I use to work in situations where we had to account for failures. We had lab equipment that would just run all that time, and with terrible wiring and we were h

I use to work in situations where we had to account for failures. We had lab equipment that would just run all that time, and with terrible wiring and we were horrible to it too. We left covers off, piled stuff on top of it and just Frankenstein the hell out of all of it. I even managed to flash a new OS/App at the same time of a power failure but it still lived.... Failures were more prominent in memory...but they did happen. We also sent equipment through environmental testing that would force failures. I don't recall of hearing of any CPU failures. Although most of our equipment was DSP & FPGA based but there were some tiny 'lil CPU's there.