65c is very good while playing. Even at 75c its ok. And 45c is ok for ambient temp. I think you room temp is high and you do not have enough air flow for case. Thats why your are getting 45c. But no need to worry.
Sometimes i also get 45c, but its for my room temp. Generally its 35c/38c. You can use intake and exhaust fan for case if you dont have any.
So when using msi afterburner, should i increase my fan speed. Right now it's on auto and at 47 speed. Where I live it's heading into winter and am downstairs, so it's currently down to 40's at night. So sure your right about case air flow then. Plenty chilly outside. Thanks for the quick feedback.