Phil2008, CPU-Z reports 1.068 volt. This is full load with a slight under-volt on a stock i7 8700 (non K).
I'm seeing 76c on the VRM temps. Also i'm seeing max 57c on core temps. So for me core temp is not an issue VRM temp is.
So compared to you i'm (minus) -31 degrees on my core temp, yet my VRM temp is +6 compared to yours!
I have no idea why my VRM temps are so high compared to yours.