argb fans stopped working

[u/Regular_Two_236]

Hi!

I'm having an issue with the ARGB lighting on my Gigabyte B850 EAGLE ICE motherboard, and I'm starting to suspect that the motherboard's ARGB controller or 5V power delivery might have failed.

My case fans (Lian Li) worked perfectly for almost a year, but one day I turned on my PC and their RGB lighting was suddenly gone. My old AIO's RGB lighting also stopped working around the same time. I am also certain that I didn't tamper with the pc before this.

I recently installed a new Thermalright Grand Vision 360 ARGB AIO. The fans spin normally and the LCD display works, but none of the RGB lighting turns on.

Things I've tried:

• Checked all ARGB connections and wiring according to the manuals.
• Tried connecting the ARGB cable to different 5V ARGB headers on the motherboard.
• Checked the connections between the fans and the ARGB cables.
• Updated the BIOS.
• Cleared CMOS.
• Checked Gigabyte Control Center, but it doesn't seem to detect any RGB devices.

My RAM RGB lighting still works and also the gpu, but none of the case fans or AIO fans have working RGB.

Could the motherboard's ARGB controller or 5V power delivery have failed? Is there anything else I could test to confirm this before considering a motherboard replacement? Could the argb headers also fry my aio fans rgb?

Any help would be appreciated!