Question Orange light on MOBO please help

[Qwertix]

Hello I have a issue with my where there is a constant orange light on my motherboard and it appears that the light lights up at “audio”. Also this is a custom built computer and my first so sorry for my inexperience. I just finished building all the fans run : the psu, motherboard fan, the gpu fan and the 3 other fans. I haven’t bios my computer since the problem makes my monitor to not recognize my PC. Please help my specs are :
MOGO : Gigabyte B450M DS3H
GPU : Gigabyte GTX 1660
PSU : 600 BR
CPU : Ryzen 5 2600
I have put pictures just know I removed the GPU to better show the MOGO :

https://imgur.com/a/8FHZ1Bv

View: https://imgur.com/gallery/8FHZ1Bv

Please help...

 

[Dark Lord of Tech]

What's the issue , I have a similar light on an older ASUS board.

 

[Qwertix]

What's the issue , I have a similar light on an older ASUS board.

Well it doesn’t recognize my monitor so I can’t boot it up

 

[Dark Lord of Tech]

What connection to monitor: HDMI \ DP?

 

[Qwertix]

What connection to monitor: HDMI \ DP?

HDMI