HWMonitor is a hardware monitoring program that reads PC systems main health sensors : voltages, temperatures, powers, currents, fans speed, utilizations, clock speeds ...
https://www.cpuid.com/softwares/hwmonitor.html
I realize there's HWiNFO 32+64 Portable, but HWMonitor is much lighter in terms of system resources and just simpler in use.
https://portableapps.com/node/14477
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