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Is this Case-air-flow a good setup? - Page 2

post #11 of 14
Thread Starter 
Thanks guys. I finished my build last night, and got to test it out. I moved the top 120mm fan to the front, and I bought 4 CM 140mm fans to mount on top and bottom. I also reversed the side 180mm fan to exhaust. Basically, I set up my case just like the pictures in my OP. My CPU runs 3-4 degrees cooler with this case, and the best thing of all is that it is much more quiet than my Antec 902. I tested to airflow, and I found that I have a really good amount of positive pressure (tissue blow out of all openings of case). No more dust/hair in my case! I am really impressed with this case. My only complaints are:

1. There could have been more depth on the right side panel for cable management (a 1/4" would have been perfect).
2. If you mount your SSDs/HDs vertically (which you should for better airflow), the right-angle SATA cables will not fit (side panel can't be put back on).
3. Not the studiest of frames (not saying it has a thin frame, because it is 0.7mm SECC; just saying I wish it was a little more thicker).
Ol' Betsy
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Ol' Betsy
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post #12 of 14
Hes right. You want the top to exhaust. and the sides to be intakes blowing cool air onto the GPU(s). Otherwise everything else is correct.

The primary reason being you already have a CPU heatsink doing the work up top. Preferably pushing air to the rear exhaust. Remember heat rises.

You want to get the air out of your case.

I should add that I have the same card design except its a 6870. They cool far better with an intake on them rather than an exhaust. The 6850 fans blow UP.

Also side intake benefits more than just the GPU. But side intake is pointless unless you have a rear and top exhaust (and front intake).

EDIT: Does that PSU blow air up into the case?
Edited by jRader - 5/12/12 at 8:09pm
post #13 of 14

I looked at a couple of reviews. To my mind the main issues for you are two:

 

Rear position top fan? Or block it off?

 

GPU fans intake? Or exhaust?

 

First of all, I would recommend using the bottom 5.25 slot for your DVD, and leaving the upper three 5.25 slots for an intake fan. If the 5.25 bay is enclosed at the top, you are constrained to use a 120mm fan for an upper front intake. If the top of the 5.25 bay is unbounded you will have room for a 140mm upper front intake fan. See my sig for an example. I'm looking at one such right now.

 

Next I would recommend getting a Klein Nibbler, get rid of your rear grill and use no fan there. This will prevent any pressure buildup and make your rig quieter by getting rid of a fan.

 

If this were a tall ceiling case, I would tell you to populate both top positions. Other users have found it is superior to blocking off the rear top position.

 

If this were a low ceiling case, I would recommend blocking off the rear top position to make a wind tunnel effect: your upper front and forward top intake fans would blow air to your heatsink, improving its cooling function.

 

For those of you who recommend bottom-up cooling I remind you that that system was designed in the days when motherboard components needed just as much cooling as the cpu. That's gone now, but they do warm the air near them. Any air that passes motherboard components then goes to the cpu heatsink compromises the cpu's cooling. That is why bringing in unwarmed air cools better than -- shall we say it? -- "used" air.

 

But your case is an intermediate case. I can't tell if you could set up a wind tunnel effect or not. You will simply have to try it both ways.

 

Now for the gpu's. I have often wondered if a case that has an intake on the rear of the side panel and an exhaust further forward would be a rational response to a gpu such as yours.

 

GPU cooling is vexing. One way to do it would be to use a Silverstone Penetrator or one of the many vaned fans to blow air directly on your gpu's. Then remove all unused slot covers and consider using your nibbler to cut away the slot pillars to leave yourself with a gaping space for your the gpu exhaust to be swept out of your case.

 

But again, you will have to try it both ways.

 

Thank you for bringing this case to my attention. It is too bad a 221mm-wide case has little space behind the mb tray.

 

It looks like this case is made by the same contractor who builds the Cooler Master 690. Perhaps CM bought the mid-tower design, and Enermax bought the full-tower?

 

Overall, I believe you have good ideas. You will just have to test out the various possibilities.

 

Note: don't expect the D14 to go on sale. From what I can tell Noctual plans to exhaust their supplies of the non-PWM heatsinks and then go on to PWM fans. Expect to see a new center fan, since that is the main noise-maker. But they've already started selling an NF-P12 PWM, so it's not in for a redesign.

 

From their perspective, it's a great seller and one of the top coolers. Why withdraw it?


Edited by ehume - 5/24/12 at 8:19pm
alpha updated
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secundus
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alpha updated
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secundus
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post #14 of 14
Thread Starter 
Thank you for your EXPERT opinion, Hume. I should have just messaged you directly, as I have read several of your informative posts (particularly your test of 65 fans). Unfortunately, I've already made fan purchases and setup my rig. I love it so far (since it runs cooler and quieter with less dust). My next upgrade will be a Silver Arrow (or Noctua DH-14). My Dark Knight w/YL fan is not the loudest thing in my case (even running at 50%).

Cheers!
Ol' Betsy
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Ol' Betsy
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Hard DriveHard DriveOptical DriveCooling
Corsair Force GT 120GB Samsung Spinpoint 320GB LiteOn DVD Burner Noctua NH-D14 (Lapped) 
CoolingCoolingOSMonitor
4x140mm Cooler Master R4-S4S-10AK-GP (Case Fans) Stock Case Fans: 4x120mm, 1x180mm Windows 7 Home Premium 64bit Dell ST2210B 21.5" 1080P 
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