debug led code

I have a led code on my motherboard B450 M, when I turn it on: the VGA led starts, and then jumps to CPU led, and finally jumps to DRAM led. The BIOS is actually updated, I just installed a Ryzen 5 3400G CPU. I installed a GTX 1650 perfectly working. 2 RAM memory cards XPG DDR4 3200 MHz. I...