nuninho1980 Posted March 9, 2018 Share Posted March 9, 2018 Welcome to Corsair User Forums! :) Why is my new H115i Pro less fan speed than my old H115i? But therefore, CPU keeps more heat running new H115i Pro. Link to comment Share on other sites More sharing options...
c-attack Posted March 9, 2018 Share Posted March 9, 2018 Nearly all coolers of any size can dissipate more wattage than your CPU can produce. You do not need to run your fans at high speed to effectively cool the processor. The new Pro models are designed with an eye toward quiet performance and the "noisy fans" on the prior model were among the chief complaints. If you want to take your stock SP140L from the old H115i and use them on the new H115i Pro, go right ahead. You can also use any other 4 pin fan of your choosing and it will have little effect on the end result, but for once someone is giving you a nice quiet fan in the box, rather than a bare bones speed burner or a flimsy piece of plastic. Link to comment Share on other sites More sharing options...
nuninho1980 Posted March 9, 2018 Author Share Posted March 9, 2018 Nearly all coolers of any size can dissipate more wattage than your CPU can produce. You do not need to run your fans at high speed to effectively cool the processor. The new Pro models are designed with an eye toward quiet performance and the "noisy fans" on the prior model were among the chief complaints. If you want to take your stock SP140L from the old H115i and use them on the new H115i Pro, go right ahead. You can also use any other 4 pin fan of your choosing and it will have little effect on the end result, but for once someone is giving you a nice quiet fan in the box, rather than a bare bones speed burner or a flimsy piece of plastic.ok... I haven't 2 SP140L fans because RMA "stole" its after my old H115i sent. :( May high-speed fan harm pump (waterblock)? Link to comment Share on other sites More sharing options...
DevBiker Posted March 9, 2018 Share Posted March 9, 2018 No, a high speed fan won't harm the pump as long as it's under the require amperage (which it should be). That said, you won't see much, if any, improvement by putting faster fans on there. The ML fans that it ships with are quite good and cool extremely well. Furthermore, as fan speeds increase, you get diminishing returns on cooling performance. What temperatures (both CPU and Cooler) are you currently seeing? I find it hard to believe that your 4790K would push this cooler anywhere near its limit. Link to comment Share on other sites More sharing options...
nuninho1980 Posted March 9, 2018 Author Share Posted March 9, 2018 No, a high speed fan won't harm the pump as long as it's under the require amperage (which it should be). That said, you won't see much, if any, improvement by putting faster fans on there. The ML fans that it ships with are quite good and cool extremely well. Furthermore, as fan speeds increase, you get diminishing returns on cooling performance.Thank. :) But ML fans has up to only 1,200 RPM!?? What temperatures (both CPU and Cooler) are you currently seeing? I find it hard to believe that your 4790K would push this cooler anywhere near its limit.I don't plug H115i Pro yet until tomorrow, sorry. Or I'll buy 2 high-speed fans and later I'll plug this cooler. Link to comment Share on other sites More sharing options...
DevBiker Posted March 9, 2018 Share Posted March 9, 2018 First, remember that the fans only cool the liquid coolant. The fan speed has no direct relationship to the CPU temperature. It's the liquid that cools the CPU. As long as that's kept cool, there's no issue. On my overclocked 7700K, the coolant was kept to a max of 34C or so, even after an extended stress test using RealBench. The CPU temperatures were absolutely fine. The the included ML fans never even got to the full 100%. And yes, that's with the H115i Pro. You're looking at spec sheets and making assumptions about performance. If the fans didn't do the job, Corsair wouldn't have included them. And, like I said, diminishing returns as the fan speed ramps up, with significantly more noise. That 1200 RPM is plenty fast for excellent performance and it's super-quiet. Plus ... those ML fans, overall, perform very well, especially for radiators. Link to comment Share on other sites More sharing options...
nuninho1980 Posted March 10, 2018 Author Share Posted March 10, 2018 My room is 20 ºC. My i7-4790K is overclocked to 4.7GHz at 1.297V. I chose "Performance" profile for H115i Pro see image about Realbench v2.56 at 3 loops - https://imgur.com/v7XaGbM Is this good or very good? :) Link to comment Share on other sites More sharing options...
c-attack Posted March 10, 2018 Share Posted March 10, 2018 Max temps just above 60C? Looks good to me. You would be looking at a 1-2C reduction for high speed fans. You don't need it for this kind of stuff. People with extreme GPU set-up or who are forced to front mount their cooler may opt for high speeds fan, but this has more to do with total case airflow and not cooler specific performance or CPU temps. Link to comment Share on other sites More sharing options...
nuninho1980 Posted March 10, 2018 Author Share Posted March 10, 2018 Max temps just above 60C? Looks good to me. You would be looking at a 1-2C reduction for high speed fans. You don't need it for this kind of stuff. People with extreme GPU set-up or who are forced to front mount their cooler may opt for high speeds fan, but this has more to do with total case airflow and not cooler specific performance or CPU temps.2 ML fans with max 1200RPM are included by Corsair H115i Pro produt. Link to comment Share on other sites More sharing options...
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