ROG LED logo on motherboard

[vil-2]

Hello
My motherboard (B450F gaming) has a ROG logo on the rear side, which is illuminated by some LEDs.
I have recently acquired a new PC case with a glass panel and I noticed that when the PC is off, this LED turns red and I can't turn it off. I've checked Asus Armory crate (which i use to set the color of this LED to yellow static when the PC is on), and I've checked the BIOS (it has an option for ROG logo, but all it does is to turn off every LED, PC powered or not) but it didn't work either.
Have you got an idea? this is very frustrating because this big red light is clearly visible when I'm watching movies for instance.
Thanks,

[vil-2]

Ok After some research, I realized that ErP was turned off for S4 S5, I re enabled it and the LEDs are now off when the power is off.