PC Won't Boot

[Supersonic Saint]

https://imgur.com/a/OLuXkUZ
https://imgur.com/a/ePc08ZT
My friend is building a PC using parts from another friend. Everything is connected but when you press power the motherboard lights up in the top left in red but nothing actually starts. It don't think it's the debug light so no idea what's the issue. The BIOS should be fine as it was updated and working with the 3600x on the other PC. Please help.

MSI B450 Gaming Pro Carbon
Ryzen 5 3600x
Gigabyte 1070ti
Stock cooler

 

[Alex h]

Is the ram in a2 and b2 slots

 

[Supersonic Saint]

The sticks are in slot 2 and 4.

 

[Dg834man]

Well that does look like you have a pci-e 6+2 plugged in to the 8 pin cpu

 

[Alex h]

Well that does look like you have a pci-e 6+2 plugged in to the 8 pin cpu

You could be right didn't notice that

 

[Supersonic Saint]

Well that does look like you have a pci-e 6+2 plugged in to the 8 pin cpu

That was it. Thank you.