Question about fans position in the H100i v2.

[Leoplate25]

Hi, i have a pull configuration (because of the dust) and doing some test, i got the same temps in pull or push. I have the radiator in the front of my Versa H34 and the question is where should i mount the fans? Here's a pic of what i'm trying to know:


I have an H100i v2 with a 9600k and 3 TT Riing white LED 120mm fans.

 

[DeathtoGnomes]

Heat ( aka HOT AIR ) rises. My first choice would be to mount to the top pushing air up and out.

Many of the new cases lately only let you mount radiators to the front pulling air in. That also affects airflow in such a way that using a fan config of 2in/2out will give you a slight negative case pressure. Not a bad thing depending how dusty your environment is.

EDIT: to be clear for the inane

 

[Leoplate25]

Heat rises. My first choice would be to mount to the top pushing air up and out.

Many of the new cases lately only let you mount radiators to the front pulling air in. That also affects airflow in such a way that using a fan config of 2in/2out will give you a slight negative case pressure. Not a bad thing depending how dusty your environment is.

Just did a test: I'm getting better temps putting the fans as in image 1. I tried the top but i got worse results. That's why i'm asking which one of the 2 pics are recommended. Thanks!

 

[erocker]

Front fans intake, rear exhaust. Radiator mounted up top with fans blowing through exhausting out the top.

In image 1, your filling your case with warm air from the radiator. Not ideal.

 

[oxrufiioxo]

Top or front mounted it almost makes zero difference for me with a 2080 ti/9900k which puts out way more heat than what you're using.

If front mounted intake is ideal.
If top mounted exhaust is ideal.

 

[Leoplate25]

Top or front mounted it almost makes zero difference for me with a 2080 ti/9900k which puts out way more heat than what you're using.

If front mounted intake is ideal.
If top mounted exhaust is ideal.

You think that the way i'm having it now is the best way? Thanks for your answer.

Front fans intake, rear exhaust. Radiator mounted up top with fans blowing through exhausting out the top.

In image 1, your filling your case with warm air from the radiator. Not ideal.

I am in a very dusty neighborhood, enviroment, etc, so if i put the fans in a push config, i'll need to be cleaning them every month, that's why i choose a pull config. In fact, i tried both, push and pull, with the same results. Thanks for your answer!

 

[oxrufiioxo]

You think that the way i'm having it now is the best way? Thanks for your answer.

Best is going to come down to your own testing every case/cooling combination is a little different but there is nothing wrong with front mounting the radiator with fans set as intake.

 

[Leoplate25]

Best is going to come down to your own testing every case/cooling combination is a little different but there is nothing wrong with front mounting the radiator with fans set as intake.

I'm having 1 or 2 degrees less the way i set it now. Thanks again!

 

[EarthDog]

Your chasing a couple of a C anyway you slice it. Dont put too much into it. Where you're going a couple of C is largely irrelevant.

With the rad mounted in front taking in cool air, you'll get better cpu temps with warmer internals. If you mount the rad up top, the internals/system gets a few C cooler air going through it while the rad gets a few C warmer air going through it (and slightly higher cpu temps). I'd go for the latter (#1) as erocker said....airFLOW is key.

Also, push and pull shouldnt have a bearing on the amount of dust... it is 6 of one, half dozen of the other.

 

[DeathtoGnomes]

When you're under heavy load for long periods, and the radiator is mounted in front, as intake, you will see higher temps than if you top mounted the rad.

 

[Leoplate25]

When you're under heavy load for long periods, and the radiator is mounted in front, as intake, you will see higher temps than if you top mounted the rad.

Should i put it with a push config (top)? Or pull is fine too?

 

[Samiam66]

have the same configration on two of my pc's

So corsair fans are main pushers they bring fresh air into case from front and pushes air thru radiator to
aftermarket (2) 120mm fans are mounted on backside of radiator pulling the air thru..the airflow is into the case
then rear fan 140mm and two 120mm fans up top do the exhaust of all air...

I could have done three 140mm fans up top ....But I wanted to keep my optical and my hot swapping 3.5 drive bays
that accept a bare drive

My 3700X Ryzen occasionally gets up to 140ish farenheit under a heavy load normaly idles at 85-90F
As far as dust control go to hardware store by a filter material they will have a large selection
put in front of two intake fans in front of case

the bigger question is the power source to the second pair of fans .. are you going to just split off of other rad fans ..

Because you could do a PWM OR DC control from second CPU header ....and or... use a manual
fan control switch that most new cases come with these days to give you adjustability to the second fans

I agree with Earthdogs & Oxrufiioxo opinions from above

 

[Leoplate25]

have the same configration on two of my pc's

Same config like in the 1st image? Thanks!

