Gigabyte Motherboard on there BIOS have a setting to set PBO boost as in over 4600Mhz and it crashes. This to me is confusing. I do not think motherboards have this kind of feature. Of course I could be wrong but I never seen this on a motherboard.
It sounds to me you have unstable motherboard with settings you are trying to achieve on the BIOS.
EG: Your PPT/TDC/EDC setting are not capable of running on your motherboard BIOS without crashing. Doubt it is the CPU. You can tell me to go pound sand and I will be fine with that also.Start over get a good base on what your CPU and Motherboard can do.
I suggest set everything to default and use the BIOS built in performance modes and check what the limits are in Ryzen Master. Then test your settings with Ryzen Master turned off before jumping to EDC tweak/bug. So establish a base for PPT/TDC/EDC then go from there.
I also suggest set your DDR4 Ram to a setting such as 2133Mhz for testing the enhanced/performance modes on the motherboard and also EDC tweak/bug.
EG: Screenshot I circled the differences on Ryzen Master between what the motherboard sets from default to enhanced/performance mode 4 for PPT/TDC/EDC
Default setting Blue Marks vs Enhanced mode 4 Red Marks -Setting in BIOS but shown in Ryzen Master what the values actually are.
Setting=Default - Auto Overclocking
Boost override CPU
Default 0Mhz - 300Mhz
Default 142w - 1000W
Default 95A - 114A
Default 140A - 180A
Default -0X - 10X