In my case, "Silverstone GD05B PC case" I have so that connected the three case fans. They run smoothly, eerily quiet, yet effective (without chassis fan about 45 degrees, according to BIOS CPU, with 5V-controlled fans about 36 degrees with the same use). Top, the external hard drive to the TV is more likely to listen than the PC next to it. Übringes: An AMD A4 5300 with boxed cooler is mE a prima base for the living room ... :)