[SOLVED] rx580 won't work with new build

Mar 4, 2021
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This is my first build. Every component is new except for the gpu. So here are the components:

Motherboard: MSI b550m Mortar wifi
CPU: ryzen 5600x
GPU: rx580 8gb (used)
RAM: 16gb 3200mhz Crucial Ballistix
PSU: EVGA 600W GD 80+ Gold
SSD: Kingston A400 480gb

The gpu has been used for minning for about three months. I tested the gpu on another computer before buying it and it worked fine, gave video signal and ran games with it. I built everything and when trying to boot the pc it won't give any signal through hdmi, it boots, all fans work, even the ones from the gpu but no video signal, mother board has the 'boot' led on.

I practically took apart all components and re-built it to check that everything was plugged in correctly.
I tested my pc with a gtx760 and with a gtx 1660 and both gave me video signal with hdmi and booted to the motherboard bios since it doesn't have windows installed.
I tested my rx580 on two different gaming pc and it worked fine on both (booted with video signal).
I tested the rx580 with my pc and with a working 750w psu and got the same result (no video signal) so I think the psu is not the problem.
I've done everything from the troubleshoot no signal post but nothing worked.
I've read other posts with problems similar to mine but can't find an appropiate solution for me.

Motherboard bios has been updated successfuly to run the 5600x, as I could verify by using the gtx760 and gtx1660.

This is my first pc build so I'm a little lost on what else to do. I even had it checked with a 'computer repair guy' and after testing the gpu with another pc and a gpu with my pc he came to the conclussion that the gpu is incompatible with my motherboard but from what I've read that's not the case. I was excited becasue after months I finally got my hands on a gpu that wasn't overpriced and could finally finish my build but it's been a few dissapointing weeks of trying to work this out. Your help will be much appreciated from the newbie.
 
Solution
U first have to setup the bios, so, you first have to connect the HDMI into the HDMI Port , setup the bios and click : Save and exit .


Now ur ready to run your system
U first have to setup the bios, so, you first have to connect the HDMI into the HDMI Port , setup the bios and click : Save and exit .


Now ur ready to run your system
 
Solution