7950X3D not using first thread

7950X3D not using first thread

Hi,

I've got a 7950X3D thats less than a year old, and no matter what I do, even if the task manager claims that its at 100% utilization, the first thread will only sit at about 5%. not sure whats going on here, any help would be appreciated.

Screenshots of task manager: https://drive.google.com/drive/folders/1Txbp_dacGZ3myTJRg0TLXzvXy6cDSr4b?usp=sharing

EDIT: additionally, just in case someone asks, the cpu has never overheated, so the core shouldn't be dead, obviously the other thread on that same core is alive too. also, I should mention that core parking seems to be working as normal, aside from it not parking the first thread, all others up to thread 15 all park as normal. 2nd EDIT: just restarted my PC, and noticed that the first thread actually helps during startup, but then turns back off when its finished/under load, what the hell is happening?

Computer Type: Desktop

GPU: RX 7900XTX

CPU: Ryzen 9 7950X3D

Motherboard: Gigabyte X670 Aorus Elite AX

BIOS Version: FB3b

RAM: 64GB Corsair 6000 Mhz CL30-32-32-76

PSU: Corsair RM1000e

Operating System & Version: WINDOWS 11 Home

GPU Drivers: AMD Graphics 24.10.1

Chipset Drivers: AMD X670 Chipset 6.07.22.037

Background Applications: ICUE, Adrenaline, Steelseries GG, Spotify, Discord

Description of Original Problem: First thread not being used when under load, however, for some bizarre reason, the thread activates and helps during startup

Troubleshooting: Haven't done much troubleshooting yet, other than restarting system, I have reinstalled windows on this system a while ago, and i'm fairly certain this problem was present before the reinstall.

Reposted due to no responses.