Weirdly, just had the same problem in March of 2023 @Martin
Unclear to me what is the cause - hardware or software.
I am running the HWinfo 7.40-5000.
Ryzen 5 5800x was limited to 1.3vcore (LLC values were not touched), the CPU is running PBO. It's cooled by an MSI AIO K240 (Asetek made, with a...
I just tried reverting to 6.20. I get the voltage regulator temps, but I do not get VCCSA or VCCIO. I will try installing 6.26 and see what I get (on this Asus z490 TUF wifi)
EDIT: Just tried and on 6.20 there was no EC and no VCCIO or VCCSA. On 6.26 I get voltage regulator, I also get VCCIO...
But now VCCSA voltage is missing from the latest beta 4195 on Asus z490 TUF WiFi (and it was missing on the previous beta).
What about the missing EC sensors?