I found an upgrade bundle on Apple's site for 10.13.2, but I have to have High Sierra already on my machine to use that. However the only OS upgrade I can get is 10.13.5. Problem is, Pro Tools shows the latest approved OS in High Sierra 10.13.2. Discovering 3rd party plug-ins are starting to not be compatible with with my current OS Yosemite 10.10.2 or 5 or that matter. I am a Mac owner and registered as such and all OS updates are free. I looked over the guidelines and doesn't seem like it would be. I am quite technical, but I got tired of fiddling with OC configs.I hope this is not taboo. If you are not experienced and need to run systems past Catalina, OCLP is much easier than OC. Ventura works, but Monterey is bulletproof. I also learned to keep older installs around until OCLP is fully settled. Never delete the Mojave install as a goto in case of trouble. I currently also have fully configured and updated installations of Monterey, Ventura, and Sonoma. I have an upgraded WiFi/BLE card, so I have full continuity with SIP enabled after patching some config plists. I also have a full config of DosDude patched Catalina as a base config to clone and upgrade. I always have a disk with Mojave and BootCamp Windows 10 - strictly "legal." I was running Monterey with my flashed RX-580 until Logic Pro upgraded requiring Ventura or Sonoma. I have been very happy with OCLP, which is now on 1.2.1 or 1.3 nightly builds. Once in Mojave, the card should be supported. You will not see a boot menu with the unflashed card, but if Mojave is the only OS, the system should boot into that. Do three PRAM resets in a row (Cmd-Opt-P-R on start) to attempt to build NVRAM. (unplug, wait 30 sec, plug in, wait 10s before boot.) Remove all drives but the one with Mojave, which is natively supported How did you start Windows 11? If it is using UEFI boot instead of legacy BIOS, it can damage your NVRAM. There's no power light, but the GPU fan spins.Īny insights or guidance would be immensely appreciated. I've disconnected all devices except the graphics card (including the SuperDrive) and removed the battery, but the screen still shows nothing. Regarding the BootROM version, it was 144.0.0.0. For additional information, when connecting the ATI 5770, the fan spins slowly, but with the RX580, the fan doesn't spin at all. I'm reaching out for help to determine if I may have bricked the Mac Pro, if the PSU failed, if the motherboard is damaged, or if there's another issue. It's challenging to troubleshoot without another nearby cMP to analyze piece by piece. I'm now considering that I may have unintentionally corrupted the BootROM while in Windows. I've tried unplugging, reconnecting, and testing with different GPUs, but the result is always the same. I hear mechanical noises 2-3 times (superdrive noise), but the power button doesn't light up, and there's nothing on the screen. When changing the graphics card to install High Sierra, a routine I've done countless times, the computer fails to start properly. Mojave fails to start, so I decide to reinstall High Sierra, to start again all the process. This morning, after restarting, OpenCore shows up. I didn't flash the RX580 BIOS, as it appeared to be the standard version, although I encountered a strange error where GPU-Z initially recognized the BIOS, then stopped, preventing me from flashing it. While in Windows 11, I noticed slow internet speed (maybe this info helps), likely due to drivers, but I didn't spend much time there. Using a Windows 11 USB drive and via OpenCore EFI, I installed windows on a secondary SSD (Mojave was on an NVMe). I noticed the RX580 fan wasn't spinning with this OpenCore version, leading me to suspect it had been used in mining and needed a BIOS flash. The problem arose when installing Martin LO's OpenCore it allowed access to Mojave but consistently froze. I installed High Sierra with a GPU that allowed a boot screen, then switched to RX580, upgraded to Mojave, and attempted the leap to Big Sur. So, I tried Martin LO's OpenCore version. I attempted OCLP, but it wouldn't boot with the card connected. It was a joy to use until I encountered issues trying to run Big Sur with my Firewire audio interface. To pursue my dream of a home studio, I bought a Mac Pro 5.1, upgraded the processors, expanded the RAM to 96GB, and added an RX580. I'm unsure about what's gone wrong with my cMP, and I desperately need assistance. I've always been a silent observer on this forum, but unfortunately, my first post is a cry for help.
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