Look at all the Lian Li cases with an air duct. The rear fan is an intake fan that blows on the cpu. You could turn the fan around but obviously they did it for a reason. Scroll down and it shows how it dissipates air. I doubt the G70 has different airflow from these two cases. How sick is that anniversary aluminum/copper case Lian Li Industrial Co., Ltd. Lian Li Industrial Co., Ltd.