PSU Fan to take air from the case and exhaust out the back to reduce temps. Does this disrupt airflow of my case.

kosanovskiy

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Hello,

So I have a question on how to go about with my PSU and if I can use it to further reduce the temps in my Corsair 300r Windowed Case. Reason I'm doing this is because the 300r is one of the smallest ATX Mid Tower cases and I have lots of components in there. So I thought since I have a good durable PSU (EVGA SuperNOVA 1000PS 80+ Platinum) I could use it to help cool the my SLI 980ti's that have the custom EVGA ACX 2.0+ coolers more.

Keep in mind my case does have a mesh at the bottom to provide me a way to mount the fan downwards to supply it with fresh air so that is always an option but I want to try it with fan up to see if I can further remove hot air from the case that is dispensed by the custom cooler GPU's.

Here is my parts list:

i7-4790k @4.7Ghz
Corsair h100i GTX CPU Cooler
16Gb DDR3 2133 Cas-9 G.Skill RAM
MSI OC M-Power z97 motherboard
2x EVGA ACX 2.0+ 980ti (in SLI) each clocked at +250/+500 and no voltage increase
6x 500Gb SSD's in Raid 1
1x 2T Seagate HDD
EVGA SuperNOVA 1000PS 80+ Platinum PSU
Corsair 300r Windowed Case

Case Fans:

Front Intake: 2x Noctua NF-p14 FLX at 1200rpm
Side Panel Intake (to supply air to the GPU's): 2x Noctua NF-p14 FLX at 900rpm
Top radiator exhaust: 2x Noctua NF-p12 PWM at 1300rpm
Rear exhaust: 1x Corsair 120SP

The additional (and the one I have a question about):
Bottom/PSU exhaust: EVGA SuperNOVA 1000PS 80+ Platinum PSU in eco mode to take the hot air away from the bottom GPU.

To draw this out I took a random image of the case online with SLI and added air flow arrows to it. THIS IS NOT MY BUILD, JUST A RANDOM IMAGE. I'm wondering if I should really use the PSU as an exhaust to help remove hot air from the case and whether or not this new bottom rear exhaust really is beneficial at all since I know there is a possibility that it could be disrupting the air flow. Anyone deal with a similar situation? Or have any advice on whether or not I should still orient it as an exhaust. If I had reference cooler GPU's I would have went fan down but since custom coolers sent air into the case I wan't to at least help move it out faster, as I'm sure the PSU can take it no issue (especially since when I was doing my all time max benchmarks the kill-a-watt meter gave me 880W peak usage at max OC which was at CPU 4.9 and GPU's at +310/+575). Thank you.

Here is the air flow right now.

E6eMUET.jpg


 

kosanovskiy

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Is there no benefit to keeping it fan up to help remove air then? Or does it not help with the air removal at all? My case is a bit crammed and I'm a concealed silence freak that's why I was looking for other options.
 

USAFRet

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PSU fan sucking air from the outside. Let the PSU cool itself, and let the rest of the case cooling situation cool the case and components.

Further question:
"6x 500Gb SSD's in Raid 1"
Why on earth would you do this? What problem is that trying to solve?
 

kosanovskiy

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Would doing this increase the overall temperature in the case?

I'm a computational biologist so always have something up and running in the background. And when dealing with complex protein structures that computer has to sort having fast drives helps. I would have went with intel PCIe but had no more slots left :( and I like small and quiet cases. (i know it's stupid but that's just me). I'll maybe go full tower on my next build.
 

kosanovskiy

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I pretty much used this when I was running SLI 970's but I had reference cards back then. But I'll try it with custom coolers, I just know custom ones aren't as good for SLI configurations and any possible heat worries me as that might cause the cards to throttle. Thanks. Also got any advice on how to accurately calculate the temp inside the case? I know Real temp and MSI afterburner tell the temp of components, and the msi genie tells the mobo but nothing about the general case temp.
 

USAFRet

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Given proper cooling solution for the rest of the case, no, it will not increase the inside temp.

For the other issue/question:
Yes, fast drives are great. But 6 x SSD in RAID 1 is almost certainly slower than a single SSD.
And RAID 1, with those multiple 500GB drives, equals a 500GB drive.

Again, what theoretical problem is this RAID 1 solution trying to solve?
You're aware of what the different RAID levels do, right?
 

kosanovskiy

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Predict proper protein secondary structure bends and testing them if the model created is "theoretically" compatible with the real deal that would be made on the lab test bench.

Yeah Raid 1 is same/slower write as raid 0. But when I made this I didn't know how to do Raid 10 (or even about it) so I went with the Raid 1 because of the some safety/data duplication while having a slight boost in performance. I'll get around to re doing it to Raid 10 sometime soon but just too busy right now.
 

USAFRet

Titan
Moderator
Yes, I understand the computational thing your machine is trying to work on.
But the question related to what the RAID 1 does, vs individual drives and a proper backup.

But whatever...if you already have it built and running, rock on.
But please make and use some sort of actual backup plan.
 

kosanovskiy

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Yeah pretty much my mentality. I have external drives for back up or very important stuff just in case. But I realize how wasteful it is to do raid with 6 drives hahah you ain't the first to tell me and not the last either until I rebuild and fix it.
 

kosanovskiy

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Yeah once I remake this I'll either make it Raid5 or Raid10. Depending on if I will continue running the same project or not. Thanks for the advice.