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Drivebay fans

post #1 of 8
Thread Starter 
What are you guys' thoughts on drivebay fans- I have 2 gtx 470s SLId and curious as to what you guys think about drive bay fans- I have my setup in a silverstone FT02 and i was thinking the extra heat exhaust may help with thier temps.

The cards are about 60 to 70 degrees on idle- Underload theyre at about 80 to 95.

I know the FT02 is based on the heat rises principle- but i was thinking that an extra heat exhaust may help.

What do you guys think?
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post #2 of 8
??????? the more air movement the better? ???????????
post #3 of 8
If I recall someone in the Silverstone Case Club put a drivebay fan in their RV02 or FT02 and had a bit of a drop in GPU temperatures.

Certainly couldn't hurt in your situation with SLI I would imagine. 5.25 to 120mm adapters are pretty cheap.
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post #4 of 8
And to start, you can use some foam to stuff a fan in your 5.25 bay. See my sig.
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post #5 of 8
Are the two GTX470s reference cooling? If so, I think having an exhaust 120mm fan in the 5.25'' bays will not help much. It will help a little as the cards exhaust a small portion of its heat via the card's side rear top's slot openings.

I have another suggestion that you might try:-
Add an exhaust 120mm fan right above the expansion slots area of the case. See the blue rectangle in the 2 pics below for illustration. It should be easily fixed inside underneath the top case removable cover. Its function is to act as a pull fan for the heatsink of the 2 cards, much similar to the pull fan of a push-pull fans for a CPU cooler.

I think, this pull fan has the potential to lower (idle and load) temperature of the GTX470s by 5C.

Read about this concept here:-
http://www.overclock.net/air-cooling...e-part-ii.html

If 120mm fan has physical conflict with the DVI cable, 92mm or 80mm fan can still do the job. Or, use 20mm thick instead of the typical 25mm.


Edited by windfire - 7/20/11 at 8:51pm
post #6 of 8
Thread Starter 
Quote:
Originally Posted by windfire View Post
Are the two GTX470s reference cooling? If so, I think having an exhaust 120mm fan in the 5.25'' bays will not help much. It will help a little as the cards exhaust a small portion of its heat via the card's side rear top's slot openings.

I have another suggestion that you might try:-
Add an exhaust 120mm fan right above the expansion slots area of the case. See the blue rectangle in the 2 pics below for illustration. It should be easily fixed inside underneath the top case removable cover. Its function is to act as a pull fan for the heatsink of the 2 cards, much similar to the pull fan of a push-pull fans for a CPU cooler.

I think, this pull fan has the potential to lower (idle and load) temperature of the GTX470s by 5C.

Read about this concept here:-
http://www.overclock.net/air-cooling...e-part-ii.html

If 120mm fan has physical conflict with the DVI cable, 92mm or 80mm fan can still do the job. Or, use 20mm thick instead of the typical 25mm.
Interesting concept- hadnt even thought about that. I was also contemplating using an exhaust fan in front of the two cards where they sit in the FT02 through the plexi- I would get it machined properly to fit a 120mm fan. With the case being as nice as it is i would want to avoid any thing crude-

What do you think this would do? Do you think it would be effective?

Thanks for the responses guys.
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Old Timer
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post #7 of 8
If you could fit something in there like styrofoam or packing foam or soemthing to fit it tightly in there that would work better instead of it pulling some of the air from outside the case.
    
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post #8 of 8
Quote:
Originally Posted by SacredSoldier View Post
Interesting concept- hadnt even thought about that. I was also contemplating using an exhaust fan in front of the two cards where they sit in the FT02 through the plexi- I would get it machined properly to fit a 120mm fan. With the case being as nice as it is i would want to avoid any thing crude-

What do you think this would do? Do you think it would be effective?

Thanks for the responses guys.
If you wish to diy an fan opening on the plexi glass side panel right over the 2 GTX470s (see yellow rectangle in pic 1), I do not think it will help at all.

I mis-spoke in my previous post that adding an exhaust fan in the 5.25'' bay might help. Actually, it should not provide any help at all. I previously mixed the reference cooling of GTX480 with the GTX470 and thought there are slot openings (~1'' long) at the card's rear. But reference GTX470s do not have these openings (see pic 2) and so all of its exhaust is via the card's rear slot. If there are those openings (see orange circles in pic 3), then your side panel exhaust fan will help a little as (perhaps) 10-15% of the card's heat will escape through those little openings into the case.

Back to my suggestion of adding an exhaust fan as a pull fan for the cards. I think my previous diagrams might have misled you to think the fan is outside the case. It is not on top of the case mesh. Rather, it is inside and under the case mesh/grille. See pic 4 for an illustration. The grey line is the case mesh and the fan (blue rectangle) is under. So, you will not see the fan from the outside unless you have keen eyes.



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