5 computers on 24/7, 2 of them since 2008. those 2008 machines have both had 2 psu replacements. laptop had a wall wart replacement, its but up for about 10 years. battery died, not replaced. 2 i7s just installed christmas of 2022. no drive or other components have gone bad except for 1 network adapter built in got flakey and i put in an expansion card to replace that one. also on 24/7 for the past 25 years a theater 5.1 channel amplifier and speakers. oh, i had 2 17 inch very very old acer monitors that went bad, caps replaced, both went bad again, but those were whew, er, before the 2008 computers.