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What can I do with my current rig? Don't know where to start....HAF 922

post #1 of 6
Thread Starter 
I really am not sure where to begin. Right now I have a 120mm on the left side, 200mm on front, 200mm on top, and I guess a 120mm on back.

I notice a slight sound coming from the top fan for a few minutes after turning it on. It works fine after a few minutes with no noise. The side fan kind of bothers me because there is a very large area where its just free space and I would like to create pressure on the inside to prevent dust from building up. Then the dust filter on the front fan is great but I don't know if I could incorporate a filter for a side fan.

I want to get a 200mm fan for the left side, maybe replace the top 200mm fan, Apparently I have access to a bottom fan I didn't even know about but there is only 3/4 inch gap so I don't know if it would do much good.

I ordered the PC from ecollege so it came with all the fans so I am not quite sure how tough it is to install them and if I have to worry about my power supply. Im familiar with the internals as I have changed out HDDs, DVD drives, GPUs, and RAM. Just uncharted waters here.

Thanks for any help. Much appreciated.

EDIT - Also, Im looking at my fan speeds on CPU Z since I am running Prime95

VALUE MIN MAX
SYSFANIN 164 164 164
CPUFANIN 16 9 28
AUXFANIN0 164 164 164
AUXFANIN1 127 3 255
AUXFANIN2 164 164 164

Is my Frio only going at 20 RPMs?
Edited by Cpt.Jeff - 2/8/13 at 2:21pm
The Migraine
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post #2 of 6
Here is a suggested fan set up that I learned about from the forums and incorporated into my rig with great results:

Front: Intake
Side: Exhaust
Top: Exhaust
Rear: Exhaust

As for the bottom fan, I would say not really a need for it in that case. You can always pop off some of the PCI covers on the back of the case to add some more flow also.

I know it seems like a lot of exhuast fans, but, when I had my side fan as an intake fan all it did was suck dust into my GPU, now with the exhaust set up I only need to dust my system once a month. I have a 200mm fan up front, and 120mm fans everywhere else in my HAF 912. Get bigger fans where you can as they pull more air with a lot less noise. Cooler Masters 200mm fans are great, that is what I am using in the front of my case and I am quite happy with it.

Have you thought about getting a fan controller? They are quite handy with an air cooling set up like yours.

I am not sure about those CPU-Z numbers, my CPU-Z does not even have fan speeds listed anywhere.

Cheers.
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post #3 of 6
Thread Starter 
I have a touchpad on the front top of my case where I can control up to 5 fans separately. Only 4 are active though since I guess the 5th is the 2nd optional 120mm.

I read about positive and negative pressure before and I really wouldn't mind having the air constantly moving inside preventing dust from even landing.
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post #4 of 6
Thread Starter 
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The Migraine
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post #5 of 6
Cpt. I have the exact case HAF 922. My current setup are as follow. Front 200mm/intake, Side 200mm/intake, Bottom 120mm/intake, Top 200mm/exhaust, Rear (2) 120mm/push pull w/ Antec Kuhler. I also put another 120mm HDD cage as intake to help cool my video card. Many have said that putting 2 120mm exhaust fans on top is much better than 1 200mm. I can say yes this is true as I have tried it. However, my temps went down 3-4 degree Celsius. I opted to keep a 200mm for the looks due to red LED. CPU idles at 37-38 degrees/67-69 at full load. GPU idles at 39-41 degrees.

Also as a suggestion. Download Hwinfo 32 or Hwinfo64 to monitor temps and fan speed. Hope this helps. Good Luck.
 
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Blowitoutourass 2
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post #6 of 6
I am typing from my phone so sorry I am not going into more detail, but what I would do...

Change your intake fans to some with a good amount of static pressure, at least 2.5mmH2O ideally 3.5mmH2O or more. This will ensuretthat the air is actually getting to the components before heating up to much, by allowing it to better overcome any obstruction.

For exhaust, I also believe that you need good amounts of static pressure due to the highly restrictive grills integrated into most cases. Of course, removing these grills with a Dremel or such and using the round wire grills in their place is the best thing to do IMHO.

For airflow, I like to think of the case as a tunnel, and the air needs to flow through smoothly without getting trapped or "confused" by other airflow. I prefer to have the front and bottom fans as intake, with the rear and top as exhaust. However, depending on the CPU cooler, you may benefit more from having the top as intake.
   
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