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Old 11-17-2018, 02:40 PM
almeus almeus is offline
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Unhappy LEDs on LL120 fans no longer working after power surge

I have 3 LL120 fans connected to a lighting node pro/six way lighting hub. The LED controller, hub, 1 HDD and 1 SSD are all connected via the same SATA daisy chain cable to my power supply. The lights worked fine until a power surge (Yes I know I should get a surge protector). The lighting node is no longer visible in Corsair link, and the lights no longer come on, but the fans themselves still spin up fine. The fans are connected directly to various fan headers on the motherboard. The HDD and SSD work fine.

Here's what I've tried so far:

* putting the PSU SATA connector into a different slot on the power supply

* putting the fan LED headers into different ports on the lighting hub (from 1, 2, 3 to 4, 5, and 6)

* plugging the lighting hub into the channel 2 slot on the lighting node pro.

* unplugging and replugging the SATA connectors on the hub and lighting node

Is there anything I can do to get the fans working again, preferably at the lowest cost?


I fixed the issue. I pried open the lighting node pro and found a button that fixes the issue when pressed while nothing is connected to the LNP. There's actually an access hole on the case that you can insert a paper clip into to push the button, but I didn't notice until I put the case back together. I have zero electronics knowledge, but I think the button drains the capacitors which prevent it from fully turning on after suddenly losing power. A similar thing happens to motherboards after a power outage.

We lost power again a few days ago and repeating the process fixed the issue again.

Last edited by almeus; 12-16-2018 at 07:40 PM. Reason: added solution
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corsair link, fan, led, power surge, rgb

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