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Top fans set up as intake or exhaust? Please help.

AlexC1202
By AlexC1202
in Cooling
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Posted

Hey guys,

 

So i'm kinda new into the business so please forgive me if i'm asking stupid questions.

I have a Phanteks P400S case, with a H110i radiator mounted on the front of the case set up as intake, and another 120mm fan in the back as exhaust.

I bought 2 x 140mm Corsair fans that i want to mount on the top for better cooling. I cannot put the H110i at the top because of clearance issues.

So how should i configure the 2 extra fans mounted on top? Should i set them up as exhaust and create a negative pressure, or set them up as intake?

Which of the 2 solutions will provide the best cooling in your educated opinion?

 

Thanks and best regards,

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I would mount the H110i fans as exhaust, and the back and top fans as intakes.

"It pays to keep an open mind, but not so open your brain falls out." - Carl Sagan.

"I can explain it to you, but I can't understand it for you" - Edward I. Koch

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1 minute ago, Godlygamer23 said:

I would mount the H110i fans as exhaust, and the back and top fans as intakes.

I never thought about that. Thanks!

One question though, wouldn't that mean that the CPU temperatures will be worse because i am running hot air through the radiator?

Also, is it ok if the radiator fans will be in a pull configuration? i cannot mount them on a push configuration (so the fans inside the case pushing air out through the radiator). 

Would they do the trick in pull config?

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Just now, it_dont_work said:

2x 140's in the front
 as intake

AIO at top as exhaust

and 120 on the rear as exhaust at about 60%

 

but I guess I'm weird like that

The OP stated the AIO doesn't fit at the top.

"It pays to keep an open mind, but not so open your brain falls out." - Carl Sagan.

"I can explain it to you, but I can't understand it for you" - Edward I. Koch

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1 minute ago, it_dont_work said:

2x 140's in the front
 as intake

AIO at top as exhaust

and 120 on the rear as exhaust at about 60%

 

but I guess I'm weird like that

Yep, AIO doesn't have clearance at the top in the case that i have....unfortunately...

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6 minutes ago, Godlygamer23 said:

I would mount the H110i fans as exhaust, and the back and top fans as intakes.

The rear doesn't have filter though.

 

1 minute ago, AlexC1202 said:

Yep, AIO doesn't have clearance at the top in the case that i have....unfortunately...

Which did you get first, AIO or the case?

Coz really, you should've consider how the airflow is going to be before pulling the trigger.

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Just now, Ichi said:

The rear doesn't have filter though.

Okay, but I would find that setup more ideal, filter or not. 

"It pays to keep an open mind, but not so open your brain falls out." - Carl Sagan.

"I can explain it to you, but I can't understand it for you" - Edward I. Koch

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3 minutes ago, Godlygamer23 said:

The OP stated the AIO doesn't fit at the top.

 

2 minutes ago, AlexC1202 said:

Yep, AIO doesn't have clearance at the top in the case that i have....unfortunately...

My bad. in that case

 

8 minutes ago, Godlygamer23 said:

I would mount the H110i fans as exhaust, and the back and top fans as intakes.

^ I'd probably go with that.

Silent build - You know your pc is too loud when the deaf complain. Windows 98 gaming build, smells like beige

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Just now, Godlygamer23 said:

Okay, but I would find that setup more ideal, filter or not. 

There really isn't much choice really.

The lack of top rad mount is quite disappointing in this case.

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Just now, Ichi said:

There really isn't much choice really.

The lack of top rad mount is quite disappointing in this case.

Yes, I agree. 

"It pays to keep an open mind, but not so open your brain falls out." - Carl Sagan.

"I can explain it to you, but I can't understand it for you" - Edward I. Koch

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Setting them as exhaust would be better for cooling.

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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16 minutes ago, Ichi said:

 

Which did you get first, AIO or the case?

Coz really, you should've consider how the airflow is going to be before pulling the trigger.

Both at the same time. I figured it's not such a big deal if the AIO sits in the front. I couldn't find any other aesthetically pleasing case in that budget.

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17 minutes ago, Godlygamer23 said:

Okay, but I would find that setup more ideal, filter or not. 

And if i do the top 2x140mm as intake, and the H110i and the back fan as exhaust, wouldn't that be kinda the same thing? Then the lack of filter of the back fan wouldn't be a problem.

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3 hours ago, Nacho Marco Segui said:

Exhaust, because hot air goes up.

 

Inside a PC case that doesn't really matter. Air moves constantly and fans determinate where air goes.

 

3 hours ago, AlexC1202 said:

I never thought about that. Thanks!

One question though, wouldn't that mean that the CPU temperatures will be worse because i am running hot air through the radiator?

Also, is it ok if the radiator fans will be in a pull configuration? i cannot mount them on a push configuration (so the fans inside the case pushing air out through the radiator). 

Would they do the trick in pull config?

 

Temps would be under 5C different. You can always do some testing, but won't matter that much in the end.

 

2 hours ago, AlexC1202 said:

And if i do the top 2x140mm as intake, and the H110i and the back fan as exhaust, wouldn't that be kinda the same thing? Then the lack of filter of the back fan wouldn't be a problem.

Having rear exhaust would make top intakes useless. Cool air would be sucked out before it can do anything. Buy some filters instead. Much easier.

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