One of the most important considerations in desktop computers setup is the installation of the cooling system. By paying attention to the point, you can extend the life of your important parts in the case with a smooth cooling system installed at small costs. I will refer to the main issues that need to be taken care of.
Success in cooling systems established by straight logic is not always possible; the number of fans inside the case is not always directly proportional to the success of the cooling systems. It is necessary to place the fans with paying attention to the air pressure to create and the temperature of the air to be affected. For example, putting on a fan that blows in, on top of a fan that blows out; as the hot air thrown by the blowing fan will go up, resulting in possibly blowing hot air inside the case. It is therefore generally not preferable that the fans blowing in and out, or the power supplies (blowing hot air out of the case) and the fans blowing in are very close together.
In addition to the temperature, another thing to be aware of is the air pressure that will form inside the case. There are three types of air pressure that can occur.
Positive Air Pressure
Positive air pressure occurs when air entering a space is more than air extracted. This air pressure type will prevent dust build-up inside the case (by inserting fan filters on the air blowing fans); but the outward stroke of the hot air inside will occur with the gaps found.
Negative Air Pressure
Negative air pressure occurs when fans blowing air out on the case are more than fans blowing in. In this scenario, the hot air inside the case will be thrown out the most and the minimum temperate will be achieved inside the case. However, the vacuum effect inside the case will cause the dust to accumulate by entering through the spaces that it finds instead of entering through the filtered fans blowing air in.
Neutral Air Pressure
Neutral air pressure indicates that the air is the same amount of air blown out and in. It is the ideal setup; prevents dust from accumulating inside the case and helps to reduce the temperature inside by blowing out the hot air that the pieces have been poured out.
In addition, the conflict of fans creates turbulence inside the case, creating airless fields. This can result in some parts getting no air and overheating.
The general principle is to create a neutral air pressure, cold air circulating the whole case and the hot air blowing out.