I know there are so many threads about this but I need quick answers! 1. I have two big 120 mm fans on the rear of my computer blowing air out of my computer (does that mean those are INTAKE or EXHAUST?), outside of the CPU and GPU fans that's all the fans I have 2. I am adding THREE fans, one on top, one on the bottom, and an expansion slot video card cooling fan. Since the two rear fans are blowing OUT, how should I set the top and bottom fans? 3. My video card is at the top of the expansion slots, how close to my GPU should I install the video card cooling fan? Thanks!