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Corsair H115i Rpm


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Hello All!

I recently brought a H115i Corsair AIO, all is installed etcetera and working. However, as soon as I fire up a game, the Radiator fans are running at 4800-5000rpm constantly with cpu temps around 60-75 degrees.  
 

MSI centre fan curve, quiet mode has any effect on this. Icue software has no effect either. 

Other than noise it’s no real issue, but I’d like to get it dialled down. 
 

any advise champs?

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56 minutes ago, MrReckless said:

Radiator fans are running at 4800-5000rpm

Are you sure on this?  That’s twice the maximum fan speed. However, it is what most motherboards report as the raw pump speed from The tachometer wire connected to the MB. The actual pump speed is that value divided by 2. You’ll be able to see that in the CUE software. If you connected the radiator fans to the AIO’s fan controller then you do want the CUE software so you can control the fans and lighting. 
 

Which “H115i” do you have?  There are at least 5 variants (Pro, Platinum, XT, Elite, etc). 

Edited by c-attack
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So I’m issuing the H115 XT PRO 🙂
 

It says System Fan1 4800rpm 😂
 

I can grab a picture tomorrow and put it in here. But how I configured the connection is how it says in the manuals.  So I don’t believe I’ve done anything wrong exactly. 
 

icue I can’t adjust fan curve as I don’t have a commander pro. 
 

the radiator fans was connected too the cable coming from the pump mate yeah and that sata cable was connected to daisy chain 

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It’s showing you double the pump speed and this is normal. You cannot control fans or pump through the motherboard. That wire back to SysFan is a tach wire only. You need CUE 4 installed. I’ll post a screenshot of the control section shortly. 

Edited by c-attack
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The fans may indeed be quite loud, but that RPM in HWiNFO or anywhere else is only the raw pump speed. Also, be careful running HWiNFO at the same time as CUE if it is polling the H115i XT.  The two programs will lock each other up trying to access the device.  Loss of fan control is a definite possibility.  You can still use HWiNFO, but tell it not to monitor the H115i XT or any other internal Corsair device (PSU, Commander Pro/XT/Core, etc).

 

Some more recent tweaks to the Quiet/Balanced/Extreme curves have shifted the problem a bit.  The old curves were based on a 20-23C room temp, but most of us can't hold that inside the case in the warmer parts of the year or with a 3080 Ti in the general vicinity.  The new curves all hold relatively flat up until 30-32C coolant temp, but this is the value you are looking at to set your baseline.  If your idle/desktop coolant temp is 34C, then set that to your preferred minimum fan speed and go from there.  +1C to coolant temp = +1C to CPU temp, so there is no reason to get alarmed about a 2C shift.  It doesn't matter.  You need the cooler to keep strolling along with moderate speed and taking out the waste heat.

 

Go to the "Cooling" tab for the H115i XT in CUE.  I will show you a H150i Elite, but it is the same interface.  I don't see a reason to use the presets when you can make a custom copy of them that can be seen and edited for your own purposes.  To do that, go to the + symbol and it will create a new graph below. (red arrow)

 

1) Make sure the temp sensor is set to "H115i PRO XT TEMP".  This is the coolant temp and the native control variable.  CUE should tell you the current value next to it.  (yellow)

2) Click the concave shape tool 2 from the left.  This corresponds to the Quiet preset.  It will produce some temp/fan speed dots.  Now you can set it where needed (green).  You can let the fans sits around 500-600 for you idle.  Most 140s start to sound a bit loud past 1000 rpm, but that is also a good target speed for when under load.  You'll have to see where that is for your use, but +4-6C over the idle temp is probably about right.  So if your current baseline is 32C,. set 38C to 1000 rpm.  You will have extra dots.  Set the last one to maximum at around 50C.  That temp should be out of reach but will provide you with a clear audible warning if you drift into that zone.  Some users with big GPUs and small cases will need to tweak further as they heat up the entire case into the 45-50C zone.  

3) There are no fans shown above in the screen shot as I jacked this AIO into the back to show.  Your fans will appear above and you will need to change their fan profile from "Quiet" to "Custom 1" or whatever you rename that fan curve.  

 

 

Screenshot (230).jpg

Edited by c-attack
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Damnnnn you seriously know your stuff HOLY!

so I don’t even need commander pro for this!?

ill give it a whirl tomorrow and get back to you! Random and apologise if not allowed… you got tech discord server or anything?

thanks again for the help. Will ping back tomorrow champ 🤝👊

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No Commander needed for the XT.  It has it's own fan controller tucked in there for two fans.  In the meantime, it will run from a fan curve saved to the device from the factory.  Not sure if it is currently loud because the case/environment is warm or HWiNFO conflict, but there are ways to sort both.  Once you set up your new curve, it will automatically save to the device and run this all the time, software running or not.  

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