Im gonna spit some stuff out here. I have your BIOS images showing on my second screen. Im gonna go through thenm in order as they appear in your photo album
1st few screens
-I see your "VBAT" shows as under 3.2 volts, this is your little 2062 batteyr on your motherboard (or 2016). Grab a new one. This will eventually lead to you playing the game of random shutdowns, random instability, and random BIOS resets.
1st bios screen
-HPC mode - ENABLE
3rd bios screen
-NB core - seems gigabyte has either forgotten about the memory controller (usually cpu-nb) or this is it, and gigabyte forgot the actual northbridge chipset. Given that it mentions VID, I am going to assume this is actually the IMC voltage. This is safe to 1.35-1.4 on good cooling, so if you are experiencing memory errors during checking, or under hard processor use with ram use, bump this to 1.3 to test.
-CPU Vcore - increase this to 1.4
-vcore loadline calibration - reduce this to the middle setting, generlaly "high". extreme creates a LOT of votlage spiking, and can cause a LOT of excess heat.
Ultimately, for best processsor lifespan, and to get the vcore where it NEEDS it, rather than pummeling it with voltage, it is better to have a higher idle voltage that DROPS under load. I only use as much LLC as needed to keep the distance from idle to laod under 0.25 volts different, thereabouts.
Going from 1.3 idling to 1.5, for example, means your processor that might only need 1.4, gets very stable with load, but excessive voltage, and probably will lock up under very light workloads, or even while booting to desktop.
TRIAL AND ERROR is a long job, but very worth while. You might pull your hair out here and there, but it will be worth it in the end.
HOMEWORK for you: Look up your power supply, and see what the general thought is. It is up to you whether its owrth grabbing a new power supply to fix those voltages. Heck, you said you were gonna try the multimeter, so you might still be good to go.
I am getting longwinded, just spit balling a lto here, and hoping something arrises from the fog lol..