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Curious as to why my fan setup is keeping my computer cooler.

I'm using:
Enthoo Pro Case
Asus M5A99FX Evo R2.0
8350 Black (no manual overclocK) 212 Evo w/1 pushing to the back exhaust
MSI r9 390
200 110 CFM intake in front
140 81 CFM exhaust in back
120 76 CFM intake on TOP

My question - When i have the 120 INTAKING my temps in my case are 5-7c COOLER than if i have it exhausting, but everything I read tells me to have tops exhausting. Wondering if anyone knows why
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More about curious fan setup keeping computer cooler
  1. Dizturb3dwun said:
    I'm using:
    Enthoo Pro Case
    Asus M5A99FX Evo R2.0
    8350 Black (no manual overclocK) 212 Evo w/1 pushing to the back exhaust
    MSI r9 390
    200 110 CFM intake in front
    140 81 CFM exhaust in back
    120 76 CFM intake on TOP

    My question - When i have the 120 INTAKING my temps in my case are 5-7c COOLER than if i have it exhausting, but everything I read tells me to have tops exhausting. Wondering if anyone knows why


    That temperature is measured in just one point on the motherboard. It's possible that the intaking config favours airflow on that point. Honestly though, i would skip the top fan altogether. I've never felt the need for more than front in and back exhaust. Btw, what are your temps without it?
  2. temps without the top fan are the same as with an exhaust fan - 54c-58c with netlfix on one monitor and WoW on high on the other. With a top intake it stays at 49-50. It hit 51 once for about half a a second.
  3. Dizturb3dwun said:
    temps without the top fan are the same as with an exhaust fan - 54c-58c with netlfix on one monitor and WoW on high on the other. With a top intake it stays at 49-50. It hit 51 once for about half a a second.


    Wooow, wait a sec, mate. 58c is in no way an ok temp for the MB. In that case just put them in witchever config lowers it and crank up those fans. Try to keep it under 45, ideally. If not, 50 max, but that't a bit much for my taste.
  4. not the actual motherboard temp , sorry, its the CPU TIN, the motherboard has never gone over 40c
  5. Oh, that's another story :))
    Your answer is simple: while intaking the top fan pushes cold air from the outside straight to the fan on the cpu cooler.
    But you should not keep it that way, as your cpu temps are not problematic, and a better airflow throghout your case is preferrable to just lower cpu temps.
  6. The reason I'm keeping it like this right now is because when that CPUTIN gets to 55+ the fan starts to REALLY pick up.
  7. Best answer
    Dizturb3dwun said:
    The reason I'm keeping it like this right now is because when that CPUTIN gets to 55+ the fan starts to REALLY pick up.


    It's ok either way. You could alternatively set the CPU fan in the bios on silent mode. Hitting 55C is not necesarily a reason for the 212 evo to go crazy. It should actually allow the cpu to go to 70C in full load a stabilize there.
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