Yeah well at a guess (since your sensors are not labelled as nicely as mine ) TMPIN0 is going to be your CPU sensor and obviously this is getting past the 43°C threshold but your CPU fan is not spinning up, i believe the fan on that cooler should reach 2000rpm at max speed and yours is sitting around 1400 although that should be fast enough really.
Oh and see the end of my last post for an edit on backplate and TIM info, in case you missed it