for both AMD and Nvidia (Keplar) based GPUs as You can also boot into older versions of macOS using OpenCore and as it provides a basic driver for the graphics card you could boot into snow leopard for example with AMD RX 580 but you would not have any acceleration. The Nvidia cards are having some issues but we will try to correct this once the final release of Monterey is available. If you are using an AMD card it will also work with macOS 12.0 Monterey up to Beta 7. This version of OpenCore works with macOS 10.15 Catalina and 11.0 Big Sur. NVIDIA KEPLAR BASED GPUS (GTX 680, QUADRO K5000, GTX 780, QUADRO NVS 510) Here is alist of cards that we know to work but there are more available:ĪMD RX 560, 570, 580 & 590 (10.12.6 SIERRA +) You will also require a metal-capable graphics card the same as with 10.14 Mojave. These EFI’s will work on Mac Pro 5,1’s or 4,1 models that have been upgraded to a 5,1. If you have a quad-core or six-core processor please use the EFI from the single socket folderĪnd if you have an eight-core or twelve-core model please use the dual-socket EFI. Required for correct functionality on later versions of macOS Big Sur thanks to user Syncretic The is the newest release of OpenCore (0.7.3) which has been updated with the patches

Will work for macOS 10.15 Catalina and 11.0 Big Sur OpenCore is required to be able to run newer versions of macOS later than 10.14 Mojave and

Mac pro 5.1 metal gpu