Yes, these settings are designed to work safely with your AMD Ryzen 9 7950X3D.
Yes, these settings are designed to work safely with your AMD Ryzen 9 7950X3D.
CB23 operates correctly and the results match those found online for the CPU.
There are many more benchmark tests available than Cinebench. Tools like Y-Cruncher or PYPrime might actually slow you down significantly if EXPO is enabled. 1.45V VDDIO and 1.3V SOC are completely fine, I have no concerns about that. Keep EXPO on. Which memory kit are you running? Also, what motherboard and BIOS version do you have?
I'm unsure why it's setting the default to 1.45V VDDIO instead of 1.35V when EXPO is active. This memory module should normally switch to 1.35V VDDIO under those conditions. Could you clarify your motherboard and BIOS version? Also, please specify what you mean by "much higher" – it will consume more power at idle, though it stays within a low watt range.
Expo adjusts the SOC voltage to 1.35V while VDDIO stays at 1.45V. I manually adjusted it to 1.2, which works but I still believe it's not allowed to exceed 1.3V for the SOC voltage. The MSI Tomahawk WIFI AMD X670E is running DDR5 AM5 dual channel with the latest official BIOS version 7E12v1E.
I made a mistake—the RAM VDD is configured at 1.35 V. The current readings show other voltages when Expo is active and the SOC level is at 1.2 V.
It seems unusual. It's conceivable MSI made an error with the newest BIOS update, so I’d revert it to something like 7E12v19 just to test. The 1.35V setting shouldn’t be allowed on SOC voltage in BIOS versions post-AGESA 1.0.0.7a, meaning either the settings are incorrect or MSI has definitely misconfigured their latest release. Normally, AM4 boards should align VDDIO with RAM VDD/VDDQ. This suggests MSI likely messed up the BIOS and you should downgrade it.