Question about optimal airflow.

[ArinBane]

Hey good people at LinusTech and good users of  this forums =),

 

I recently bought a new PC and I want to make the airflow for better and optimal cooling.

, since I never owned an expensive computer (for my standards) I never cared about cooling or temperatures.

But now that I do I want to make everything ''perfect'' so to speak so my hardware stays alive for as long as possible.

I made a simple sketch to show how is my current airflow setup and by watching the videos from Linus I think this is positive pressure.

Since I live near an airport and I have to keep the balcony door open due to not having AC there is a high accumulation of dust in the room,
and because of that I have all fan slots covered with aluminium dust filters (even the outtake fans when the PC is off)

 

More information about the fans

All 6  fans that are additionally installed are 120 mm Cooler Master Jetflo Blue LED

so that makes  2 at the top of the case connected to 4 pin chassis fan slots and are regulated by the temperature of the CPU, 

other 4 are connected to a PSU with extended adapters and are working at 1200 rpm.

 

So sum it up 2 fans are outtake fans and 1 is at the top of the case , the other one is at the back + the GPU that's blowing the air out.

4 fans are intake fans and one is located at the top , 1 at the bottom and 2 at the front of the case.

 

I do not have anything blocking the air , I took the HDD trays out and positioned my SSD and HDD at the place where optical drivers were supposed to be.

Cable management is done on the side of the case so no cables are obstructing the airflow either.

 

CPU cooler is Cooler Master 212 EVO Air Cooler

GPU uses stock reference blower fan and pushes the air out in the back (which makes it another exhaust fan =P cptn.obvious)

PSU us located at the bottom and takes air from under the case (no effect on airflow as it is a closed system by itself)

 

I have put the sketch I made for the purpose of this post in the post and as an attachment, so refer to that for easier visual understanding.

 

So now to the question for all the ppl who know stuff about this stuff =)
Is this airflow good or bad or really god or really bad , and can it be improved in any way (dust accumulation , better temperatures and ect)

Is the pressure negative , positive or neutral ?

Is the fan on the bottom of the case conflicting with two intake fans at the front of the case?

If I change the top fan to be another outtake would it improve the airflow or would it  make it worse?

If I change the top fan to be intake would it conflict with the outtake on the back ? 

Any tips for improvement would be appreciated.

 

After I sort this out in the best way possible I will make post on some forums and articles on some blogs and even a video about the airflow for yt.
Thanks in advance for reading this long post and for any help / tips about the situation.
Oh an one other thing, I cant afford water cooling anytime soon.

So water cooling is out of the question  unless someone have extra water cooling stuff that they don't need =P.

 

 

My Rig:
MBO - Asus Z97-P

CPU - i7 4790k

GPU - GTX 980Ti Reference

RAM - 16Gb Corsair 1600Mhz 4x4Gb

PSU - EVGA 650w Gold Cert. Modular 80 Plus

STR - 120Gb Kingston SSD for OS + 2TB HDD WD Blue 7.2k rpm

CASE- NZXT Tempest 410 Elite Black

 

 

 

[Aytex]

good to go nice art

[Stefan1024]

Looks not bad at all. But personally i would turn the fan at the top so both are outtake. An intake right next to an outtake is suboptimal.

The CPU cooler will be ok with that.

[Flowroro]

Make both top exhaust, hot air rises, you don't wana work against natural air flow. Also you should balance out intake and exhaust, 3 in 3 out, works best that way imo

[LLOYD-AF]

Make both the top fans exhaust, the way you have them set up now is going to interrupt the airflow and you could end up with trapped warm air in the case. apart from that it looks good.

[ArinBane]

Make both top exhaust, hot air rises, you don't wana work against natural air flow. Also you should balance out intake and exhaust, 3 in 3 out, works best that way imo

I had it setup like that 3 in 3 out but the GPU fan is an additional outtake so there is more air coming out than in  making a negative pressure, I found lot of dust on other places where air can come in , like some screw slots and meshed PCI slots on the rear, temperatures inside where 5-7 C higher than the current setup indicated in the post

[Rhinoceros]

Impressive man, may I ask where the temperature was higher? (Ie: what compensation was providing the temperature reading?)

[ArinBane]

Impressive man, may I ask where the temperature was higher? (Ie: what compensation was providing the temperature reading?)

Config of 3 outtake (2 top 1 rear) and 3 intake (2 front 1 bottom) , the temperature sensor was sitting inside the case on PSU and was done under high system load , so I'm talking about temperature inside the case not of the components (GPU core , Cpu core , chipset)

[rjfaber91]

Make both the top fans exhaust, the way you have them set up now is going to interrupt the airflow and you could end up with trapped warm air in the case. apart from that it looks good.

 

Based on my experience I'm calling quite a degree of bullshit on that one. The boilancy forces that make hot air rise are very, very weak, especially with such a low temperature difference, so fans can overcome that force without even needing to try. Apart from that, the top of a case is also one of the best sources of dust-free fresh air. Top intakes work fine, absolutely fine, and they're perfect when trying to achieve positive pressure in cases with relatively open rear panels.

 

Config of 3 outtake (2 top 1 rear) and 3 intake (2 front 1 bottom) , the temperature sensor was sitting inside the case on PSU and was done under high system load , so I'm talking about temperature inside the case not of the components (GPU core , Cpu core , chipset)

 

Unless you make the intakes spin significantly faster than the outtakes in that setup, you'll end up with negative pressure, which I don't believe is what you wanted...

[ArinBane]

Based on my experience I'm calling quite a degree of bullshit on that one. The boilancy forces that make hot air rise are very, very weak, especially with such a low temperature difference, so fans can overcome that force without even needing to try. Apart from that, the top of a case is also one of the best sources of dust-free fresh air. Top intakes work fine, absolutely fine, and they're perfect when trying to achieve positive pressure in cases with relatively open rear panels.

 

 

Unless you make the intakes spin significantly faster than the outtakes in that setup, you'll end up with negative pressure, which I don't believe is what you wanted...

Yea , that is exactly what I don't want to happen, guess I'll have to go grab a fan controller when I can and test outtake fans on lower rpm or intake at higher then they currently are, connecting 120mm CM Jetflo to full speed sounds like a damn spaceship

 

 

 

Unless you make the intakes spin significantly faster than the outtakes in that setup, you'll end up with negative pressure, which I don't believe is what you wanted...