I am not a tech person, but I cleaned out my secondhand PC today, and it took hours with the sheer amount of dust accumulation. The fans were nearly overloaded with it!!
Does a clean PC run better / faster than one filled with dust? Or is it more a matter of keeping the fans running easily? Or something else…? Idk, maybe I imagined it, but it seemed to boot much faster after cleaning. Could be wishful thinking!
An old Pentium III an extended family member had burned itself out of disrepair. The computer was used for about a decade before being forgotten, but plugged in for some other 5 years. Then they had the bright idea of using the old computer without cleaning it. It all went well for a while it boot up and otherwise was it old win7 self. Except, a couple of days later they let it on overnight. The house owner was awaken alarmed by the fumes of burning plastic and a faint trail of smoke coming from the case.
The over a decade buildup of dust had been trapping heat so bad that some old shoddy HDD power cable melted partially exposing the conducting wires. Then it short circuited and arced through the dust setting some lint on fire.
The flame was minuscule and it was controlled fast. But I would say that, it is indeed wise to clean your computers, at least once in a while.
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Pentium III, win7?! Do those motherboards even accept enough memory for what post vista OS slurps?
Listen, that computer was manhandled and abused for almost two decades. You’d be shocked by the weird things they got it to do. Part of the hazard was all the Chinese “upgrades” it got over time.