Excuse my language errors.
The problem is not the temperature, this appears normal, the problem is that since the hardware was cleaned the temperature of the graphics card is constantly changing, before this was stable, changing only a few degrees when changing ambient temperature or when I selected a different profile in Asus GPU Tweak II, for example changing "Gaming Mode" to "Silent Mode", always keeping the temperature stable and formed an orange line appeared flat on the chart.
Now, after cleaning hardware, the temperature constantly changes about every three minutes, as you can see in the graph of lines and images of GPU Tweak II, but at times throughout the day, without my intervention , the temperature stabilizes and remains constant for a few hours, as before, then returns to vary continuously about 9 or 10 degrees.
Something changed or something was damaged when the hardware was cleaned and what I want to achieve is that the temperature of the graphics card again be stable and continues as before.
That is the problem to be solved and for that I need the help of the members of this forum.
Thanks for your answers.