case fan placement in coolermaster elite 335u with seidon 120xl watercooling

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aaron_lig

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Jan 30, 2014
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Hi
I currently have a cooler master elite 335u case with a seidon 120xl water cooler.
With the water cooling installed I have 2 spots on the side for fans, 1 at the front of the case, and 1at the bottom.
I can't place a fan at the bottom of the case due to not having enough room because of my psu, so that leaves me with the 2 side spots and 1 front for fans.
When I have the 2 fans installed as a push/pull configuration for my watercooling I won't be able to use the top side spot for fan due to limited room.
Should I just run a push configuration on my watercooling so I can use 2 side case fans? And 1 on front of case?
Or should I run a push pull configuration for my watercooling and only run 1 side bottom case fan and 1 front case fan?
And what spots in my case should I make my exhaust fan and my intake fan?

Thanks
 
Solution
markwp
Yes. If you use one intake on the side with an exhaust right below it, your air movement will be limited as the side fans are working against each other. Also, the push/pull setup is actually working as an "intake" - the air is moving into the case. With that setup you have "360mm" of fans as intake (one front, two rad) and "120mm" of fan as exhaust (side). That keeps the case under positive pressure and helps move the air to the exhaust fan.

If you went with a single fan on the rad, you would still have positive pressure (240 in, 120 out). By using the three fans, you should get better movement and additional warm air will be "pushed" by the positive pressure to exit via the bottom fan area and the unused side fan area.

Mark
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markwp

markwp

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Jan 22, 2013
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You want to use pull on the radiator. Think of your car - pull cooler air in over the radiator. Put a good high volume, low rpm fan in front as an intake and put the same thing as exhaust on the side panel. You want to keep positive pressure in the case (more intake than exhaust), and by putting your exhaust over the gpu area, you should get the most effective airflow.

Mark
 
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aaron_lig

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Jan 30, 2014
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10,510

Hi Mark,
So you are telling me not to go with the push pull configuration on my seidon 120xl watercooling and just go for the pull configuration?
If I just go with one fan for my watercooling (pull configuration) I would be able to use both my side fans (compared to push pull where I wont have enough space to use my top side case fan but only the bottom side case fan), so should I use top side case fan as exhaust and bottom side case fan as intake? as well as the front case fan as an intake?

Thanks

 
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markwp

markwp

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Jan 22, 2013
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I think we are using the terms push and pull differently. To me, push is pushing air out (exhaust) while pull is pulling air in (intake). I realize a dual fan on an AIO is "push-pull" (push from the top, pull from the bottom), but to my way of thinking this just confuses the situation. Use both fans on the rad - just make sure they are moving the air from the outside through the rad towards the inside.

Sorry for the confusion.

Mark
 
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aaron_lig

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Jan 30, 2014
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10,510

From what I have been told push is having the fan on the left of the radiator, and pull is having the fan on the right of the radiator; and when fans are on either side of the radiator = push/pull with push on the left and pull on the right.

So, having push/pull configuration would mean ill have one side exhaust fan, and 1 intake fan
and push configuration would mean ill have 2 side fans, top side fan exhaust, bottom side fan intake, and front case fan being an intake.

Now just clarifying with you, push pull with one side fan (exhaust) and 1 front fan (intake),
would be more efficient than having
push configuration with 2 side fans (top being exhaust and bottom being intake) and 1 front fan (intake)?

Thanks
 
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markwp

markwp

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Jan 22, 2013
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14,960
Yes. If you use one intake on the side with an exhaust right below it, your air movement will be limited as the side fans are working against each other. Also, the push/pull setup is actually working as an "intake" - the air is moving into the case. With that setup you have "360mm" of fans as intake (one front, two rad) and "120mm" of fan as exhaust (side). That keeps the case under positive pressure and helps move the air to the exhaust fan.

If you went with a single fan on the rad, you would still have positive pressure (240 in, 120 out). By using the three fans, you should get better movement and additional warm air will be "pushed" by the positive pressure to exit via the bottom fan area and the unused side fan area.

Mark
 
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Solution
A

aaron_lig

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Jan 30, 2014
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10,510

Thanks for your help.
 
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