Sorry for the late reply.
Do you have Armoury Crate installed and fully updated?
Hi! I bought ROG Strix Fusion 700, and it stopped working.
When i plugged it into the USB just the red led turn on, no RGB, no sound. But Windows recognize it.
Someone knows how to fix it?
Armoury crate is full updated, and recognizes it too.
Some things to try...
Uninstall your ROG Strix Fusion 700 from device manager and reboot.
If this doesn't help, use the Armoury Crate uninstall tool to uninstall Armoury Crate, then install Armoury Crate version 126.96.36.199 and update to version 188.8.131.52.
In the link below, select your operating system and click "Show all" in blue, the Armoury Crate uninstall tool is the third download.