1. HWMonitor does not show any bad situations except for the power supply voltages. And they are strange. What happens is we see such and 'wonder' if there are other glitches in that version of HWMonitor and what else it reports. Are the other numbers given for temps etc accurate? Likely so but that doubt remains. Is the latest HWMonitor in use?
2. OP raises question about having to change voltages to cpu etc, but if P95 Blend is not failing at 20 mins at current 4.4Ghz and temps remain the same or there are not any great rises in temps over a 2 hour run of P95 Blend then could pretty much say the setup is okay as configured.
3. This is what "dtrunk" is referring to about additional screen captures as illustrated below. Makes answering about overclocking an AMD cpu easier.
CPU Tab in CPUz from CPUID com
Memory Tab in CPUz from CPUID com
SPD Tab in CPUz from CPUID com
And this is screen capture of HWMonitor (free version) from CPUID com
HWMonitor has been scrolled enough and large enough to show Min/Max of Voltages and includes the CPU CORE TEMPS fully visible.
This capture is made of HWMonitor after it has been open on the desktop logging Min/Max temps and voltages while Prime 95 was running Blend Mode test on all cores for at least 20 mins and then the capture of HWMonitor was made and it shows the Min/Max temps and voltages before P95 Blend was started and while running P95 Blend mode and gives much greater insight into how the system is performing without guessing.
In order to attach screenshots of INDIVIDUAL images as suggested, first crop and capture the images with Snipping Tool found in Windows Accessories or equivalent. Then click on Go Advanced, a button at the bottom of every new post window. Then click on the little paperclip tool at the top of the Advanced post window when it opens. Clicking on the paperclip tool brings up the file browser/upload tool and the rest is fairly obvious.