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post #491 of 2110
Quote:
Originally Posted by Celoth View Post
A shame they didn't test this properly and actually removed the fan instead of just turning it off. The fan, when not spinning, is adding a ton of restriction to the airflow. Optimally they should have cut away the rear honeycomb grill as well, and done tests with and without it. I find these results inconclusive, sadly. On the upside, temps are bound to be better in a setup without the fan installed, compared to their numbers with the fan merely turned off.

For a setup like this to work optimally, we need no rear grill and no fan, just an open hole, and probably a positive pressure setup instead of their negative pressure system.
+1 I thought it was odd they left the rear fan on like that.

EDIT: Here's a couple pics of my latest attempts to improve airflow. Moved the top front TY-140 to the ODD bay, new fans in top front intake and in front of HDD cage and removed all the PCI slot covers in the back. Airflow has finally noticeably improved! I'll be content with this setup for awhile. Still would like to get the 650D but that can wait a little longer. Oh, and the only noise I hear now is the air moving through the fans. A very pleasant sound that blends into the ambient levels of my apartment.




Edited by solsamurai - 11/2/11 at 5:42pm
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post #492 of 2110
Looks good.
post #493 of 2110
Quote:
Originally Posted by Celoth View Post
Looks good.
Thanks! I can't afford even a cheap dremel otherwise that rear grill would be gone as well.
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post #494 of 2110
ehume- let me know about my setup...I know it's right for the most part just not sure about the side fan- should it be intake or exhaust. At the moment it is intake.

All fans are GT 15's and the rear exhaust is a Slim Sycthe.

Two front intakes, bottom mounted intake and side intake.
Two top exhaust and the slim rear exhaust.

Just not sure what would work best for the side fan since the card throws air out of it and in the case- perhaps exhaust would be better? Then again intake and fresh air prob sounds good as well.

post #495 of 2110
Thread Starter 
Quote:
Originally Posted by adridu59 View Post
Ehume, HardwareSecrets just published a review about rear case fans, interesting read.
Quote:
Originally Posted by Celoth View Post
A shame they didn't test this properly and actually removed the fan instead of just turning it off. The fan, when not spinning, is adding a ton of restriction to the airflow. Optimally they should have cut away the rear honeycomb grill as well, and done tests with and without it. I find these results inconclusive, sadly. On the upside, temps are bound to be better in a setup without the fan installed, compared to their numbers with the fan merely turned off.

For a setup like this to work optimally, we need no rear grill and no fan, just an open hole, and probably a positive pressure setup instead of their negative pressure system.
I was thinking the same thing. Actually, since I have felt the direct impact of the cpu heatsink with the grill removed, and remember not feeling the cpu heatsink output when the grill was present, I know that leaving the grill in place makes a big difference. That said, they have proven that if you leave the grill in place, a rear exhaust fan will improve your airflow. That is useful information, if noisy.

Quote:
Originally Posted by solsamurai View Post
+1 I thought it was odd they left the rear fan on like that.

EDIT: Here's a couple pics of my latest attempts to improve airflow. Moved the top front TY-140 to the ODD bay, new fans in top front intake and in front of HDD cage and removed all the PCI slot covers in the back. Airflow has finally noticeably improved! I'll be content with this setup for awhile. Still would like to get the 650D but that can wait a little longer. Oh, and the only noise I hear now is the air moving through the fans. A very pleasant sound that blends into the ambient levels of my apartment.



I love this.

Quote:
Originally Posted by Volkswagen View Post
ehume- let me know about my setup...I know it's right for the most part just not sure about the side fan- should it be intake or exhaust. At the moment it is intake.

All fans are GT 15's and the rear exhaust is a Slim Sycthe.

Two front intakes, bottom mounted intake and side intake.
Two top exhaust and the slim rear exhaust.

Just not sure what would work best for the side fan since the card throws air out of it and in the case- perhaps exhaust would be better? Then again intake and fresh air prob sounds good as well.

I think you need more intake if you're going to have a side exhaust fan. Not enough intake for your exhausts. But you should try your gpu temps with an intake fan and an exhaust fan.

I think your rads would be more efficient in intake than exhaust. If you remove your rear grill you would not need that relatively noisy, relatively inefficient 20mm-thick fan at the back.
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post #496 of 2110
I like the idea of having the back fan as an intake- will give it a try
post #497 of 2110
Quote:
Originally Posted by ehume View Post
I love this.
Thanks dood!
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post #498 of 2110
Hi ehume I just need some advise. I have a HAF932 case, I have 3 fans on the top that are really just sitting there on min pushing air OUT of case. Should I turn these into pushing into my case? It could be good for my air cooler? I see on the first page you have the top fans pushing air into the case... I think I might change this tonight -even cooler temps/better wind tunnel?

Edit: I changed my fans to push down in my case. Cranked them up to 2000rpm and played crysis2 for a while. I found the cpu temp to be 2-3c cooler, but my top gtx570 to be 2-3c hotter and my bottom gtx570 to be 2-3c cooler? -Its better for my CPU and I was crazy not to try it sooner, anyway nice case solsamurai!! & thanks ehume
Edited by Neo_Morpheus - 11/4/11 at 2:53am
post #499 of 2110
Thread Starter 
The HAF 932 ceiling is too high for a wind tunnel. Fill up that top space with fans . . . pushing down.
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post #500 of 2110
What do you mean by a "wind tunnel" ?
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