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Internal Radiator Mounts: What are the effects of exhausting the air in the case?

post #1 of 10
Thread Starter 
With the event of the Cosmos S, which apparently fits the 120x3 HW but not the Thermochill radiators, in the top of the case with it appears up to 6 fans, a totally enclosed solution appears to be a real possiblity.

However, that would exhaust the heated air in the case. Is that an issue, or is the air temperature rise so small that it isn't an issue?

With the radiator fans and the side fans pressurizing the case, are their enough extracting fans to vent the case?

Thanks,

David
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post #2 of 10
It should give you a C or two better temp's keeping your rad out in the cooler room ambients, that is if it a well ventilated case...
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post #3 of 10
ira, he wants to suck outside air trough the rad into the case.
and it wont matter much. actually, it helps provide airflow over your ram and motherboard, so it can only be beneficial, even if air temps are about 2C higher.
post #4 of 10
Quote:
Originally Posted by ChielScape View Post
ira, he wants to suck outside air trough the rad into the case.
and it wont matter much. actually, it helps provide airflow over your ram and motherboard, so it can only be beneficial, even if air temps are about 2C higher.
Like i said noob, I like keeping my rad out in the cooler room ambients...I could care less where you put yours, that is if you ever do WC something...
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post #5 of 10
^

Anyway, I'd have every other fan in the case pulling in cool air from outside in, and then have the rad fans pulling the air from the inside of the case out. That way you'll be giving your rad fresh cool air and also be circulation fresh cool air across your other components that aren't water-cooled as well. Otherwise you're dumping the exhaust heat from your rad into your case. Might be only a C or 2 ... but every little bit can help.
post #6 of 10
Quote:
Originally Posted by ira-k View Post
Like i said noob, I like keeping my rad out in the cooler room ambients...I could care less where you put yours, that is if you ever do WC something...
Lol, winner!
    
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post #7 of 10
Quote:
Originally Posted by ira-k View Post
Like i said noob, I like keeping my rad out in the cooler room ambients...I could care less where you put yours, that is if you ever do WC something...
my watercooling or not doesnt have much to do with this. my GeminII blows air over my mobo just as well.

also, cant you ever just argue in a friendly manner? its not like im trying to offend you or anything.. :/
post #8 of 10
Thread Starter 
Gentlemen, no need to battle. I am the 'noob' here.

The Cosmos S seems designed to put a triple radiator at the top. Three fans fit above the top under the grill. Presumbably there is also space for three fans under it. The mounting flange won't fit a Thermochill without a custome shroud or adapter.

However, if exhausting the air into the case, the case temps would be slightly higher, and it would be fighting at least the side fan, which would also be raising case pressure. The hard drive fan and rear case fan would be drawing air out, but they are much smaller than the fans bringing air in.

If the fans are used for exhaust, they would be drawing slightly warmer case air. And the 3 or 6 radiator fans would probably exceed the capacity of the other fans feeding the case, which presumably would be the 250mm side fan, and pressurizing rear and hard drive fans. Additionally, exhausting out the top would be blowing the air at me.

Most radiators are outside, however it is a bit neater and less prone to damage inside. There are some pictures where people have done inside setups, but not much discussion on the airflow and consequences.

Thanks,

David
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post #9 of 10
just mount the rad in the top if you can with the shroud solution, and flip the side fan to act as an exhaust if possible. yes, the internal temps of the case will rise said few degrees over having the rad completely seperate from the case, but graphics and chipset coolers will do perfectly fine either way. especially since the radiator fans will be very close to the motherboard, the air coming from those will provide more airflow over the motherboard cooling.

though ira may and probably will disagree with me, id rather put the rad inside the case, as you said for protection, and it would also be better for lan-parties and such.
it would also look better, but again, thats personal.

also, if you dont already have the thermochill why not get the Black Ice GTX? it performs a bit better (starting at around 47CFM) and mounts without problems. its also a little cheaper and iirc also somewhat thinner, giving you more space to work.

IMHO, the advantages of mounting internally outweigh the disadvatages, as well as the advantages of mounting externally.
post #10 of 10
Quote:
Originally Posted by DavidNJ View Post
Gentlemen, no need to battle. I am the 'noob' here.

The Cosmos S seems designed to put a triple radiator at the top. Three fans fit above the top under the grill. Presumbably there is also space for three fans under it. The mounting flange won't fit a Thermochill without a custome shroud or adapter.

However, if exhausting the air into the case, the case temps would be slightly higher, and it would be fighting at least the side fan, which would also be raising case pressure. The hard drive fan and rear case fan would be drawing air out, but they are much smaller than the fans bringing air in.

If the fans are used for exhaust, they would be drawing slightly warmer case air. And the 3 or 6 radiator fans would probably exceed the capacity of the other fans feeding the case, which presumably would be the 250mm side fan, and pressurizing rear and hard drive fans. Additionally, exhausting out the top would be blowing the air at me.

Most radiators are outside, however it is a bit neater and less prone to damage inside. There are some pictures where people have done inside setups, but not much discussion on the airflow and consequences.

Thanks,

David
Thats a problem, if you have the rad fans drawing into your case you would end up with a positive air pressure and get hot spots...You would want at least as much out as in and I like more out then in for a negative pressure to prevent hot spots...If you have your rad in the top of your case with fans pulling out you will have the hottest air in your case going through your rad...If you do it internal I would put it lower since the top of your case is the hottest...Its not going to hurt you over a C or two I wouldn't think..

A lot of guys put them on the outside top of the case...


Quote:
my watercooling or not doesnt have much to do with this. my GeminII blows air over my mobo just as well.

also, cant you ever just argue in a friendly manner? its not like im trying to offend you or anything.. :/ __________________
You mean you need to replace the cooling that you lose form a HSF to near-by components like ram and v-reg's when you go to WC'ing? Who would of thought, thats an amazing concept!!!...No not really everyone knows that, most just don't want to do it with the rad fans...



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