Originally Posted by buddywh
What are you using to read volts? The correct voltage is only reported by HWInfo...even RyzenMaster reports it wrong on my Mortar.
Also, when you say you 'pushed 4.375G single core clocks' how did you do that? I have a 3600 on my B450 Mortar and I can't get any clocks over 3.775G unless I manually overclock all core to 4.15. 4.2 is feasible but voltage would have to be around 1.47 (but dropping to 1.41-1.42 under all core load).
I am using HWinfo64 (the only all around tool I trust) to get that reading. And as for the clocks, it's just PB2 doing it's thing. I've activated all standard features I saw in the BIOS (not sure the names, Cool and Quiet, Core Boost and the likes) but not touched the PBO, power, amp settings. So this should be "stock" according to AMD. All core boost is about 4 GHz, give or take 50 MHz depending on temperatures, and 1.2V, which seems totally fine. 90W package power on the dot.
Normal windows "idle" (which really isn't idle anymore), clocks are between 3.4 GHz at around 0.92V and 4.375 GHz at mentioned 1.494 / 1.5 V. HWinfo64 also logged some 0.2V like der8auer said, which corresponds to cores doing 2.88 GHz. I read that lower clocks aren't logged, since that would wake up the parked cores and get them to high power consumption again. So that 0.2V figure might be 500 MHz for all I know. This is definitely a different idle/boost behaviour than I was accustomed to from my Intel (i7-860 and i7-4770K / i5-4570S), but so far it doesn't seem broken. Maybe that 1.5V seems a tad high. When I get some new RAM today, I'll try and tinker some more with offset or fixed voltage. It's a shame that I have to log performance with that as well, since there can be performance regression while the voltage and clock speeds remain normal/good.
It definitely seems like something isn't quite correct with your settings. Have you done a BIOS reset, yet? I think the settings I have were pretty much out of the box like this. When I get the new RAM (hopefully later today) I'll try some screenshots or pictures of the OC menu. :-)