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Will I have enough air flow..

post #1 of 5
Thread Starter 
I'm transforming my main rig to be more silent and power efficient.
Heatsink on CPU is Thermalright True Spirit without a fan and I am planning on buying an Accelero S1+ for my HD7770 if the air flow described below is good enough:

Case will have three fans, and the case is inverted ATX (Lian Li PC-A05NB). PSU is isolated from case airflow.
1x Front exhaust/1x rear intake is Slip Stream 120mm PWM. And 1x top exhaust is X-Silent 140mm from Thermalright.
Front fan will always run ~500-900rpm depending on load.
Rear fan will be semi passive and will start spinning when CPU reaches X*C.
Top fan will be semi passive and will start spinning when GPU reaches Y*C.

E: Edited my thread through Tapatalk and it decided to cut off the end.. Fixed now..
E2: Made an awesomesauce airflow diagram using Paint.
371
Edited by lagittaja - 4/8/12 at 9:01am
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post #2 of 5
running reverse airflow you could probably pull off the TS being fanless. The gpu may be a concern, since I don't see where its airflow would come from. Maybe I'm missing it but I don't see a top fan placement on the AO5.
    
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post #3 of 5
Thread Starter 
I have a replacement top cover from lian li that has a 140mm fan slot.
And no I wouldn't want to reverse air flow since then the front fan would be pulling the air from the psu.
My psu is mounted fan facing down and I made a hole to the case floor for the psu to get fresh air, and then the psu pushes the air towards the front fascia.

And keep in mind I have a Pentium G620.. Before I took my 2500K out of the machine last week to ship it to the new owner, I did a shortish load temperature test. I reset my oc in the bios and booted the computer up without a fan on the True Spirit and rear fan was a Noctua P12 running 5volts. Loaded IntelBurnTest (with Win7SP1 and AVX version of IBT) and I saw load temperatures of 65*C on the hottest core after 20mins.
Oh and the voltage of my 2500K was 1.200v when it run 3.4Ghz.

And the air for the gpu would come from the rear fan and the slots on the back of the case (the expansion slots and above the expansion slots see those holes)
Edited by lagittaja - 4/8/12 at 9:14am
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post #4 of 5

Very smart to get the replacement top from Lian Li. Also good of them to offer it.

 

Get rid of all of your unused slot covers and your gpu will get loads of fresh air. The air coming from the cpu will find its way out, whether out the front or out the top.

 

I wouldn't want a case exhaust blowing out toward me, but tastes differ. Other than that, I like your rig. Again: good job on the top exhaust.

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post #5 of 5
Thread Starter 
Quote:
Originally Posted by ehume View Post

Very smart to get the replacement top from Lian Li. Also good of them to offer it.   Get rid of all of your unused slot covers and your gpu will get loads of fresh air. The air coming from the cpu will find its way out, whether out the front or out the top.   I wouldn't want a case exhaust blowing out toward me, but tastes differ. Other than that, I like your rig. Again: good job on the top exhaust.

Thankfully the front fascia directs the air so it doesn't come directly at me and also a fan spinning that slow doesn't move a buttload of air and isn't loud smile.gif
Yeah the top cover with fan slot perfected this case. Although a bit poor design, the fan is in position on the cover that a normal sized dvd/bluray drive blocks part of the fan, my samsung bluray drive overlaps like 2.5cm of the fan. Not that big issue but shouldn't have been too hard for the engineers to move the slot few centimetres towards the back of the case.

From Finland with Desire
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CPUMotherboardGraphicsRAM
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WD1001FALS Samsung 830 64GB Optiarc AD5280S Noctua NH-U12P 
CoolingCoolingCoolingOS
Arctic Cooling Accelero S1 Rev. 2 Scythe Slip Stream PWM Scythe Gentle Typhoon AP-14 Windows 7 Ultimate 64bit 
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