Hmm I also have 08 and everything is running but nothing is red. If everything works ignore

Yes, if it bothers you just change the display in the BIOS. I have set it to Temp. As I also have this code and I was told the same thing.

I have A0,
Earlier I had error 08 when my sound card somehow didn't work. I set up the system, updated all the drivers, restarted the PC and it was gone, or A0.

According to aorus support, this is the code D8 and in windows it means nothing, so it can be ignored. What you could try because of the vga led is to change the pcie ver. in the bios from Auto to 5.0 or 4.0, depending on what your gpu can do.