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Custom 5 Euro Fan Duct ...

post #1 of 16
Thread Starter 
Hi all !

I lately bought a new rig. The Problem is that my nv570 Twinfrozr III pushed all the hot air into the case, where it seems to get sucked up from my scythe mugen fan, to "cool" the CPU... Didn't like it at all. SO I decided to find a solution. Primary problem might be the twinfrozr III, however, since I'm lazy I decided to find some work around like a Fan-Duct for my CPU, after googling, gattering some ideas, here's the first result:
dsc00949i.jpg
From front looking into the tunnel.
dsc00952wk.jpg
From side.
dsc00953q.jpg
Same. As you can see, it's not well done at all, but it seems to work:
2011081920h12core1.png
BEFORE Installation
2011082000h59core1.png
AFTER Installation

Now, I need some good Ideas for a fan duct for the MSI NV 570 Twinfrozr III. I already bought some plexi glas biggrin.gif

Any suggestions?

EDIT: @admin, if this is the wrong section for this Thread, plz switch me to the right one. THX smile.gif
Edited by Virlidi - 8/19/11 at 5:57pm
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post #2 of 16
no its the right section, um you could just section off a square tunnel that connects to the front of the case and let the fans blow in to the pci slots, take out the covers and do that
   
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post #3 of 16
Seems quite a noticeable drop. I approve, +1

Also you could try to move the rear exhaust fan on the cooler to pull air and make a duct from this fan to the rear exhaust....if you can try it out.
Edited by Pentdragon - 8/20/11 at 12:16am
post #4 of 16
yeah i would remove the rear fan grill and no fan for best results
   
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post #5 of 16
+rep for a great idea and a great reuse of CD/DVD cases.

For one thing, you have proven the bankruptcy of the bottom-up cooling plan.

With that duct in place, do you need a duct for your gpu?

If you do, in the US we have hobby stores. Model train set builders often make their own buildings out of sheets of stiff plastic. You buy packages of several sheets at a time, often 150x250mm or so - some bigger, some smaller. You can make ducts out of those.

Edit: you can improve your airflow by removing slot pillars, like this:

Hotrod_Evo_2011-08-16_3_.png
Edited by ehume - 8/20/11 at 11:19am
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post #6 of 16
Thread Starter 
Thx for Rep:)

It might not be necessary to continue the duct game. But I'll find out how far I can go. I already own those plexi's, I just need some blueprint before I start the work, and that will take a while. I'll wait with removing the grills, because it's possible that I switch to the RAF tower, which has more space for modding and air cooling solutions imo.

Concerning the air duct for the GPU, I plan to have one who pushes cold air onto the GPU(the easy part) and one who sucks the hot air off (the hard part). This poses the problem here because the Twinfrozr layout pushes hot air into every fricking direction and that's the air stream I plan to completly seal off from the rest of the system. devil-smiley-019.gif
Edited by Virlidi - 8/20/11 at 1:30pm
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post #7 of 16
put a small fan on the back pci e spaces to pull the heat out and one at the front to push cool air in and a square plexi tube to tunnel it
post #8 of 16
Good work! (+rep)

Question: From the 1st pic, it seems that the aluminum portion of the duct is of the same diameter as the fan's. However, pic 2 seems to show that the transparent plastic part of the duct is of the same diameter of the fan and this part is larger in diameter than the aluminum part. Is this just a visual illusion? Are both parts having the same diameter as the fan's?

Several members (including me) here have done some work on the pull/extract end of a graphics card.
Here is my thread, for your reference:-
http://www.overclock.net/air-cooling/1053718-thermal-management-outside-case-part-ii.html
post #9 of 16
Thread Starter 
The Fan is 120mm. The aluminium Flex tube, has 100mm in diameter...so instead of building an adapter, I went the lazy guy's way and took the Cover of a CD cake box. The CD Cover is 125mm. The fixation between Flex tube and CD Cover was quickly done with a cutter and a glue gun to make it airtight. The "final" (beta? rolleyes.gif) Fan duct only touches the CPU Fan housing, it's not fixed with glue or anything else, so since the cover is 5mm larger in diameter than the cpu fan, there's like 2,5mm difference...but that's a minor Problem, since the air won't or can't escape from there, since it'll be sucked up from the CPU fan (at least that's what i guess, or hope cool.gif )
Btw: It might work better if you reduce the CD cover in lenght, to avoid spacing Problems with the ATX cables.

@Windfire: You're work seems very professional (+Rep) , and a bit more expensive concerning materials. I try to get a satisfying result out of the least money to invest. Actually the most expensive parts I bought was today, 2 noiseblocker Fans for 15 euro each. I'll see how far I come with my low investment smile.gif

PS: If you want more details just ask. I'll upload some more pics tomorrow where you can see the weak spots of this constrution.
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post #10 of 16
Regarding the 120mm fan/125mm CD cover/100mm Al tube combination:-

As the surface of the Aluminium is corrugated, it will generate friction so that the airflow is impeded somewhat, making the 'effective diameter' less than 100mm. This <100mm (being smaller than the 120mm) portion might hinder and reduce the airflow to the fan.

Surely the entire setup will enhance the air supply to the fan (vs without the duct) but this <100mm part will make the duct system not working at its 100% potential capacity. To compensate, I suggest adding an intake fan (if your budget allows) to the entrance end of the duct (ie right in front of the 5.25'' drive bays) to 'pressure' air down the tunnel.
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