Oh and all the mods and overclocking and improvising, once the power management controller on my mobo died, i managed to workaround by getting a regular switch replacing the power button and soldering to the power on signal of the PSU. I too once got no power and thought thats it, i gave it a try with no hope to look for blown electrolytes on the mobo and found an apparently cracked SMD resistor, soldered a new on top of it and surprise surprise all worked as new.
I think i still have somewhere a heavilly modded Nvidia card that had huge heatsinks added and a 120 mm fan
We even had a project with a couple of buddies in high school to build a cryo cooling solution (remember those companies that attempted to do it professionally for totally ridiculous prices?), with full electronics to deal with the system cooling down the fluid first and then powering up and handling fallback to cover for pump, compressor outage etc... The entire thing alone was projected to be placed into an old tower from an oscilloscope.
We did not finish the compressor circuit due to lack of funding, but i was running the fluid cooling for quite some time
Odd thing i remember is, that the 100 MHz FSB celeron apparently after some time got used to run overclocked at 112 MHz, and i always got HW related bluescreens when settings were reset, even when running a fresh install.
I wish i had so much time and the will and dedication as back then