Cooling being a key factor as mentioned earlier in the post (cleaning fans) airflow is also a concern. Try elevating the rear of your laptop while playing to allow more air to get into the intakes. YOu can also try a good cooling pad to force more air into your intakes, youll need to clean a little more with the cooling pad but it can make a difference. I run a lappy with dual 6990’s and airflow is essential!!