5950X idle and load voltages the wrong way round (Strix X570-E)

[dvs8]

Hi there,

I've been googling around for some time now and haven't yet found a conclusive reason why my system behaves the way it does, symptoms being high idle and load temps and thusly loud fans.

Cutting right to the chase, this is normal idle desktop with nothing running:

Spoiler: Exhibit A

That's actually the lowest temperature I've ever seen here, normally it's around 50-60C at idle. But you can see locked to base clock and the SVI2 TFN core voltage sensor is pinned to almost 1.5V

Then let's fire up Cinebench to make use of all those lovely volts:

Spoiler: Exhibit B

Temperature goes through the roof, the clock speed boosts (a bit), and the voltage hits the floor.

This is on an Asus Strix X570-E with optimised defaults + XMP + PBO enabled (nothing else touched), 360mm AIO cooler and well ventilated case. Pulling my hair out tbh and would really appreciate some tips if anyone else has seen this behaviour.

dvs

 

[dvs8]

Wow - thanks for the quick responses. Kinda mental to think that 1.5V is normal for a chip these days. CTR puts mine at a "silver" sample so I guess I'll leave PBO on and just not worry about the vcore figure.