Which way should PC fans point?

When mounting case fans, air flows across the open side towards the side with the protective grille, like so: So the open side of the fan should face outside the case for intake fans on the front or the bottom, and it should face inside the case for fans on the rear or top.

Does it matter what side of radiator fans are on PC?

If the radiator is mounted on the side of the vehicle, the fan should pull air in. The reasoning is that pulling outside air inwards will mean that cooler air will flow through the fins on the radiator instead of pushing hot air from around the hot engine through the radiator.

Is negative air pressure bad for PC?

Negative air pressure is where you have more air being pushed out of your case than sucking it in. This causes air to be sucked in through gaps in your computer case, which can pull in dust, dirt, and hair. All of which are bad for your cooling situation.

Is CPU fan intake or exhaust?

CPU fans are designed for exhaust, as they blow the hot air away from the CPU, but some dual fan CPUs have two fans, one as intake and one as exhaust.

Should my PC have positive pressure?

A balanced configuration is the most efficient way to cool your pc although it should tend towards a slight positive pressure if you can help it.

Is negative airflow bad for PC?

What’s better 3 120mm fans or 2 140mm?

Generally speaking, with airflow equitable, the 140mm will be spinning slower and quieter. However, most 120mm will spin at max faster that a 140mm, so 3x 120mm can put out more cfm, if barely. Mostly it boils down to aesthetics.

Should a computer case fan be in the front or back?

Computer cases that have only one fan in the back should always be blowing the hot air out. Another common configuration is to have the fan in the back with a fan in the front portion of the case sucking in air. As can be seen in the picture, the computer case brings in cold air from the front of the case.

Should I put the fan on top of the CPU or below?

If you are using an alpha the blows the air up and away from the cpu, you’d want to exhaust that hot air out of the case. If you put the fan blowing in over the CPU, you’ll just blow the hot air back on the cpu.

Can I have more than one fan on my computer?

Remember when working with a computer with more than one case fan, at least one should be sucking air in, and one should be blowing air out. Having all fans blowing in with cool air would give the hot air no way to escape.

Should my computer fan be blowing or sucking air in?

Remember when working with a computer that has more than one case fan, at least one should be sucking air in, and one should be blowing air out. Having all fans blowing in with cool air would give the hot air a way to escape.