If you cant fix the temperature and have problem with thermal and your fan isn't strong enough to get airflow from intake.
Old School Method.
Open Side Panel and Aim your Electric Fan on it...Sample pic
But the method I used back then was portable ac
it blow really cold air.
there an
portable ac cooler. that actually works. You put cold water in there and few ice. Dont worry water will not go to your computer. there a filter that block moisture, so only cold air come out from it. It will drop your computer temperature Degree. I used this method couple years ago when I had GTS 450 fan stop working
I used it as the my gpu cooling and it did cool my entire pc.. Only downside that...