 

[Waldorf]

That heat rises is not relevant on forced air cases.
Sure it will rather improve cooling, but technically u can pull air in on the top and blow it out the front/bottom, as long as there is proper airflow.

As long as either cpu or gpu are aircooled, you will affect temps on one,
to improve temps on the other one.
Either set cpu rad up front (adding heat to case/raising gpu and case temps a bit),
or on the top (blowing out, and what i recommend) dumping the cpu heat outside, and significantly lowering all other temps incl ram/chipset/vrms/drives etc.
One reason i went LC on gpu as well, now have vrms that never pass 45*C under full load.

 

[Samiam66]

here are pics case can accept 360 up front .. so.. red fan on bottom is also pulling in fresh air below radiator
but that fan is a controlled by chassis fan header 3 on MB

 

[Leoplate25]

That heat rises is not relevant on forced air cases.
Sure it will rather improve cooling, but technically u can pull air in on the top and blow it out the front/bottom, as long as there is proper airflow.

As long as either cpu or gpu are aircooled, you will affect temps on one,
to improve on the other.
Either set cpu rad up front (adding heat to case/raising gpu and case temps a bit),
or on the top (blowing out, and what i recommend) dumping the cpu heat outside, and significantly lowering all other temps incl ram/chipset/vrms/drives etc.
One reason i went LC on gpu as well, now have vrms that never pass 45*C under full load.

I have to see vrm temps. Gpu is basically the same temp and CPU is a little better for now. I'll give mounting the cpu on the top a try and see what happens.

here are pics case can accept 360 up front .. so.. red fan on bottom is also pulling on fresh air
but that fan is a controlled by chassis fan header 3 on MB

Thanks for taking the time and show me the pics. I have only pull configuration.

 

[Waldorf]

Rad to the top, one fan to the rear, any spare fans use on the front.
Unless you're using on-board gpu, than not much difference.

Only mentioned vrms as im on ryzen 3xxx cpu..

 

[Leoplate25]

Rad to the top, one fan to the rear, any spare fans use on the front.
Unless you're using on-board gpu, than not much difference.

Only mentioned vrms as im on ryzen 3xxx cpu..

Prime95 v26.6, 55 degrees C, VRM 32 degrees C (Hwinfo64). Idle: CPU 24 C and GPU 23 C.

 

[Samiam66]

Oh yeah River Plate AC-DC great concert 2009

 

[Leoplate25]

Oh yeah River Plate AC-DC great concert 2009

Great concert, awful football team that season, haha.

 

[Waldorf]

Looks good.
If you dont have front fans, get some swiss arctic F12/14 pwm,
they have decent airflow, arent noisy and quality comparable to noiseblocker/noctua, at about a third of the cost.
And since some claim that they arent as good: which noctua consumer fan gets 10y warranty?

F12 PWM | 120 mm 4-Pin Case Fan with PWM | ARCTIC

The PWM case fan series allow perfect case fan regulation with PWM and therefore the required cooling at the lowest noise level.

www.arctic.ac

 

[EarthDog]

Should i put it with a push config (top)? Or pull is fine too?

As stated earlier, it doesnt matter. Whatever you prefer.

 

[bug]

The problem I see with setup #1 is the intake goes through the radiator, so you're taking in warm air. The problem with setup #2 is there's no intake, so air goes in wherever it can.

I would use setup #2, but reverse the airflow of the fan on the left. I'm not sure it will be enough intake (and it may clash with the airflow from the CPU, but you can probably reverse that as well), but I think that may yield the best results.

 

[Leoplate25]

Looks good.
If you dont have front fans, get some swiss arctic F12/14 pwm,
they have decent airflow, arent noisy and quality comparable to noiseblocker/noctua, at about a third of the cost.
And since some claim that they arent as good: which noctua consumer fan gets 10y warranty?

F12 PWM | 120 mm 4-Pin Case Fan with PWM | ARCTIC

The PWM case fan series allow perfect case fan regulation with PWM and therefore the required cooling at the lowest noise level.

www.arctic.ac

Those temps are with radiator in the front. Today ill check with the rad on top. Thanks.

 

[EarthDog]

Buddy, you are not chasing high overclocks... you do not need to search after every C. I also worry about your testing methods... different ambient, length of test (should be at least 30 mins since you are on water and the radiator needs to be saturated), re mounting the block, etc... all important when you are trying to figure out such small differences.

I'll say it again and you simply need to choose....................

If you go with #1 you should see slightly better CPU temps, but the internals, after running for a while, will be warmer. If you go with #2, the internals will be cooler and the CPU slightly warmer. Either way will not make a difference for you... the 1-3C difference isn't more overclocking and likely not even more quiet. Leave it as it sits and enjoy your PC.