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Question about fan curve for top exhaust fan

MGsubbie
By MGsubbie
in Cooling
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My setup : https://imgur.com/a/TGTor

 

My CPU cooler isn't covered, meaning the air can still move in another direction than directly through the radiators. So I'm a bit worried that the top exhaust fan might steal some air from the cooler, or make some not pass all the way through the cooler. So I set the fan curve on that one lower than my intake fans and rear exhaust fan, making sure it will always spin slower at any temperature. Does this really matter?

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I would just set it to the lowest rpm possible. It is an exhaust fan so that doenst really matter when u have more intake fans

|| CPU: I7 6950X @4.6 (1.35V) || Cooler: CUSTOM EK LOOP || Motherboard: ASUS RAMPAGE V EDITION 10

|| GPU: 2x Vega 64 Strix OC @1762 / 1100 MHz || Memory: 16GB G.Skill Royal RGB 3200 Mhz ||

HDD: Segate Barracuda 3TB || SSD: Samsung 970 Evo 512 GB || PSU: Corsair HX 1200 W || Case: Fractal Design Define R6 Gunmetal || Fans: Corsair HD120 (x4) / BeQuiet Silent Wings 3 (x4) || Monitor: ACER XF27HU ||

Second Monitor: BENQ RL2455HM || Mouse: Logitech G502 Pretus Core || Keyboard: Logitech G810 Orion Spectrum || Headphones: Sennheiser IE80 ||

 

                                                                                                          Buildlog expirience swapping to x99: 

 

 

 

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1 minute ago, joshuawi99 said:

I would just set it to the lowest rpm possible. It is an exhaust fan so that doenst really matter when u have more intake fans

My thought was that there are still enough openings in my case for the rest of the hot air to make it out.

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Yeah and with intake fans that pull in fresh air it should be no problem at all

|| CPU: I7 6950X @4.6 (1.35V) || Cooler: CUSTOM EK LOOP || Motherboard: ASUS RAMPAGE V EDITION 10

|| GPU: 2x Vega 64 Strix OC @1762 / 1100 MHz || Memory: 16GB G.Skill Royal RGB 3200 Mhz ||

HDD: Segate Barracuda 3TB || SSD: Samsung 970 Evo 512 GB || PSU: Corsair HX 1200 W || Case: Fractal Design Define R6 Gunmetal || Fans: Corsair HD120 (x4) / BeQuiet Silent Wings 3 (x4) || Monitor: ACER XF27HU ||

Second Monitor: BENQ RL2455HM || Mouse: Logitech G502 Pretus Core || Keyboard: Logitech G810 Orion Spectrum || Headphones: Sennheiser IE80 ||

 

                                                                                                          Buildlog expirience swapping to x99: 

 

 

 

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Considering how airflow works, you should have it using same curve with rear fan. Air doesn't move without something moving it. The fans in you case will work as follows:

  • Bottom and lower front will mainly feed GPU. Which then dumps hot air all over the case.
  • Top front delivers air directly to nearest working fan. Which is first on CPU cooler.
  • Top exhaust sucks air from cooler, but doesn't do it before 1st CPU fan. Not unless it spins significantly faster than 1st fan. Like 300rpm or something like that.
  • Middle CPU fan feeds air to rear fan.

^^^^ That's my post ^^^^
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vvvv Who's there? vvvv

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The top fan might not do much for cpu temps but it shouldn't worsen cooling. 

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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