Hi everyone,   After trawling the internet for advice I have recently changed the 120mm fan in my N54L. NB: I will soon be changing the 40mm fan in the power supply as well and will add that when I do. It seems there are a few nuances with fan selection & installation so I wanted to create a complete guide for anyone wanting to do the same. Tools Required Philips Screwdriver T10 Torx Tool (Inside server door if you don't have one) Stanley/Utility Knife Very small pin/flat head screwdriver T