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Corsair H150i PRO "Zero RPM" only working for stock fans.


Halorath
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I have 9 Corsair LL RGB Series fans, 6 of them being mounted on both sides of the H150i cooler.

6 of the fans (3 on case, 3 between case and H150i Radiator) are connected to Corsair Commander Pro via PWM connectors for fan speed control and I have them in a custom "Zero RPM" mode; 4 of them don't spin till the Radiator reaches 30 degrees and two others start spinning when the Graphics card reaches 50 degrees.

 

The issue I'm having is the 3 fans mounted on the back of the Radiator are connected directly to the Radiators PWM connectors and will not stop spinning in the default "Zero RPM" mode in iQue for the H150i even at 9 degrees the fans keep spinning at 600rpm and I cannot create a custom Zero RPM profile as it refuses to let me choose a setting below 600 RPM however I have no issue doing this with the same fans connected to the Commander Pro.

However when I have only the stock fans connected to the H150i they have no issues entering Zero RPM mode and stop spinning.

 

Since I want my case to not turn into a vacuum cleaner while surfing the net , watching YouTube, 4k videos, and doing low end gaming I fear I must sell 3 of my Corsair LL Series fans unless there is a solution.

Should also note since the latest Update to Corsair iQue the software fails everytime when checking for firmware updates for the H150i Pro, while in the previous update it worked fine.

On a side note my Corsair Vengeance RGB PRO 32GB (4x8GB) sticks haven't been able to pass a firmware check without failing and the RGB LEDs are slow to respond and lag behind sync RGB settings.

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You are correct; the Zero RPM mode only works with the stock fans. This is because the LL fans have a minimum speed with any PWM signal at all; the stock fans are designed to spin down when the PWM signal is below a specific threshold.

 

I highly doubt that the minimum speed of the LL fans would turn your system into a vacuum cleaner. That does seem a bit ... extreme.

 

There is no firmware update at all for the Pro series coolers. The same is true of the Vengeance Pro RGB RAM. What you are seeing is a very poorly worded message indicating that there are no updates found - at all. This has been reiterated on this forum many times. Hopefully they'll get a better message that is more indicative of the result shortly.

 

And yes, the Vengeance Pro RGB RAM does lag a bit; that's something that they are working on and hopefully we'll see that fix soon as well.

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I prefer all the fans at a stand still when not needed, means less dusting and maintains the very clean look of the case for a much longer period of time specially since this computer operates 24/7.

Is it not possible to use pwm splitters for the Commander Pro pwm connectors?

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I prefer all the fans at a stand still when not needed, means less dusting and maintains the very clean look of the case for a much longer period of time specially since this computer operates 24/7.

Is it not possible to use fans splitters for the Commander Pro pwm connectors?

 

It is possible, absolutely. Corsair support will tell you that it's technically not supported but it works ... I have several splitters on both of my CoPros. Each header is limited to 1A and the entire CoPro is limited to 4.5A for all fans (that's a limitation of the SATA power source, really).

 

I will say, however, to keep it to no more than two fans per header. We've seen folks with issues with 3 way splitters ... even when the total current for the fans is under the 1A limit.

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It is possible, absolutely. Corsair support will tell you that it's technically not supported but it works ... I have several splitters on both of my CoPros. Each header is limited to 1A and the entire CoPro is limited to 4.5A for all fans (that's a limitation of the SATA power source, really).

 

I will say, however, to keep it to no more than two fans per header. We've seen folks with issues with 3 way splitters ... even when the total current for the fans is under the 1A limit.

 

Cheers, I'll hunt down some splitters.

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