Question RGB case fans stopped working

[InveShard]

Hello there,
My RGB fans suddenly decided to stop lighting up, the fans are working without any problem also the LEDs on my ram sticks work perfectly fine because I was told that my PSU doesn't provide enough power for them? IDK. Its a 650w PSU so I dont think its whats causing this, I'd like to point out that sometimes my RGB fans turn back on while using the PC, for example I turn the PC on. Fans spin, no lighting. After 1hr of use or 2. They suddenly light up. but this does not happen all the time, only sometimes. Is there any issue? I watched some videos on youtube but I havent found any solution for this, I was told to set the fans to full speed in the BIOS and I did that but it doesnt work so i just set it back to standard mode.

 

[helpstar]

how did you connect the rgb? is a hub used?
cable connections are fine?
which fans are you using?
which motherboard are You using?
bios of motherboard up to date?

 

[InveShard]

how did you connect the rgb? is a hub used?
cable connections are fine?
which fans are you using?
which motherboard are You using?
bios of motherboard up to date?

I'm Sorry I'm kind of new to PC building and stuff, I dont understand what do you mean by a hub, all cables are fine I double checked, there's a button on top of my case that turns on/switch the RGB lights when they're on, thats how I used to turn them on/switch the lights, Also for the fans names I honestly dont know, they just came with my case pre-installed, there is 3 fans on the front case and one on the back, also the case I'm using is called Hybrok Shadow ARGB (glass), my motherboard is B450M pro R2.0 and the BIOS is up to date, It's the latest one

 

[JayGau]

Usually, those RGB cases come with a fan/rgb controller in which the fans have to be pluged in. It could be a box on the side panel or can be integrated to the front/top of the case and you also have to provide power to this controller (SATA power cable usually). Where are your fans plugged in? If they start or stop lighting up randomly that looks like a power issue with the rbg controller. Try to disconnect/reconnect it, and make sure the other end of the cable is well plugged into the PSU.