We talked earlier about cooling fans on our CPU, but just as our CPUs get very hot, all of these different chips on the motherboard also get hot. You’ll find on almost every computer there are cooling fans. My server has 3 different cooling fans on it. You’ll find on your desktop that you’re using at home may only have one cooling fan. These days there are even specialized systems that have no cooling fans! But on most computers, and certainly in servers and desktop computers, you’ll find there are quite a few fans. Sometimes there are big fans, sometimes there are small fans, and they work by pulling the cool air into the system and blowing the warmer air out of the system.