Zen 2 power reporting

porina · January 18, 2020

tldr: is there a definition for what Ryzen Master shows as SOC power? Should PPT = Core power + SOC power? It doesn't.

Decided to move bits around and pair my Ryzen 3600 system with a RTX 2070 to drive my shiny new OLED TV. On updating Ryzen Master, I noticed the display was a bit different than the older version I used before. It now reports:

PPT: tootip says "Total Socket Power CPU"

Core power: "VDDRCR CPU Power" presumably this is the power used by CCD, or is it? Is core power on Zen 2 literally just the cores, or does it include whatever else is on CCD like IF.

SOC power: "VDDRCR SOC Power" If this was Intel I'd treat it as uncore, but is that the case here? The Ryzen Master guide shows the memory controller in the SOC power domain so is the SOC the IOD? There may not be a physical and logical connection.

Why I'm asking? If I run Prime95 with 6x128k FFT, it hits the 88W PPT limit. In that state, it shows 68W Core, 10W SOC. I have another 10W unaccounted for. The two documents on the same download page as Ryzen Master don't go into any more detail how these values are defined.