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Old 07-23-2019, 01:37 AM
dills dills is offline
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Question 3 Out Of 9 Fans Not Lighting Up With Commander Pro

I have 9 LL120 fans (three 3x packs), 3 of those being attached to the radiator for my H150i Pro. I also have 2 RGB Fan LED Hubs and a Commander Pro. The 6 fans that aren't attached to the AIO are all plugged into the same RGB Hub, and the 3 AIO fans are plugged into the other RGB Hub, with both Hubs being plugged into the Commander Pro. The problem is that the hub with the 6 fans works perfectly fine and lights up while the hub with the 3 AIO fans doesn't. The fans still run, just with no RGB lighting.

I did notice that the 2 cables connecting the hubs to the CoPro were slightly different. They both look like 3-pin cables, but the cable for the working hub has 3 wires while the non-working cable only has 2, and one of the pins is sort of hollowed out. I found another cable that matches the non-working cable, but I can't find another cable that matches the working one.

I'm not sure if I need to get another cable somehow or if I'm just doing something wrong. Was my CoPro or fan packs supposed to come with an extra LED cable, or am I just not plugging in the fans properly?

Thank you in advance!
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Old 07-23-2019, 02:46 AM
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Originally Posted by dills View Post
I have 9 LL120 fans (three 3x packs), 3 of those being attached to the radiator for my H150i Pro. I also have 2 RGB Fan LED Hubs and a Commander Pro. The 6 fans that aren't attached to the AIO are all plugged into the same RGB Hub, and the 3 AIO fans are plugged into the other RGB Hub, with both Hubs being plugged into the Commander Pro. The problem is that the hub with the 6 fans works perfectly fine and lights up while the hub with the 3 AIO fans doesn't. The fans still run, just with no RGB lighting.

I did notice that the 2 cables connecting the hubs to the CoPro were slightly different. They both look like 3-pin cables, but the cable for the working hub has 3 wires while the non-working cable only has 2, and one of the pins is sort of hollowed out. I found another cable that matches the non-working cable, but I can't find another cable that matches the working one.

I'm not sure if I need to get another cable somehow or if I'm just doing something wrong. Was my CoPro or fan packs supposed to come with an extra LED cable, or am I just not plugging in the fans properly?

Thank you in advance!
Hi Bud

the 3 pin/2 core cable between the hubs and Commander Pro is the correct cable..

did you go into icue and add the fans to the corrects lighting channel and did you also apply effects to the LED's?

always worth the read.....

http://forum.corsair.com/v3/showthread.php?t=173880
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Old 07-23-2019, 02:53 AM
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Hi Bud

the 3 pin/2 core cable between the hubs and Commander Pro is the correct cable..

did you go into icue and add the fans to the corrects lighting channel and did you also apply effects to the LED's?

always worth the read.....

http://forum.corsair.com/v3/showthread.php?t=173880
Yeah I went into iCUE and added another lighting channel w/ the 3 fans but it didn't affect anything. The 3 fans attached to the AIO actually lit up when I swapped cables between the two hubs, but then the other 6 weren't lit, so I was assuming it was a problem with one of the cables since one is slightly different from the other.
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Old 07-23-2019, 02:57 AM
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did you also apply an effect to those 3 fans you added?

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Old 07-23-2019, 03:06 AM
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did you also apply an effect to those 3 fans you added?

Yeah, I tried adding the same effects that I have for the other 6 fans but none of the 3 are lighting up at all. The only time I could get those 3 to light up was when I swapped cables between the RGB hubs
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Old 07-23-2019, 03:30 AM
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Ok..

If you have confirmed that both RGB Fan LED Hubs work in one channel and neither work in the other channel.. and you are certain you have correct set up on the correct channels in iCUE and indeed applied effects to them. then its most likely that the Commander Pro is at fault.... time to open a Support ticket dude...
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commander pro, h150i pro, ll120 fans, rgb hub

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