Re: Stupid "Optimized defaults" nonsense.
Count me in on the clueless I guess.
I bought a Ryzen 3700X on the day it was released along with an Gigabyte "X570 I AORUS PRO WIFI", which I think was the only Mini ITX board available at the time. Bought good Micron memory and enabled the XMP feature to run the memory at the right speed(which to me wasn't overclocking as that was specifically what the memory was sold to operate at). Looking at the manual again there is no indication XMP had any effect on the CPU, I always assumed it was a memory specific function. I'm not one to overclock, the only time I ever intentionally overclocked was a P200MMX to 233Mhz(or was it 225Mhz..).
I did fry that board after less than a year(December 2019), first time in 20+ years I had a motherboard fail on a personal system that I can recall anyway. After the system froze overnight(during encoding), I power cycled it, but it would not turn on again. I tried many times and eventually the magic smoke came out of a component on the lower right side of the board with tiny sparks. Gigabyte accepted the RMA without question(or explanation) and replaced the board(with same revision number, was hoping it would be a newer revision that fixed some known issue), been working fine since - no other components were damaged. The only thing that system does is encode video with handbrake(otherwise stays powered off). Though my backlog has been clear for some time it's probably encoded a few thousand hours worth of stuff.
Had a good quality power supply (PC Power & Cooling, reused from earlier Athlon build and still in use today, total of over 12 years of service and counting), and it was connected to a double conversion UPS, so power quality was as good as it could get.