I've got a Inspiron 620 that I installed a Zotac 660TI that has been sent back RMA due to bad fan bearings. In the mean time, I'm thinking about possibly modifying the case for more airflow. Already replaced the junk rear stock fan with an Antec 92mm but the only other place to put one without cutting up the case is the side bezel (which I could either drill/bolt or epoxy a 120mm to). Unfortunately, without any front air flow, is this a good idea and should the fan be exhaust or intake?