Hi all, I have a 2012 Mac Pro 5,1 (specs listed at the bottom), running Monterey 12.7.1 through OCLP. I am currently on version 14.4 of OCLP. I created a USB Installer for Sonoma as I need Sonoma to update some software that I use for video production. I was previously on OCLP 1.3.0, and I recall hearing somewhere, maybe elsewhere on Reddit or another forum that 1.3.0 had boot issues. I do not remember if I had these issues then or not/if I used the boot menu then.
I can enter Recovery Mode through holding Cmd + R after the boot chime, but holding Option after the chime basically just prevents the machine from doing anything at all. I do not get a "no signal" notification on my display, any my keyboard lights up, so it is doing something, but the screen is black and there is nothing. I can power it down and boot normally, but in order for me to update my machine, I obviously need to be able to boot from that installer thumb drive.
Any suggestions as to how I might remedy this? Thanks!
2012 Mac Pro 5,1 Specifications:
- 2x 3.46 GHz Intel Xeon X5690 Processors (total of 12 cores, 24 threads)
- ASRock Radeon RX 5700 XT Phantom Gaming Elite 8GB GDDR6 Graphics Card + Pixlas Mod (I do have a spare Sapphire RX580 that can go back in it if needed to remedy this issue, but I recall having boot issues with it as well).
- 96GB (6x16GB)PC3-8500R 4Rx4 DDR3 ECC Memory
- 1TB NVMe 3.0 Boot Disk through a PCIe adapter card + Time Machine Backup Drive + a host of other drives
- WiFi + Bluetooth Card upgrades
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