Fan setup?

Nathlm

New member
IS THIS A GOOD FAN SETUP?

Front = 1 x Intake

Side = 1 x Intake

Top = 2 x Intake

Back = 2 x Outtake

What I want to know is which is better Intake or outtake (for top)?
 

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Try to go for positive air pressure in the case or at least balanced, which means more air going in than out. This stops dust collecting inside the case to a certain extent. For intakes, try to buy filters for the fans so less dust gets in. You should also try to follow thermal dynamics, where heat rises. But there seem to be more exhaust than intake for this case, I would go with the second set up, but turn the rear fan to intake. And put filters at all intakes.
 
Try to go for positive air pressure in the case or at least balanced, which means more air going in than out. This stops dust collecting inside the case to a certain extent. For intakes, try to buy filters for the fans so less dust gets in. You should also try to follow thermal dynamics, where heat rises. But there seem to be more exhaust than intake for this case, I would go with the second set up, but turn the rear fan to intake. And put filters at all intakes.

No can do I'm afraid the back ones are for my coolit eco 2 and they need to be that way around (get better temps that way)
 
isn't sucking cool air from the outside better?

I run an Antec Kuhler 620, which is similar to the Eco 2 from what I can see. It's recommended on mine to pull cool air in from the back, which I then vent out of the top and front.

I did initially install it taking air from inside the case and pushing it out, but this wasn't so effective. Additionally now I also have some old air-con pipework giving me a cold air feed directly to the rad - works quite well.

Cheers,

Scoob.
 
The second picture (Airflow2.jpg) is better. Cool air would be taken in from the front of the case (and sometimes the sidepanel) and vented out from the back and the top of the case. The reason why you should have the top venting is because heat rises, as the heat rises if your top fans are pushing in air what you are doing is pushing the hot air back into the case not allowing it to escape.

If they are venting out air, they would pull the hot air out and the cool air from the front and side panel will go over the components. The reason for the rear case fan is to exhaust the hot air being vented by the cpu hsf.

This is the most simple form of air flow in a case. People do use other methods such as positive air flow (where all possible fans are pushing air into the case with non venting out and negative airflow (where all fans are pulling air from inside the case and non pushing in). However I believe the method shown in the second picture is the best.

Also take into account that the air pushed into the case is from the room its in, so if you have a well ventilated room your pc will have lower temps, whereas if your room is like a box with low ventilation then your room will heat up due to your pc's temp and the warm air will keep on rising.
 
The second picture (Airflow2.jpg) is better. Cool air would be taken in from the front of the case (and sometimes the sidepanel) and vented out from the back and the top of the case. The reason why you should have the top venting is because heat rises, as the heat rises if your top fans are pushing in air what you are doing is pushing the hot air back into the case not allowing it to escape.

If they are venting out air, they would pull the hot air out and the cool air from the front and side panel will go over the components. The reason for the rear case fan is to exhaust the hot air being vented by the cpu hsf.

This is the most simple form of air flow in a case. People do use other methods such as positive air flow (where all possible fans are pushing air into the case with non venting out and negative airflow (where all fans are pulling air from inside the case and non pushing in). However I believe the method shown in the second picture is the best.

Also take into account that the air pushed into the case is from the room its in, so if you have a well ventilated room your pc will have lower temps, whereas if your room is like a box with low ventilation then your room will heat up due to your pc's temp and the warm air will keep on rising.

With mine when the cold air is being drawn from the back the cpu is lower temps up until around 3 hours where it starts rising dramatically

Also I now have the airflow like diagram 1 and it is much cooler than before (on everything - RAM, CPU, inside the Case - EVEN THE HARD DRIVES)
 
With mine when the cold air is being drawn from the back the cpu is lower temps up until around 3 hours where it starts rising dramatically

Also I now have the airflow like diagram 1 and it is much cooler than before (on everything - RAM, CPU, inside the Case - EVEN THE HARD DRIVES)

Also I'm thinking of putting a 120mm fan where the optical drives are so even more airflow
 
The whole convection cooling/stack effect thing is bit of a misnomer. Yes, the warmer air rises but it's an order of magnitude smaller than the power these fans put out. Also, the stack effect works best with shrouded, wind tunnel-like objects. The inside of a PC case has plenty of things that act as baffles against the stack effect. The better logic is to have your fans move the air all in one direction to cause as little turbulence as possible and maximise flow.

Of course that's just my opinion.
 
It's just a mystery how it's cooler with the fans setup like in diagram 1!

Loads of variables at play to determine why one is better than the other. You just have to find what the best set-up is for you, if diagram 1 works better for you then that's what you should use.
 
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