Never had anything die before permanently, I had an old DFI Pentium II/III era motherboard that had crappy capacitors, which I swiftly replaced and then the motherboard was working like new, it lasted a few years after buying it used from a corner hardware store. The mobo works but has issues detecting HDD's.
Though what was precious for me n' my dad that died was an (yes that's what they liked to be called) ASUSTek P4P800-E Deluxe that was running a P4 3.0GHz Northwood which is now decorating my wall. My dad got the computer parts back in 2004 and the computer lasted good 7 years (longest time he used same hardware).
Dad used to play Command & Conquer games ALL DAY LONG to the point where I was thinking why is he playing such old games repetitively on the same map? He still does it now on his FX 8350 rig, except that I went and upgraded CnC Generals for him with the Shockwave mod, I take care of his software needs, most of the time.
It couldn't boot into Windows anymore and had its capacitors blown out. Nothing I couldn't fix, with a solder and an oven, but I think I'm laying it to rest because the hardware has become so obsolete that it can't run a modern browser properly, AN INTERNET BROWSER, WHAT!? (I know why it is like that though, I just can't accept it
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The only things that survived were the case (obviously) and Creative Inspire 7.1 speakers. And those speakers are still running 12 years on, holy s**t. The amp is always warm, like on my own Inspire 2.1.
Still in it's final days it was still kicking, the processor running a hyper-threaded core it could run Crysis at decent framerates. And after seeing what pre-2006/7 hardware could do, it was the first time I realized that the PC platform holds a special place in my memories.
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The only recent e-death was 2 HDD's running on a cheap faulty PSU that was lying around that killed two half TB HDD's. That weren't mine, so I had to replace them out of my pocket. Luckily it didn't kill the Pentium Dual-Core E8400 / Gigabyte EP45T-DS3R system that I was building for a family friend.
I re-purposed the zombie PSU to run a water pump to drain water in my garden. It's doing its time for killing the innocents, lmao.