I would try a better power supply you volts are way under 12 volts they should be at least 12 volts on full load , the CPU should be 1.25, the HECI are .3 under 12 volts , the low volts may be effecting the sensors. When you look at a PSU you want something at least 80 plus certified.
Desktop Utilities functioning is itself a diagnostic. If your Management Engine interface is not correctly installed your temps won't be regulated. Keep an eye on VCCP when you apply a load.