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PCI slot cooler?

post #1 of 11
Thread Starter 
I got some 6950 Twin Frozr II's in CF. I have an Antec Dual slot pci intake fan that keeps my lower card at about 68c on load, The upper card hovers at 83c on load. Is there a single slot pci cooler intake fan? Or should i do some ghetto mod and tape a 140mm fan to the back of the card? Thanks
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Valery
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post #2 of 11
Just have air blowing in from the side via the side panel fan. Dropps my temps by almost 10C
 
Gsvlip Dudyrm
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Gsvlip Dudyrm
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post #3 of 11
No matter what I do with my Fan configurations, Cased or Caseless I've almost never noticed a drop in temp, possibly may be because I just have good airflow to begin with.

I bought one awhile ago as I said I personally havne't noticed a difference ever in decrease in temp by adding moar fans.

Ugly thing but called an AzenX PCI slot cooler.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835114024

Has a dial on back exhausts quite a bit of air and pushes quite a bit.
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post #4 of 11
Thread Starter 
Ok, Thanks for the tips but those wont work. My case doesn't have a side fan area. And the pci slot cooler is an exhaust blower. I need an intake style. How about this. I am using a Lian Li k58w and I have the stock fans that came with it. A 140mm in the front as intake, I think i get maybe 30cfm, and its covered by 3 hard drives and a hard drive cage. I have 2x 140mm as exhaust on the top of the case. Same about 30cfm maybe less and a 120mm rear as exhaust, again another maybe on the 35-40cfm, range. So is that to crappy. I think I have 120mm scyht slipstream around here somewhere. Or should I get all new fans. This is my first try into internal exhaust cards that produce heat.
Should I instead do 1x 140mm intake on the top, for the cpu cooler, maybe 60cfm, a 120mm Ultra Kaze exhaust about 130cfm, and another 140mm 60cfm intake in the front?Im so lost.
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post #5 of 11
wait what... You want a intake PCI slot? As in it takes in the hotair that both your GPU's are throwing out and tossing it right back into the case to re-feed to the GPU??

I don't get it... You don't always need direct CFM on the cards, You want Fresh air, not recycled garbage.

Moving more Hot air around in the case faster from internal fans that aren't creating Negative nor Positive pressure has very little effect, if not being blowen into a heatsink.

Options I could see right now.

A. Punch a hole in the side of the case to add an intake, Or Bottom of the case. 120MM punch. Install fan.

B. Install more powerful intake fan.

C. Adding Exhaust PCI-E fans as linked, Moving hot air away from the card does 2 things, Creates Negative pressure forcing fresh air into the case from outside, and moves hot air away from the GPU.


__________

As I said you don't want to create some feedback loop of recycling your GPU's hot air with a PCI slot Intake.

I think I've also seen some 5.25 Bay Coolers.

If you have 2-3 5.25 bay's open you can mod a 80-120-140mm fan into it for intake.


I feel this thread if more suited for air cooling forum tho.
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post #6 of 11
Thread Starter 
Quote:
Originally Posted by Neokolzia;14324368 
wait what... You want a intake PCI slot? As in it takes in the hotair that both your GPU's are throwing out and tossing it right back into the case to re-feed to the GPU??

I don't get it... You don't always need direct CFM on the cards, You want Fresh air, not recycled garbage.

Moving more Hot air around in the case faster from internal fans that aren't creating Negative nor Positive pressure has very little effect, if not being blowen into a heatsink.

Options I could see right now.

A. Punch a hole in the side of the case to add an intake, Or Bottom of the case. 120MM punch. Install fan.

B. Install more powerful intake fan.

C. Adding Exhaust PCI-E fans as linked, Moving hot air away from the card does 2 things, Creates Negative pressure forcing fresh air into the case from outside, and moves hot air away from the GPU.


__________

As I said you don't want to create some feedback loop of recycling your GPU's hot air with a PCI slot Intake.

I think I've also seen some 5.25 Bay Coolers.

If you have 2-3 5.25 bay's open you can mod a 80-120-140mm fan into it for intake.


I feel this thread if more suited for air cooling forum tho.

How would it create a loop? there is no hot air coming out the back where the pci slots are. Also the way my room is set up there is positive airflow out the back that moves the hot air away. Im doing that with my lower card it is like 10-12c cooler.
Also, i think I did open this up in the wrong section, maybe a mod can move it
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Valery
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post #7 of 11
Set the fans to 100%?

I have trifire HD6950 they are stacked, and they never reach 70ºC with fans at 100%, can't see how your crossfire is worse than mine trifire.
post #8 of 11
because he's apparently recycling the air with 1 PCI-Slot intake fan that is forcing hot used air right back into the GPU's creating a negative feedback loop =\. Likely not the main contributor but definetly not helping.

Forcing hot air back into the case is extremely bad.
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post #9 of 11
Thread Starter 
Quote:
Originally Posted by Neokolzia;14335883 
because he's apparently recycling the air with 1 PCI-Slot intake fan that is forcing hot used air right back into the GPU's creating a negative feedback loop =\. Likely not the main contributor but definetly not helping.

Forcing hot air back into the case is extremely bad.

there is no hot air coming out the back of the cards, its internal exhaust. the air coming in from the pci slot is cool air, there is a rather large, 10,000 btu air conditioner pushing all the hot air away from the case. and the air going in is very cool, but my top card is not getting any. I will just redo my airflow, Some new fans wont hurt.
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Valery
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post #10 of 11
Every gpu I've owned, the hot air is forced out the back of your case/video cards (PCI slots). Therefore, what Neokoliza suggested is correct. The newegg link he provided may solve your problem (if it works as designed).
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