Yeah you are correct. If there was a blackout there might of been something called browning which I heard is killer for many computer components. Browning is when there is power but the voltage is not where it should be. So instead of 120Volts AC you might get 90Volts AC and what will happen is all your components will compensate and will need to pull more current and it'll end up blowing up a bunch of capacitors and other vital components.
Maybe with a surge protector it might save your equipment however a regular mid/high end PSU might not be able to kill the power in time to prevent the damage. I wonder if any miners on here ever ran into this "browning" type of electrical failure and ended up having most of their farm destroyed as a result of it.
I have this issue with my btc asics.
Not my gpus.
Here is why.
My gpus almost all run on 240 volt power and use Seasonic Focus Atx psu’s
My main location gives 238 volts and browns out to 190 volts often.
so a atx that can run on 120 volts up to 240 volts has zero issues as long as you are at 50%. say 500 of 1000 watts.
but my server psus for the btc asics at designed to do 205 to 250 volts.
they will run at 195 volts but they can die. Mostly just the psu dies.
USA 🇺🇸 NJ we had 98 97 98 and I downclocked all my asics and had zero issues.
We had major t-storms last night. Temps are now 72 f.