Fan orientation and positioning?

[TheOtherOne7107]

I'm building a computer and I bought 3 120mm fans, and the case came with 2 140mm fans on the front. The case can have 1 120 in the back, 2 120mm on top and 3 120mm (2 140mm) in the front. How should I orient the fans? I know you're supposed to have positive pressure, but if I had a 120mm exhaust at the back, 2 intake on top, and 2 intake in front, that just seems like way too much positive pressure. Is too much positive pressure a thing? Would it be better to have the 2 140mm fans exhaust at the front and the other 3 120mm as air intake on the top and back?

[Hinjima]

11 minutes ago, TheOtherOne7107 said:

I'm building a computer and I bought 3 120mm fans, and the case came with 2 140mm fans on the front. The case can have 1 120 in the back, 2 120mm on top and 3 120mm (2 140mm) in the front. How should I orient the fans? I know you're supposed to have positive pressure, but if I had a 120mm exhaust at the back, 2 intake on top, and 2 intake in front, that just seems like way too much positive pressure. Is too much positive pressure a thing? Would it be better to have the 2 140mm fans exhaust at the front and the other 3 120mm as air intake on the top and back?

I'd put the 3 fans you bought in the front.  120x3 front and then 1 exhaust, maybe one of the 140 from the front.  I am not a fan ( hurdur ) of fans in the top if you run a normal tower aircooler as they would distrupt the airflow through the aircooler to the back fan.

[TheOtherOne7107]

4 minutes ago, Hinjima said:

I'd put the 3 fans you bought in the front.  120x3 front and then 1 exhaust, maybe one of the 140 from the front.  I am not a fan ( hurdur ) of fans in the top if you run a normal tower aircooler as they would distrupt the airflow through the aircooler to the back fan.

Would it help if I said that I'm using a stock intel cooler?

[Hinjima]

5 minutes ago, TheOtherOne7107 said:

Would it help if I said that I'm using a stock intel cooler?

I'd say then: Keep the stock front fans, add one at the rear, that should be sufficient.  If you want you can add one top exhaust as well, should keep slight positive pressure while exhausting enough air. That should also keep decent airflow over your motherboards VRM heatsinks etc Its all about replacing the air inside the case as fast as possible.

[PDifolco]

12 minutes ago, TheOtherOne7107 said:

Would it help if I said that I'm using a stock intel cooler?

Then why did you buy mostly useless case fans rather than a decent cooler ??? Just for looks ?

[TheOtherOne7107]

9 minutes ago, PDifolco said:

Then why did you buy mostly useless case fans rather than a decent cooler ??? Just for looks ?

The fans were on a really good deal and the pc is running an i5-11400, which a stock cooler should do just fine with. and maybe a little bit of looks too...

[PDifolco]

2 minutes ago, TheOtherOne7107 said:

The fans were on a really good deal and the pc is running an i5-11400, which a stock cooler should do just fine with. and maybe a little bit of looks too...

Prob is the stockrap Intel cooler is loud, and case fans will only add to it (esp. cheapo ones, what did you get ??)

 

[TheOtherOne7107]

 

4 minutes ago, PDifolco said:

Prob is the stockrap Intel cooler is loud, and case fans will only add to it (esp. cheapo ones, what did you get ??)

 

These ones.

[PDifolco]

8 hours ago, TheOtherOne7107 said:

 

These ones.

Arf those are worth more than your CPU

[AI_Must_Di3]

If you are going to run the intel stock cooler id go with the heavy positive pressure setup then. You want as much cool air getting in there as possible with those intel coolers. Make sure you use fan filters for the intakes too.

[TheOtherOne7107]

So it turns out, I got the case wrong. It can only fit a 120mm at the back. So we ended up putting 3 120mm intakes at the front, and 2 140mm exhausting at the top.

[TheOtherOne7107]

9 hours ago, PDifolco said:

Arf those are worth more than your CPU

Not when they're $70 off