Gentlemen, unfortunately I dont speak Portuguese but I will still share this trick with you;
Connect a classic diode 2N3904 to the hard disk thermal sensor cable and place on/nearby the SSD (preferably nearby the SATA connector) - and the thermal system of the firmware is happy and working normally.
This is also the thermal sensor that Apple uses on the early models!
Good luck.
https://www.haught.org/2015/11/16/imac-2010-hd-thermal-sensor/