VGA led on and no video output

[ezereyes]

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.

[Vishera]

I had a similar experience with my current build,

It turned out my new GPU is very picky about display cables,good thing i have dozens of HDMI cables.

With some cables i had no signal,with other cables the signal was lost in the middle of using the PC,

Until i found a cable that my GPU "liked",and it's fine ever since...

 

Probably most of my cheap cables are out of spec.

[ezereyes]

1 hour ago, Vishera said:

I had a similar experience with my current build,

It turned out my new GPU is very picky about display cables,good thing i have dozens of HDMI cables.

With some cables i had no signal,with other cables the signal was lost in the middle of using the PC,

Until i found a cable that my GPU "liked",and it's fine ever since...

 

Probably most of my cheap cables are out of spec.

Maybe it's the cable, but I tried the GPU in another PC with the same cable, and the PC booted without problems