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H70 - Blow the hot air inside?

post #1 of 25
Thread Starter 
Hi guys,

Just about to install my H70 in my machine. I have done a research on installation, tips, etc.

It seems that against Corsair's recommendation of pulling the air from outside to inside the machine, some overclockers tried the other way around and the temperature difference between both setups is minimum.

I understand that it doesn't matter for the CPU if the air comes hot inside the case because the radiator is the part that needs fresh air (logically from outside), but I am concerned about the rest of my system, specially when I am overclocking my RAM and GPU all together and they also need cool air.

To me this system is great but ideally the hot air should be blown to the outside. A simple solution would be a pipe attached to the other end of the H70 and out of the case, but I am sure Corsair people thought of something like that and didn't consider it necessary.

Now, my question is:

Anyone here that uses the H70 and also overclocks GPU and RAM that can tell me if I should worry about this manufacturer's recommended setup?

I am going to kick this q6600 to the limit so I am expecting some high temps to be addressed by the H70.

Cheers.
post #2 of 25
Quote:
Originally Posted by helipilot View Post
Hi guys,

Just about to install my H70 in my machine. I have done a research on installation, tips, etc.

It seems that against Corsair's recommendation of pulling the air from outside to inside the machine, some overclockers tried the other way around and the temperature difference between both setups is minimum.

I understand that it doesn't matter for the CPU if the air comes hot inside the case because the radiator is the part that needs fresh air (logically from outside), but I am concerned about the rest of my system, specially when I am overclocking my RAM and GPU all together and they also need cool air.

To me this system is great but ideally the hot air should be blown to the outside. A simple solution would be a pipe attached to the other end of the H70 and out of the case, but I am sure Corsair people thought of something like that and didn't consider it necessary.

Now, my question is:

Anyone here that uses the H70 and also overclocks GPU and RAM that can tell me if I should worry about this manufacturer's recommended setup?

I am going to kick this q6600 to the limit so I am expecting some high temps to be addressed by the H70.

Cheers.
You should *always* use radiators as exhausts if they are to be mounted in exhausts locations. If the stock fan that was there was an exhaust, then the rad should be an exhaust if you put it there. Since the CPU is not heating up the case, the air inside the case is not that warm at all. Mount it exhausting, and the CPU will stay cool, and the other components will run at the lowest possible temps.
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post #3 of 25
Thread Starter 
Quote:
Originally Posted by railfan844 View Post
You should *always* use radiators as exhausts if they are to be mounted in exhausts locations. If the stock fan that was there was an exhaust, then the rad should be an exhaust if you put it there. Since the CPU is not heating up the case, the air inside the case is not that warm at all. Mount it exhausting, and the CPU will stay cool, and the other components will run at the lowest possible temps.
That makes perfect sense.

I wonder why Corsair says otherwise...

Thanks.
post #4 of 25
I had mine mounted in the back of my case and had the fans set as an intake to pull cool air from outside the case. I had exhaust fans at the top of my case pushing out the hot air. my i7 950 never got above 50c even under 100% load for 2 hours with Prime95. With that said, I honestly dont think it matters which way you set it as long as you have good air flow in your case.
post #5 of 25
Quote:
Originally Posted by helipilot View Post
That makes perfect sense.

I wonder why Corsair says otherwise...

Thanks.
try both and see what nets better temps.

generally speaking through radiators function a lot better when you blow the hot air out.

Corsair's mentality is intaking the cooler air from outside the case will net lower temps but this isn't necessarily the case for most people
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post #6 of 25
Quote:
Originally Posted by helipilot View Post
That makes perfect sense.

I wonder why Corsair says otherwise...

Thanks.
Corsair is basically trying to keep unnecessary RMA's to a minimum by eliminating the possibility that some ridiculously hot component is blowing warm air right into the rad. I'm sure the people that posted that recommendation knew that most experienced computer builders would know that its fine to blow the air out which is why they didn't bother saying.
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post #7 of 25
I have a 480 venting inside the case and have another on the way so I use my H50 as an intake. Of course, I've modded my case to bring as much cool air and vent as much hot air out of my case as possible.

I do agree though: try both and see which works better in your case.
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post #8 of 25
Always pull cold air in....
post #9 of 25
I don't understand why anyone would blow hot air from a rad into their case on to the hardware...

I always ran my H50 with two fans as exhaust, and it worked great.
post #10 of 25
Quote:
Originally Posted by nickbaldwin86 View Post
I don't understand why anyone would blow hot air from a rad into their case on to the hardware...

I always ran my H50 with two fans as exhaust, and it worked great.
I can see your point but it's not the hot air that's the problem, as the hot air is usually just pulled back out the top. The problem is that now the top fan is almost completely occupied removing air blown in from the rad and there is no way to pull the warm-ish case air out anymore.
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