AIO cooler radiator in push/pull config - fan RPM

Pailong1 · Mar 31, 2017

Hi all,

I have recently built a new computer and bought the Corsair H115i AIO cooler for my i7700k.

I placed the radiator at the top of my computer to blow air out, in a push/pull config. I have 2 Corsair ML140mm fans pushing whilst the 2 corsair radiator fans are on top pulling.

The Corsair ML140mm fans in push are usually running really quiet, around 280 RPM. If the CPU heats up, they get to around 500-600 RPM.
When I have the H115i in quiet mode, the 2 fans on top in pull are running around 840 RPM. If the H115i is running in balanced mode, the 2 pull fans are running at around 1200-1300 RPM.

Is there a problem running the push and the pull fans with such difference in RPM?

grimfox · Mar 31, 2017

I don't think it'll cause a problem. I run a H80i in push pull. I usually have the push running at a higher RPM because it's harder to hear from outside the case. The 115i should be more than capable with only push or pull though. I also have a 110i on a seperate system with only two fans in push. temps with F@H running 100% are about 50C on a 6600k@4.4G

Pailong1 · Mar 31, 2017

Yeah I think I should have just used the Corsair ML140 fans instead of both push/pull. Would have been better if I just mounted the ML140 fans in a pull configuration, they run much quieter than the stock ones that come with the H115i and cleaning would have been easier in just pull config - and I think you're right - think the H115i is more than capable with only push or pull. Have to say though, the ML140 fans are quite a tight fit on the H115i radiator, the rubber on the ML140 makes the fan bulky.

The main thing I was concerned with was the difference in RPM between the push fans and the pull fans.

Anyone else have any thoughts on this?

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AIO cooler radiator in push/pull config - fan RPM

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