Intake Exhaust Fans

pelmic93 · Jun 19, 2018

I currently have three front fans for intake, a Corsair H75 Push/Pull in the back for exhaust, and two exhaust fans at the top.

Would you consider this to be good airflow? Or would you consider switching it up? I read in a few places that some say it's a good idea to have the water cool push/pull being used as intake rather than exhaust and only having the top fans be exhaust.

Any thoughts?

CountMike · Jun 20, 2018

That setup is fine. Front radiator (push or pull)only if absolutely necessary because of case space constraints.

pelmic93 · Jun 20, 2018

I should've put this in initially; my CPU is a 7700k clocked at 4.5; when idle it sits around 35-40C and when under load it hovers around 60-70C. I'm not entirely positive; but would those temperatures be normal with that fan setup?

Occasionally one or two cores will hit 80C; but like a child touching a hot stove, it does it once then never again (nor will it ever go beyond 80C)

CountMike · Jun 20, 2018

That's just fine for that setup but CPU temperatures are not only ones to be concerned about. VRM and Chipset also need good cooling so having a lot of air f going thru the case is important as well as to be in the air stream as much as possible.

pelmic93 · Jun 20, 2018

Yeah, the cable management is well done so there's not a lot (if any) obstruction of air flow coming in and going out.

But you say that load temps of 60-70C is normal with the water cooler? It's a Corsair H75 and I was considering investing in a dual radiator rather than a single, though it may not make much of a difference. Trying to do some research on it.

CountMike · Jun 20, 2018

If those temps are absolute maximums under load, they are fine.

pelmic93 · Jun 20, 2018

That's good to know. I do appreciate your answers.

I would assume that if it reaches 80+ then I probably need to turn the voltage/clock speed down? I feel like with water cooling it shouldn't be hitting anything above 80C

CountMike · Jun 20, 2018

There's water cooling and there's water cooling not all are same. For a single radiator it's doing good, Just make sure that pump and fans are working full speed when it reaches about 70c.

pelmic93 · Jun 20, 2018

CountMike :

"There's water cooling and there's water cooling not all are same"

Can you elaborate on that?

CountMike · Jun 20, 2018

Well, there are relatively small ones like that single radiator with 120MM fan(s). One like my CM Nepton 140XL which has double thickness radiator with 140mm fans. Than there are ones with radiators that take 2 fans (120 or 140mm) side by side. Than some with 3 etc. All have smaller or larger cooling blocks and pumps to match.
That one has cooling ability of a large air cooler.

pelmic93 · Jun 20, 2018

CountMike :

I have a single radiator with fans on both sides but it's set as exhaust. Would it be better to set the fans as intake?

CountMike · Jun 20, 2018

No, it's fine like that.

pelmic93 · Jun 20, 2018

CountMike :

Would you recommend static RPM or just letting the fans adapt based on rising/falling temps?

CountMike · Jun 20, 2018

Let it be regulated by CPU temperature so it doesn't make noise all the time.

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