[SOLVED] "Check Signal Cable" after installing new Graphics Card (Nvidia to AMD)

[mosspit]

So I recently installed a new graphics card and I decided to test it out. However, the monitor only shows; "Check Signal Cable" with an "Analog" option in the bottom.

Here are some things you should know;
-Switching brands from Nvidia (GTX 1650) to AMD (RX 6600)
-I have not uninstalled the nvidia drivers beforehand because of the retailer telling me I don't need to.
-Currently using an HDMI connector. Tried connecting the HDMI cable to the GPU and MOBO, both not working.

Specs:
CPU - i3 10100F (no integrated graphics)
GPU - RX 6600 8gb
Motherboard - B460m-Pro4
PSU - CM MW550
RAM - Patriot Viper 16gb (single channel)
Monitor - Samsung SR24350 (only supports HDMI)

Thanks!

 

[SkyNetRising]

-Currently using an HDMI connector. Tried connecting the HDMI cable to the GPU and MOBO, both not working.

Put the old graphics card back.
Go into BIOS and enable CSM. Turn off secure boot.
Then change graphics cards.

Video output on motherboard will not work. There was no point in even trying that.

 

[mosspit]

Put the old graphics card back.
Go into BIOS and enable CSM. Turn off secure boot.
Then change graphics cards.

Video output on motherboard will not work. There was no point in even trying that.

well dang, it worked! no idea what enabling CSM did but I'm not complaining.

oh and, tysm man.