[SOLVED] H150i - middle fan not spinning on new build

TprSmid

Honorable
Jul 25, 2014
18
0
10,510
Hi all,

I recently built a new PC, and for the first time used an AIO cooler (the H150i Pro RGB) having previously used air coolers.

I've installed iCue and on the dashboard, it's showing the middle fan isn't running (0rpm). I had a look inside the case and it is indeed still whereas the other two (fans #1 and #3) are running at c.780-790 rpm.

I turned off the PC, checked all the connections and rebooted. The middle fan was spinning fine.

I've just checked iCue again about 10 minutes later though and second fan is back to 0rpm (see attached screenshot).

Any idea why this might be?

All three radiator fans are plugged into the splitter from the h150i cooler itself as per the instructions.

I have 3 x separate case fans which are plugged into my Fractal Design 7's Nexus fan hub (they are not PWM).

Thanks in advance for your help!

P.S. I need to sort my RAM out too - it's 3200Mhz but iCue says it's only running at 1596.5MHz - I thought I'd enabled XMP but will check in the BIOS.
 
Solution
If you have three idetical new fans on a rad, and one of them stalls at low speed while the others keep going, that could be one of three things.

  1. That one fan has a poor connection where it plugs into its connector from the pump unit. Try disconnecting and re-connecting a few times to see if that helps.
  2. All the fans may be operating just on the edge of stalling at a too-low speed setting, and one of them is just slightly more sensitive to this condition. In iCue, see if you can raise a little bit the minimum speed they will run at.
  3. If those don't work, contact Corsair Tech Support about a faulty fan that needs replacement while still under warranty.

Paperdoc

Polypheme
Ambassador
If you have three idetical new fans on a rad, and one of them stalls at low speed while the others keep going, that could be one of three things.

  1. That one fan has a poor connection where it plugs into its connector from the pump unit. Try disconnecting and re-connecting a few times to see if that helps.
  2. All the fans may be operating just on the edge of stalling at a too-low speed setting, and one of them is just slightly more sensitive to this condition. In iCue, see if you can raise a little bit the minimum speed they will run at.
  3. If those don't work, contact Corsair Tech Support about a faulty fan that needs replacement while still under warranty.
 
Solution