Ryzen 9 9950X3D CCD1 Overload Causing Heat, Power, and System Instability
I'm running Battlefield 6 on a Ryzen 9 9950X3D, and the game consistently overloads CCD1 (the non-3D V-Cache die), pushing it above 90% utilization, while CCD0 (the 3D V-Cache die, optimized for gaming) sits around 65%. This is not just inefficient — it's actively working against the CPU's design.
Here's what's happening:
- Thermals: CCD1 gets unnecessarily hot, raising overall CPU temps during gameplay.
- Power draw: Both CCDs are being used heavily, which increases power consumption — something that shouldn't happen in a game optimized for the 9950X3D.
- Stability: Disabling CCD1 does improve Battlefield 6’s performance, temps, and power efficiency — but it causes my system to become unstable outside of gaming. I've experienced hard reboots and erratic behavior, likely because the CPU is no longer operating as intended.
- Thread scheduling: Battlefield 6 appears to ignore the optimal core layout of the 9950X3D, leading to degraded performance and unnecessary strain on the system.
What I’ve tried (none of which solve the issue long-term):
- Custom User.cfg thread tuning
- Core parking via third-party tools
- Disabling CCD1 in BIOS
None of these are viable long-term solutions. I shouldn’t have to disable parts of my CPU or use workarounds just to get a modern AAA title to run properly. Battlefield 6 needs to be optimized to respect the architecture of AMD’s latest gaming CPUs.
My system specs:
- CPU: AMD Ryzen 9 9950X3D (stock settings)
- GPU: Nvidia RTX 5090 (stock settings)
- 64 BG DDR5
- X870E MOTHERBOAD
