MSI B350 Tomahawk not POSTing

[4rzael]

Hello,

I am building a new computer (using only new parts), and having troubles having it to post.

 

I connected my CPU (Ryzen 5 2600), PSU, Motherboard (MSI B350 Tomahawk), one stick of RAM, and the GPU, and, when trying to boot, I don't get any video signal.

The motherboard debug LEDs (MSI EZ Debug) are lighting in the following pattern:
The CPU Led turns on, followed by the RAM one (something like a quarter of a second later), then after 1 second, both turn off. And then nothing.

The CPU and case fans are spinning, the GPU one starts moving but don't spin (the card has a 0dB mode, so that makes sense I suppose).

I made sure of discharging myself of any static electricity by touching the case before any manipulation, made sure that all of the power cables are connected (CPU, GPU, and MOBO), I tried to use the HDMI from the motherboard and from the GPU, tried to use the other RAM stick instead, tried to reset the CMOS (even though I don't have a jumper cable so I did it with a conductive screwdriver).

I don't know what to do now, does it come from a faulty component and if so, which one ? How to troubleshoot what is going on ?

[homeap5]

As in most cases, the best way is to remove all components, leave only CPU and one ram, without GPU and then turn on your computer.

Check cables too - in many cases MSI has really hard 24pin connector.

 

[GER_T4IGA]

Have you read this post?

Which Video Output are you plugged into?

 

Edit: IDK how one would but you need to verrify you have the correct BIOS version to get a Ryzen 2000 Series running on a B350. Someone help ith this, pls.

[homeap5]

Just now, GER_T4IGA said:

Which Video Output are you plugged into?

He already wrote that.

[4rzael]

I didn't check for the BIOS, and honestly have no idea how to do it without being able to POST.
I did everything else except for checking if the components work individually because I don't have another build to try them on.