Well, to start with you'd be doing yourself a favor to stop using HWmonitor and start using HWinfo. HWmonitor, Open Hardware monitor, Windows task and resource monitors, these are all notoriously inaccurate and/or sketchy programs that either are known to have issues with accurate reporting of sensor data or simply have poor/non-existent support for some chipsets and specific sensor types.
For CPU thermal monitoring only, I highly recommend using CoreTemp. I've found it to be the most highly accurate of all the CPU specific thermal monitoring applications and if you are using an AMD chipset/CPU it does offer the ability to change from straight thermal sensor celcius readings to the appropriate "distance to Tjmax" specification recommended by AMD based on their own table calculations. Simply open CoreTemp, click on Options> Settings > Advanced and check the box next to "Display the distance to TjMax in temperature fields", and save.
For all other system wide sensor and reporting data, including CPU core usage, core temperatures, package temperatures, power supply system voltages, GPU card sensor data and temperatures, storage drive sensor data and anything else that has a sensor or reports data, HWinfo has MUCH broader and more accurate chipset and component support than any of the other utilities out there.
I have very rarely found a chipset or sensor that was unsupported by HWinfo or encountered the sorts of completely off kilter reporting issues I've seen in almost every other reporting utility. Both are free and come highly recommended by just about every experienced tech or enthusiast that's been doing this for a while.
In order to help you, it's often necessary to SEE what's going on, in the event one of us can pick something out that seems out of place, or other indicators that just can't be communicated via a text only post. In these cases, posting an image of the HWinfo sensors or something else can be extremely helpful. Here's how:
*How to post images in Tom's hardware forums
Run HWinfo and look at system voltages and other sensor readings.
Monitoring temperatures, core speeds, voltages, clock ratios and other reported sensor data can often help to pick out an issue right off the bat. HWinfo is a good way to get that data and in my experience tends to be more accurate than some of the other utilities available. CPU-Z, GPU-Z and Core Temp all have their uses but HWinfo tends to have it all laid out in a more convenient fashion so you can usually see what one sensor is reporting while looking at another instead of having to flip through various tabs that have specific groupings.
After installation, run the utility and when asked, choose "sensors only". The other window options have some use but in most cases everything you need will be located in the sensors window. If you're taking screenshots to post for troubleshooting, it will most likely require taking three screenshots and scrolling down the sensors window between screenshots in order to capture them all.
*Download HWinfo
*Download CoreTemp