Jump to content
Corsair Community

H115i PRO, fans not running at same speed, one running at max


Recommended Posts

The first fan is controllable and changes speed if I change settings for it, the second is running at max no matter what.
If I swap the actual fans nothing changes, the same fan ID is running at full speed, so it's not the fans.
Looks like a bug.

 

image.thumb.png.6ffb027a78bd4ac43910b7bbcb1d57ab.png

Link to comment
Share on other sites

That happens on Platinum/XT models every now and then.  Not common on the Pro series, so try the simple step first -- unplug the misbehaving fan from the pump connector and then reconnect.  Sometimes that's all it takes.  If it does not work, go to the device settings for the H115i Pro and do a forced firmware update (check for update -> None -> Force Update).  This usually resolves the issue on Plat/XT models.  

Link to comment
Share on other sites

3 hours ago, c-attack said:

That happens on Platinum/XT models every now and then.  Not common on the Pro series, so try the simple step first -- unplug the misbehaving fan from the pump connector and then reconnect.  Sometimes that's all it takes.  If it does not work, go to the device settings for the H115i Pro and do a forced firmware update (check for update -> None -> Force Update).  This usually resolves the issue on Plat/XT models.  

It's not the fan. Swapping the two fans makes no difference.
I also forced a firmware update and it made no difference.

Link to comment
Share on other sites

6 hours ago, mcw123 said:

Try to change on settings which kind of fans that you have. 

 

How?

Link to comment
Share on other sites

To clarify, if I swap the fans the #2 logical fan is still the one running at full speed.
So it's not a faulty fan. Something is either wrong with iCUE or the AIO fan control port is somehow broken.
I have seen a number of other users here pointing out similar issues so suspecting it's iCUE.

Link to comment
Share on other sites

It's not likely to be CUE related.  Your channel 2 fan is stuck at maximum while the #1 fan on the same curve responds.  That is not a fan profile corruption and this likely started at power on in the pre-OS state.  Most other users reporting this will be on the Platinum/XT model where it is a physical controller issue and one resolved by resetting the controller. That did not work for you and if the fan works on the other channel, that leaves the specific channel 2 fan controller as suspect.  I would contact Corsair Support.  In the meantime, you can use any standard PWM splitter from channel 1 to pair both fans.  No real need for independent fan control on the radiator.

  • Like 1
Link to comment
Share on other sites

The unit is no longer under warranty so if it's a hardware issue I'd have to keep on using a PWM splitter until the unit dies completely.
Seems all Corsair items I buy have a lifetime of 1-2 years ...

Link to comment
Share on other sites

  • Administrators
6 minutes ago, Sineira said:

The unit is no longer under warranty so if it's a hardware issue I'd have to keep on using a PWM splitter until the unit dies completely.
Seems all Corsair items I buy have a lifetime of 1-2 years ...

Just an FYI, if it's a new cooler that you purchased from a retailer, it should have a 5 year warranty.

  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...