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Rad fans stuck in 300's rpm


amacutay
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I have a Corsair H100i RGB Platinum Aio. I've had it for 6 months, running fine. Noticed today that my rad fans are stuck at 300 rpm (fan#1 317, fan#2 368) and they are not shifting at all. I've created fan profiles to max the rpm out too and applied and still nothing. I've unplugged and switched the fan plugs, I've uninstalled iCUE completely and reinstalled, I've switched SATA cables, still nothing.

 

Any ideas at all? I'm at a complete loss and about to just plug the AIO fans into the motherboard fan headers. Please help.

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I would force update the firmware at this point since you have already done the normal things. There were a series of Platinum/XT owners who had their fan controllers lock up a few months back.

 

CUE Settings -> Platinum AIO -> Check for update (it's up to date) -> Force update. The cooler should go offline during this process for the 3-5 seconds it takes to load the firmware.

 

There is always a small chance firmware updates do not go as planned. If you would rather wait for Corsair Support's response through the Ticket System, you can. Take the fans off the pump splitter and move the PWM cables to the MB in the interim so you can get fan control back.

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I actually attempted a firmware update and w/ the cpu fan shutting off my cpu temps just keep rising and rising until the system locks up before update even finishes.

 

I did however, just connect the rad fans into the mobo and set them to 1600 rpms in the Bios. I'll leave it like this until Corsair addresses the issue.

 

Apparently my friend is also experiencing the same issue as I am, weirdly enough. So must be on the software side?

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I don’t know what causes the condition to occur in the first place, but don’t sit back and wait for an iCUE update to fix this. If you quit the software and the fans don’t immediately unlock, then the problem is now on the cooler. I am concerned the cooler could not take the firmware flash and that is a reason enough for replacement. Contact Corsair Support.
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