Errors in GPU temperatures.

Hello, I have problems with the temperature of the GPU, it appears from time to time, but most of the time it does not appear in the program and the operation is wrong. I only have a fan connected, I'm testing it. I have tested the 4 versions and the same problem. What could be happening?. Thank you so much.

News. Tested on another PC with a Xeon and same O.S. It works perfect. Great since that's where I want to install it. The only thing I see is that the 'Temperature_Reader.exe' gives the data without decimals on CPU temperature, none. Maybe that's the problem on this other PC where I started testing it? It has an AMD Ryzen.