Install freezes at 12 min; AMD Threadripper 3970x

maccaroni

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AMD OS X Member
Jan 9, 2026
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CPU:
AMD Ryzen Threadripper 3970x
I was gifted a Threadripper w/ motherboard from a friend so I decided to try my hands at a Ryzentosh before I go back to a Apple. The website has been super helpful in getting started, but after many adjustments and attempts I'm stuck with the same results. Install of MacOS Ventura / Sonoma hangs at 12 min and computer freezes up (mouse stops working). I've tried different OpenCore versions, Quirks, boot-args, kexts, MMIO Whitelist with the same results. I've also patched for the 32-core Threadripper in the kernel but I feel like there could be patches I'm overlooking in the ACPI. Any help getting the install done would be appreciated.

Build:
AMD Ryzen Threadripper 3970x 32-core 3.7GHz
Gigabyte Aorus Trx40 Xtreme ver 1.1 (BIOS Feg latest)
G.Skill Trident Z Neo RGB 192B (6 x 32GB) 2666MHz
EVGA NVIDIA GTX 1080ti Hybrid (temporary until my RX 6600 arrives)
WD Black SN7100 1TB PCIe 4.0
SanDisk 64GB UHS-I USB 3.2 (installer thumb drive)
Dynatron L29 Liquid Cooler (280W TDW)
Lian-Li Edge Gold 750W PSU
Lian-Li Odyessey X Black Ed XL-ATX Case

OpenCore 1.05
MacOS Ventura (latest)
 

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The most common cause for the installation stalling at the 12 minutes remaining mark, is a borked macOS installer. It is not likely to be a issue with the OC EFI, as an issue in the EFI is more likely to cause an early kernel panic.

You would be advised to delete/erase the current USB installer and macOS application. Download a new installation app using gibMacOS and recreating your USB installation drive. Obviously you have a working OC EFI, so the hard part has already been done.
 
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I tried the install using MacOS Sonoma. This time the system rebooted at 12 min, and I expected to see the partition on the SSD appear, but no luck. I’ll try a Monterey installer when my Radeon card arrives; GeForce card may have pulled too much wattage and the PSU fan stopped working.
 
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