Problems with Corsair H115i with RPM

[c-attack]

Originally Posted by jinxxer

Got the H115i Platinum RGB. My temp sensor says 26.8c but still makes Fan #1 run at full RPM. Fan #2 working.

OK, double check to make sure your chosen fan profile is applied to both fans (ringed yellow). Use the + symbol to create a custom curve. Set it to a fixed RPM. Apply it to both fans. Do they respond?

[mal5305]

I'm in the same boat as jinxxer. Using custom curve isn't honored, but neither is fixed % applied to fans (H115i Pro, new, latest software and firmware, Win10 1809)

[jinxxer]

Originally Posted by c-attack

OK, double check to make sure your chosen fan profile is applied to both fans (ringed yellow). Use the + symbol to create a custom curve. Set it to a fixed RPM. Apply it to both fans. Do they respond?

Yep, tried all Fan profiles and custom with fixed RPM. Make sure I clicked the fans to apply. Fan #2 responds to all changes, Fan #1 is 100%.

Until I get response from support, im running both fans from Fan #2 with a PWM splitter.. Not optimal for readings.

[c-attack]

Originally Posted by jinxxer

Yep, tried all Fan profiles and custom with fixed RPM. Make sure I clicked the fans to apply. Fan #2 responds to all changes, Fan #1 is 100%.

Until I get response from support, im running both fans from Fan #2 with a PWM splitter.. Not optimal for readings.

Actually, that is a good solution and most AIO fan controllers only have one fan channel anyway. There is no good reason to run one radiator fan faster or slower than the other. Since the original post with all that weirdness on the coolant temp, several more of you have come forward with this issue, all on the Platinum series coolers. I don't know what this is, but it looks like some kind of bug. Did you just update to iCUE 3.11? Did this start after or before the 3.11 update?

*If it comes back you all just updated to 3.11, then certainly rolling back to 3.10 might bear some thought. However, I don't see a down side to the way you are running now, other than the annoyance of it not working as it should.

[jinxxer]

Originally Posted by c-attack

Actually, that is a good solution and most AIO fan controllers only have one fan channel anyway. There is no good reason to run one radiator fan faster or slower than the other. Since the original post with all that weirdness on the coolant temp, several more of you have come forward with this issue, all on the Platinum series coolers. I don't know what this is, but it looks like some kind of bug. Did you just update to iCUE 3.11? Did this start after or before the 3.11 update?

*If it comes back you all just updated to 3.11, then certainly rolling back to 3.10 might bear some thought. However, I don't see a down side to the way you are running now, other than the annoyance of it not working as it should.

Its a newly installed system. Installed 3.10 first, had the problem. Tried firmware update, still problem. Installed 3.11, still problem. No response from support yet and ive seen the other thread, glad im not alone in this..

[c-attack]

Ok, so problem on 3.10 & 3.11, plus we have one H115i Pro in the mix which is not going to be the same hardware or firmware.

Mal5305 - On your Pro, try using fixed RPM rather than %. Does it make a difference? I have the H115i Pro and it can be very slow to “stabilize” on fixed %. However, I don’t have and control problems on my custom curve. Is your Pro as wild as the others with one fan permanently maxed out?

For everyone, swap your fans on pump splitter so 1->2 and 2->1. Does the stuck fan stay on the same channel? Or move with the fan. Either way it’s usually a good idea to reconnect the fans when this happens.

[mudyman]

Good news everyone!

I found the problem for me. The issue seemed to be the connection between the fans and the Y-Splitter to the pump unit. They were a little bit lose but after squeezing the connection together both fans are working properly again. It turned out this connection is not very robust and can easily get lose when you work on the pc hardware like cable management (I changed the psu before).

Hope this makes it for you too guys!

[jinxxer]

So im back.

I did have a support ticket with Corsair. Downgraded firmware, but to no avail, didnt work, Full speed Fan #1. They advised me to do a RMA, but im not in the hassel to do so. Im running both with PWM splitter from FAN #2 port and hope new firmware might fix the issue. /D