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Direct exhaust air of video card ?

post #1 of 22
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I have been thinking of making a little something that would direct the hot air being released out the back of a video card. Are there any companies that produce a product like that, or can anyone point out any ideas/threads that I can look at?

I'm thinking of taping cardboard covered in foil; not sure it will look good but I could care less about how it looks...

Any ideas?
    
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post #2 of 22
Are you trying to direct it out the back of the case or out the back of the card into the case? I am inclined to think the first one. If that is the case. there are several companies who make cards that way stock. I tried to convert a 450 I have to rear exhaust by using electrical tape and it hurt temps by about 10c.....just some food for thought.
post #3 of 22
Thread Starter 
Quote:
Originally Posted by xxlawman87xx View Post
Are you trying to direct it out the back of the case or out the back of the card into the case? I am inclined to think the first one. If that is the case. there are several companies who make cards that way stock. I tried to convert a 450 I have to rear exhaust by using electrical tape and it hurt temps by about 10c.....just some food for thought.
At the moment I'm using an ASUS GTX465. It's a reference design and works well; designed to blow the hot air out the back of the case.

The issue I have is where my case is, I have a feeling a lot of that hot air is getting re-circulated through the side intake. I'd like to make a little thing that could direct the hot air coming out the back to the right (where no air is being sucked in).
    
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post #4 of 22
Quote:
Originally Posted by GanjaSMK View Post
I have been thinking of making a little something that would direct the hot air being released out the back of a video card. Are there any companies that produce a product like that, or can anyone point out any ideas/threads that I can look at?

I'm thinking of taping cardboard covered in foil; not sure it will look good but I could care less about how it looks...

Any ideas?
Active (with fan) or purely passive?

If active, something like CoolerMaster ACTS 840's external VGA air duct? See pic below.

I have diyed an air duct recently which can be attached (with a little mod, of couse) to the case back to cover the entire 7 expansion slots (see the green square in pic 2) , including the extraction of hot air exhausted from cards. Is this similar to what you have in mind?
Here:http://www.overclock.net/air-cooling...ttle-duct.html


Edited by windfire - 6/12/11 at 8:36pm
post #5 of 22
Quote:
Originally Posted by GanjaSMK View Post
At the moment I'm using an ASUS GTX465. It's a reference design and works well; designed to blow the hot air out the back of the case.

The issue I have is where my case is, I have a feeling a lot of that hot air is getting re-circulated through the side intake. I'd like to make a little thing that could direct the hot air coming out the back to the right (where no air is being sucked in).
OOOOH!! GOT ya! I think a couple companies make a thing for that. But to be honest I am too drunk to look it up...Dallas winning the title and all. BUt yea, your cardboard design should serve as an appropriate redneck engineering solution. I would say go for it. I know my rig vents heat like crazy out the back, then again, I am running 600mm of rads out the back...HAHAHHAHAHA
post #6 of 22
Thread Starter 
Quote:
Originally Posted by windfire View Post
Active (with fan) or purely passive?

If active, something like CoolerMaster ACTS 840's external VGA air duct? See pic below.
Oh yes. Something very much like that but is there something I could make?

I am visualizing a card board box lined with foil something that might look like:




So then, I guess something passive if it will work well enough?
    
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post #7 of 22
I'd say just make it, grab any old box, cut it up and tape it together. I think you will find no difference in temps though. The small amount of air that is being pushed out compared to the large amount of air in your room would negate any air temp differences.
post #8 of 22
Quote:
Originally Posted by GanjaSMK View Post
Oh yes. Something very much like that but is there something I could make?

I am visualizing a card board box lined with foil something that might look like:

So then, I guess something passive if it will work well enough?
Yes, that is feasible.
However, I would suggest:-
a. adding a larger fan (or 2 little fans like 40mm) to make it active to assist the air flow because the hot exhausted air needs to make that 90-degree turn and I am afraid hot air will not make that turn fast enough and will cause hot air being backlogged
b. using a larger size 'shroud' so that the hot exhausting air has more maneuver space just outside the slot

(It is lunch time for me and I will return to this thread later)
post #9 of 22
Thread Starter 
Quote:
Originally Posted by eggs2see View Post
I'd say just make it, grab any old box, cut it up and tape it together. I think you will find no difference in temps though. The small amount of air that is being pushed out compared to the large amount of air in your room would negate any air temp differences.
Hah... I'm not looking to lower temps so much even though I did mention it. I can physically feel the higher temperatures around my upper body - pretty annoying.

Bah.. I'll just make one and see what happens. The case is about desk level (on a separate table next to my desk) and to the right of it is the door into this room - so my thoughts are that if I direct the air that way, it has a better chance of getting pushed out the door instead of dumping fully into the room!
    
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post #10 of 22
just put a box around your GPU so none of the air can go into the case and the have a 80mm or so fan taped onto the pci slots inside the box so it can exhaust out of the case
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