Second Fan for H50

gwobbles

gwobbles

gwobbles

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Joined
5 Mar 2011
Posts
325
hi guys, just wondering what fan to use on my h50 to achieve the push pull effect? Currently have the stock one installed blowing air out from the back.

Thanks!
 
Try changing it to sucking colder air in from the outside for a start. Importantly what are your cpu temps as there are limits to what an H50 can do due to teh small size of the radiator.
 
You will find most people have them exhausting air out the back of the case as bringing hot air into the case is not a very good idea. Im using Apache Blacks on push pull to good effect.
 
Apem said:
You will find most people have them exhausting air out the back of the case as bringing hot air into the case is not a very good idea. Im using Apache Blacks on push pull to good effect.
Click to expand...
Introducing hot air into the case is only a problem if you don't have adequate venting or have other fans blowing in. Lowering the cpu temps a few degrees is more crucial if you are pushing an overclock and harder to acheive as you have a limited radiator size which is restrictive to airflow whereas lowering the case temps is easily done by adding extra fan capacity.
 
As above.


I have 2 x Xilence Redwings on mine, taking in the cooler air from outside the case across the rad. Not thee most fashionable but good fans for the money.

I then have 2 fans directly above the output of the pull-fan inside the case, hopefully taking any warmer air straight out of the case.

31degs idle with my 955 o/c'd to 3.8 and 51degs on load.
 
mr griffin said:
+1

Agreed turn fan round sucking air into the case, it should lower temps by a few degrees
Click to expand...

That's what I did with mine. It kept my 2600K at ridiculously cool temps.

A friend of mine had a H50 and added 2 new fans for push/pull, I had push/pull but stole his original fan so I had 2 original H50 fans on there. Apart from being a little noisey it performed really well.
 
I read somewhere that CFM isn't hugely important for radiators, but more the pressure difference the fans can sustain. If this is indeed correct (which my gut tells me is so) what are the best fans for this, would it still be yateloons? and does it matter which side of the fan the pressure difference is, ie. if you have one fan pulling air through will you get a significant negative pressure in the rad or do you really need one pushing in to generate a +ve pressure?
 
I run 2 apache blacks with the H50. But one pushes air in. The other 1 is in the top of the case to suck air out. Due to the stock front case fan blowing air in and the restricted air blowing in over the fan. I get very good airflow.

The thing i would add is due to the metal grill and the large spindle centre on the fans you do get a pressure bubble on the surface of the RAD. So I cut out the metal fan grill off the case. This reduced the back pressure and allows more air over the RAD.

Dont forget to clean the rad it get dusty real quick.
 
Trackside said:
Introducing hot air into the case is only a problem if you don't have adequate venting or have other fans blowing in. Lowering the cpu temps a few degrees is more crucial if you are pushing an overclock and harder to acheive as you have a limited radiator size which is restrictive to airflow whereas lowering the case temps is easily done by adding extra fan capacity.
Click to expand...

+1

I have my H50 set up on push pull sucking air into the case. I have a CM690. The rad is mounted on the rear of case with fan drawing air in. Immediately after the push pull path I have 2 x 140mm exhaust in the roof venting the air straight back out again.

I had the fans configured venting out to start with but when I reversed the flow I got way beter temps under full load. My theory is if you have the fans on the rad exhausting what you are doing is drawing warm case air over the rad rather than cold 'room' air.

So to compensate if you are exhausting you would need more intake fans. More intake fans could lead to greater turbulence in the case meaning un even air flow leading to potentially higher temps.

My experience of having used both configurations is that taking air in across the rad and imedaitely exhausting using roof fans yielded better temps. Also means I don't need the central heating on in the office as the CM690 exhaust air keeps me warm :P
 
I Use the stock fan attached to the back of my case and a Gigaybyte on the inside. Push/Pull into the case blown out the front by a Xigamtek 120mm. The stock fan is the noisiest but runs at around 1300rpm whereas the other 2 run at more around 1000. Good info on the fan upgrades...I think i need to sync the 2 a bit better.
 
Scythe Gentle Typhoons are highly regarded and one of the best radiator fans due to it's static pressure and noise/speed ratios.

Akasa Vipers are another good alternative.
 
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