These are my specs:
Processor: AMD Ryzen 5 1600
Graphics Card: MSI Armor RX 570 4gb
Motherboard: MSI b450m pro m2 v2
RAM: Hyperx 2x4gb 2666mhz
PSU: Gigabyte 700w 80+ bronze
SSD: Kingston A400 SSD - 240GB
I'm having troubles with the video output. If I turn on the PC with the HDMI connected to a TV from my RX570, I get no signal and the VGA led of my motherboard turns on.
If I turn on the PC without connecting the HDMI cable, the motherboard LEDs turns on and off, and the PC boots to windows normally. Then I can plug the HDMI cable and everything works properly (I did a lot of tests and benchmark an everything seems ok). If I try to start the BIOS pressing the del key without the HDMI connected (and then plugging in the cable), I get no signal.
I test an old GTX 960 with this motherboard, and it worked correctly, I can enter the BIOS. I even used it to flash the latest BIOS, but the problems with the RX570 persist.
Also, I test the RX570 in my old PC, and boots normally, even to the BIOS.
I tried clearing the cmos removing the motherboard battery, also booting with a single stick of ram, but it doesn't fix the issue.
