Note the thermodynamically-impossible peaks and dips in the temp readings; the real readings are the flat line. If one of those peaks were real, say a rise; the machine would halt instantly and likely burst into flame. If the dip was real, same again minus the flames and also the Laws of Thermodynamics would have been made a sad mockery.
Unfortunately the BIOS has user-control of fan speeds locked out; Fuck you HP and your Mommy-Knows-Best attitude!
