Hello guys I have recently upgraded my gpu to r7 265. This card is perfect tight fit in my pc with only about 3cm left between the card and where it touches. A guy suggested me I can use a fan cooling system by adding another fan. I am completely new to this and don't know anything about the fan coolers. My psu is xfx core edition 550W wuth a 120 mm fan. And I have a micro atx case. Please help me find a suitable fan for max 50$.