I was thinking about buying a refurbished H80 for my 3570k, I have very little money atm but I really want to overclock my 3570k i5 to try and squeeze 60fps in Planetside 2, but my current fan isn't up to the task. I saw a refurbished one for £40, but wondered if anyone else had done the same? Would it be a risk to my components? Also not really that in touch with water cooling.