Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
I am getting the similar temperature readings on my x370 pro and 1700x with noctua D15. When I added a tsensor, it showed different readings. Idle at 30c and when playing overwatch the t sensor went to 58c. I placed the sensor close to the heatsink. Hopefully someone comes up with a video...