H80i etc Intake or outake

luke2013

luke2013

luke2013

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21 Feb 2013
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Hi guys im i have a fairly small case with a lot of hardware in it.

cooler master storm scout case,
h80i water cooler,
3770k processor
7970 ghz graphics card,
2x 1 tb hard drive
1x 240 SSD
16 gig of ram

im thinking about having the h80i and an exhaust (i don't like the idea of pumping warm air into the case my graphics card get hot enough as it is when overclocking) and then all the other fans; top, side and front as intake..

I know the top fan is normally an exhaust hot air rises but i figure those crosair 120 x2 should pull allot of that air out and hopefully that air is pretty cool with all of those fans as intakes ? Any thoughts
 
luke2013 said:
Hi guys im i have a fairly small case with a lot of hardware in it.

cooler master storm scout case,
h80i water cooler,
3770k processor
7970 ghz graphics card,
2x 1 tb hard drive
1x 240 SSD
16 gig of ram

im thinking about having the h80i and an exhaust (i don't like the idea of pumping warm air into the case my graphics card get hot enough as it is when overclocking) and then all the other fans; top, side and front as intake..

I know the top fan is normally an exhaust hot air rises but i figure those crosair 120 x2 should pull allot of that air out and hopefully that air is pretty cool with all of those fans as intakes ? Any thoughts
Click to expand...

I've tested every possible combination on my system and this is definitely the best all round.

o0CXliO.jpg



If you have a gpu that dumps most of its heat out the rear of the case then maybe you could have you top exhaust sucking air in. In my case however the accelero dumps its heat inside so my h80i exhausts the heat from the core and my top 200mm takes away the heat from the vrms.
 
mranderson said:
I would try the h80 fan as an intake. It will be dumping hot air in the case but you already have a bigger fan moving it out straight away.
Click to expand...

I wouldn't advise it having tested both methods. At most it will only improve cpu temps by 1c however it will increase gpu temps by 2-5c. Not measured motherboard/dram temps but you can expect to see those increase by a few c as well.
 
mranderson said:
I agree. If however the OP wants to oc the CPU to the max, using the h80 fan as intake is the way to go.
Click to expand...

I agree mranderson I questioned this myself this week, and ended up reversing both H80i fans from exhaust to intake. having thought about it,and from what someone else told me this week, sucking fresh air from outside the case onto the radiator and into the case made more sense that pushing already warmed air from inside the case through the radiator and out! The results can be seen here

first 15min prime95 pass

http://img560.imageshack.us/img560/7316/42982770.jpg

second 15min prime95 pass

http://img268.imageshack.us/img268/8758/73727340.jpg

I have the Corsair 500R with 2 top exhaust along with the supplied 2 front intake and side intake
 
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Ill be looking to OC the cpu to 4.5 6 or 7 when im home in a few weeks.

I need to redo my thermal past on my h80i as i was getting some high temps. Hopefully its got enough cooling power to have it set as an exhaust. My GPU temps are fairly high when OC so hopefully a side fan blowing on it and the top fan extracting will be the way to go.
 
Corsair says intake if i remember the instructions correctly

but if you have enough airflow in the case we are talkign about a margain difference in air temps.
 
LtMatt said:
I've tested every possible combination on my system and this is definitely the best all round.

o0CXliO.jpg



If you have a gpu that dumps most of its heat out the rear of the case then maybe you could have you top exhaust sucking air in. In my case however the accelero dumps its heat inside so my h80i exhausts the heat from the core and my top 200mm takes away the heat from the vrms.
Click to expand...

This is the best way. Outfow is much better. If you do intake you will need filters because of all the dust you'll get on the rad and in your case.
 
I believe you are wrong. This way he will get more dust in the case as he is creating negative pressure in the case. Cases that do not collect dust are the ones where you have positive pressure (more intake fans)
 
mranderson said:
I believe you are wrong. This way he will get more dust in the case as he is creating negative pressure in the case. Cases that do not collect dust are the ones where you have positive pressure (more intake fans)
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Just saying I'm wrong is wrong...?

Well I had mine as intake in the beginning and it brought in so much dust. My corsair 600t is less dusty now because of switching fans around as outflow.

I say each case is different. everyone should do both and see what's best for them.
 
The principle is the same. As long as you have filters attached to the intake fans, positive pressure configurations are better. Have tried it in every case (including many HTPC cases) and the result was always the same.
 
mranderson said:
The principle is the same. As long as you have filters attached to the intake fans,*** positive pressure configurations*** are better. Have tried it in every case (including many HTPC cases) and the result was always the same.
Click to expand...

I have the Silverstone*** positive pressure configuration*** FTO1, l clean mine monthly and them give the case a quick blast of air all together 10 minute job. You can take the top dust filter out just like the bottom front, contrary to what's been said in some reviews, when l had a H50 it was set to exhaust.
 
mranderson said:
Did you try it as an intake?
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Hi, yes my case FTO1 uses *** positive pressure configuration*** both 180mm fans are set to intake air so the H50 was getting cool air. If the H50 was set to blow air into the case the hot air flow was directed onto my GPU by the top fan increasing the GPU temps by a couple of degree's.

Also if you having the air blowing in the case the rad gets covered with dust a lot quicker so increasing temps, both my 180 fans have dust filters. I did not want to fit a dust filter on the H50 as they reduce air flow this was another reason to have the air flowing out.
 
"Corsair say" doesn't mean a thing... except keeping cpu cooler at the expense of everything else in the case having to use preheated air to try and keep cool. :rolleyes:

Which goes against basic air cooling theory... cooler air in = cooler components.

The CPU isn't the only thing that increases in temp when you overclock... and if the case temp is 8-10c hotter than ambient all mobo chips around CPU will be 8-10c hotter too... and they will already be running hotter than stock because they aren't getting the airflow a stock system gives them.
 
hey guys I have the following in my new build and need help with something

Zalaman z9 plus case,
intel i5 3570k - im looking to overclock this In future
16gb ddr3 vengeance pro

i don't currently have any fans in my case as iv took them all out as i wish to purchase the corsair SP fans

iv just purchased the corsair h80i water cooler but my question is, shouldi install the fans out intake or exhaust as the booklet says intake for best cooling performance
 
If you are fitting just the H80i, then fit it as intake - if you intend to fit more fans (always best to have more intake than exhaust to create positive pressure) then fit it exhaust.

I am guessing that Corsair have written the instructions for people who are probably less "enthusiastic" about performance / overclocking (average Joe public) and probably expect that the H80i would be the only fan in the system or replace the only fan in the system. Hence why its better to have it as intake.
 
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