Chosen Solution

I don’t know why when I turn on my console without the playing game but the temperature of MeMoRy is so high 80*C , while cpu is 50 and gpu is 45. Maybe the memory has problem

The Xbox 360 is known for getting very hot, 80 is very hot for all electronics, really the best you could probably do, is to open up the Xbox 360 and clean it out of dust and whatever else is in there. Try using this guide to clean the fan when you’ve reached it: Xbox 360 S Fan Replacement