Watercooling Airflow

[CalVic]

Heya everyone,

Just a quick question regarding airflow when using watercooling, I'm currently using a H100i in Pull configuration inside a Corsair Carbide Air 540.

Here's a diagram of what my current setup:




As you can see, I have all the case fans as intake to feed the H100i fresh air and the pull fans as an exhaust. Is this correct?

Or should the rear fan be best left as an exhaust so that it doesn't disrupt the flow of air from the two front intakes?

Cheers!

 

[vorticalbox]

I would get a dust filter for that rear fan and leave it be.

That set up has a positive air flow (more in than out) meaning it will push air out of the little gaps so will have overall less dust.

 

[jamesriley94]

I would get a dust filter for that rear fan and leave it be.

That set up has a positive air flow (more in than out) meaning it will push air out of the little gaps so will have overall less dust.

This ^^

 

[Feronix]

I would get a dust filter for that rear fan and leave it be.

That set up has a positive air flow (more in than out) meaning it will push air out of the little gaps so will have overall less dust.

Agreed.

Although the front of this case isn't dust filtered either IIRC, it's just mesh at the front. Dust filters never hurt though

 

[CalVic]

Thanks chaps,

I think I have a dust filter laying around somewhere. Next on my list is probably to get some SP120 Performance fans for Push/Pull. At least I know for sure my chassis fan configuration is good

Cheers!

 

[Ghost_X]

Thanks chaps,

I think I have a dust filter laying around somewhere. Next on my list is probably to get some SP120 Performance fans for Push/Pull. At least I know for sure my chassis fan configuration is good

Cheers!

SP120 s can get really loud. In fact I'm replacing mine because of it. Look at some Scythe Gentle Typhoons for your rad.

 

[CalVic]

Looking at the Scythe Gentle Typhoons I think I'll go with them instead!

Air volume at full speed (12V), CFM ±10% 58.0
Noise level at full speed (12V), dB(A) 28.0


Compared to the SP120s:

Airflow 62.74 CFM
Sound Level 35 dBA


Only a few CM difference for which will probably make no difference on performance whatsoever.

 

[vorticalbox]

Looking at the Scythe Gentle Typhoons I think I'll go with them instead!

Air volume at full speed (12V), CFM ±10% 58.0
Noise level at full speed (12V), dB(A) 28.0


Compared to the SP120s:

Airflow 62.74 CFM
Sound Level 35 dBA


Only a few CM difference for which will probably make no difference on performance whatsoever.

28 dba is still quite loud but that's on 12 v, I would wire them to your psu on a fan speed reducer.

Nanoxia Deep Silence are nice fans but they are black with green fins.

68.5 cfm, 14.4 dba @ 12v

http://www.quietpc.com/na-ds-140

 

[CalVic]

Quite loud? I find Balanced mode on the H100i stock fans damn quiet!

I used to sleep in the same room as a few servers with around 50dB fans

Since I've gotten used to quietness, it sure is golden!

 

[vorticalbox]

Quite loud? I find Balanced mode on the H100i stock fans damn quiet!

I used to sleep in the same room as a few servers with around 50dB fans

Since I've gotten used to quietness, it sure is golden!

For me anything over 20 dba is too loud.

I have all the fans in my rig on 5v, I can still hear them and that bugs me, I'm waiting for my next upgrade to get a full loop on the go.

How could you sleep in a that noise! Lol

 

[clone38]

Got 9 of these for my case Corsair SP120 Quiet Series High Pressure Low Noise very nice fans also got the corsair 140mm at the back taking air out of the case.

 

[paultje162]

For me anything over 20 dba is too loud.

I have all the fans in my rig on 5v, I can still hear them and that bugs me, I'm waiting for my next upgrade to get a full loop on the go.

How could you sleep in a that noise! Lol

Well, There is a simple Theory for that:

1. Place some 50DB servers in your room.
2. Buy a hammer at your local shop(make sure it's a big one).
3. Turn on the servers and go to bed.
4. Grab the hammer and smash it as hard as you can against your head.
5. You will sleep very well that night. The next morning will be a little more painful than normally.

 

[NeverBackDown]

It's not really db that needs to be looked at.. it's mainly the frequency pitch that will catch yout ears. If you have a 100db fan next to your ear yet at a frequency human ears can't really hear then it'll sound quiet(btw not possible just an exaggerated example).

 

[Remmy]

Got 9 of these for my case Corsair SP120 Quiet Series High Pressure Low Noise very nice fans also got the corsair 140mm at the back taking air out of the case.

Not that I'm plus 1ing you or anything but I have 10 SP120 QEs, and an AF140 exhaust

 

[Granger]

Here is a trick for you, switch direction through the rad (air from outside the case pulled in) and switch the rear fan to exhaust.
Check the temps before you do it, then check your temps after, you should get a surprise

At the moment you are pulling warm air from inside the case to cool the rad, when you switch fan directions, you will be pulling in cooler air.
When I did that, my NB and SB temps jumped 1° C, but my CPU temp dropped by 5°, no change on video card temps.