I have an asus A7v-133 motherboard, and there is a tiny fan on the board located below the main processor and heatsink that i'm guessing cools some type of processing chip. It says "ARX Cpu Cooler" on it. This fan is slowly dying and making alot of noise. My questions are 1) What is it going to hurt if this fan stops working 2)How can I replace it and what would I replace it with? Thanks in advance.