When I joined a home mining group, I thought it was peculiar that all of them were so concerned about fire. Most of them were under-clocking their systema too.

After a while, I realized it was mostly hype and BS; a way for these guys to feel their manhood or something. People were recommending cables that didn't even exist, along with some extreme measures, (including potentially dangerous ones); all in the name of preventing fire.

I thought my S9 was going to be some kind of home-built nightmare when it arrived. Instead, the power supply was UL certified, and even with custom fans, it drew less wattage than my space heater (which I leave on for days on end). Good luck trying to make a fire happen in that scenario.

I'm not saying you should store flash paper and black powder on it, but if it's UL certified, it's as dangerous as every "off the shelf" electrical device in your home.