Kamoedesu Posted May 16, 2020 Share Posted May 16, 2020 (edited) I've had these Corsair LL120 and 140 fans for a bit over a week now, they worked perfectly fine up until now when I turned on my computer and all but one of the LL120's doesn't light up anymore. The fans are connected to a Phanteks fan hub to power the fans themselves, as well as to the Lighting Node Pro and appear in ICUE, but no RGB shows on the fans themselves. The single fan that DOES work is the fan plugged into slot number 1 on the Lighting Node Pro. Fans 2, 3, and 4 do not light up at all, though they do spin thanks to the Phanteks fan hub. The issue literally happened overnight, one day they were working fine, the next they weren't. Steps I've taken to fixing the issue include: Reinstalling ICUEPlugging the Lighting Node Pro into another SATA portPlugging individual fans into different ports in the Lighting Node Pro None of the above have fixed the issue. I'm unsure if the issue lies with the Lighting Node Pro or the fans themselves. EDIT: I fixed it, but the fix was very... oddly specific. The fans started to light up, but only after I plugged them into a different spot into the Lighting Node Pro, and the fans were PICKY about it. Fan 4 would ONLY light up in slot 1, fan 1 would light up in anything between 1 and 3, fan 2 only lit up in slot 4, and fan 3 would only light up in slot 2. None of the fans worked in slots 5 or 6, but possibly because I didn't set up the Lighting Node Pro to display 6 fans. I'm exceptionally confused, but happy the fans work now. I'm still open to suggestions or ideas on why this happened. If you need information, my system specs are as follows: CPU: Intel i7 9700K, stock clock speeds Cooling: Corsair H150i RGB with stock fans on the radiator; 3x Corsair LL120 and 1x Corsair LL140 as chassis fans. Mobo: Asus TUF Plus z370 RAM: Corsair Vengeance RGB Pro 3000MHz 8GB x2 GPU: Asus ROG Strix RTX 2070 PSU: Corsair RM850x Storage: Samsung 970 Evo Pro NVMe SSD 1TB Edited May 16, 2020 by Kamoedesu Link to comment Share on other sites More sharing options...
c-attack Posted May 17, 2020 Share Posted May 17, 2020 The fan lighting works in series, so if LED #3 on fan 2 goes out, the lights normally stop there. It seems probably there was an issue on fan #1 and through you switching it has landed at the end of the chain, freeing the others to work properly. Check and make sure all your LEDs are lit on the last fan. Link to comment Share on other sites More sharing options...
Kamoedesu Posted May 17, 2020 Author Share Posted May 17, 2020 The fan lighting works in series, so if LED #3 on fan 2 goes out, the lights normally stop there. It seems probably there was an issue on fan #1 and through you switching it has landed at the end of the chain, freeing the others to work properly. Check and make sure all your LEDs are lit on the last fan. All of the LED's do work on each fan, I went into ICUE and lit each LED manually one at a time, each one lit up in full Red, Green, and Blue. Link to comment Share on other sites More sharing options...
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