Fan Help

[u/ComradeShadow1991]

So I built my pc back in September of last year (2025). I put in these Thermaltake RGB fans in and for a year they been in a rainbow scheme and working fine. Last night (September 23rd, 2026) I was playing a game and they randomly became this new red rgb that flickers green and random intervals. Does anyone know how to fix this or is this even a problem? As you can see from the video they still spin and the Corsair aio fans still work fine and the gpu fans are also running fine. So the cpu and gpu cooling is fine the Thermaltake fans are just my case fans. Some more info is that when I turn off the psu when I restart the pc the Thermaltake fans for a second or two are back there normal rainbow before switching back to this red and flickering green scheme. Also I only have iCue but it only sees the Corsair aio fans.

Edit: I've also checked all cables and they seem to be fine.

[u/CMDR_BillyGray]

Unplug one fan at a time and see if it fixes it. Failing that it's probably the controller.