My rx7600 suddenly started to be hot

i had played atomic heart, and i watched my fps, and i saw that temperature of hotspot of gpu is 90 degreese and temperature of gpu is like 70-75. I make my settings of graphics to minimum, but the temperature was ther same. I tried to change settings on gpu and do undervolt, but nothing changed. I tried to minimaze frequency of my gpu and it isnt help too. And in other games like cyberpunk is the same problem. But a few weeks before all was normal, i had played with the same settings and the max temperature of hotspot was 80. Only that i remember it was electricity cut a few days before. But i was wathcing youtube at this time. Can somebody help me?