How to Fix Ryzen 3900x - only half of threads being used?

By Freirburro
0

How to Fix Ryzen 3900x - only half of threads being used?

This mini-guide provides a structural approach to troubleshoot and fix the issue.

Prerequisites

  • Confirm your hardware specifications (CPU, GPU, Motherboard).
  • Ensure you have a bootable recovery USB and backup your EFI.

Fix Steps

  1. Check if your GPU requires WhateverGreen or specific boot-args (e.g., agdpmod=pikera).
  2. Ensure Metal acceleration is fully supported for your macOS version.
  3. Update Lilu and WhateverGreen to the latest versions.

Verification

  • Reboot and verify if the functionality is restored and stable under typical usage.

Original Question:

Ryzen 3900x - only half of threads being used?

See picture for reference. macos does correctly identify the 24 cores of the CPU (it has 12 cores, double the threads) but the odd threads are never used. Did I miss a thing in setting up my hackintosh, or is this expected behaviour on a AMD hackintosh?

In Windows, all threads are actively used, so apparently it's not a BIOS setting.

https://preview.redd.it/kv3ooilmk1e61.png?width=415&format=png&auto=webp&s=48a6246fff75e52fed2faa18aab8d998e7a4e90e

submitted by /u/Grabbels
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