[SOLVED] I updated platform keys and now monitor shows no signal ?

[JoHnOvRkiLL]

I have a Gigabyte B450m ds3h. To enable secure boot i updated the platform keys to default. But now my Cpu fan spins and stops repeatedly. No signal on monitor. No keyboard light.

Specs
Ryzen 3 3100
Gskill 8gb ddr4 ram
Amd rx5500xt 4gb GPU
Gigabyte b450m ds3h mobo

 

[Ralston18]

This motherboard?

https://download.gigabyte.com/FileL...e_1101.pdf?v=71eb64ad61e14ab5634291a6b519794a

How did you update the platform keys to default?

https://download.gigabyte.com/FileList/Manual/server_manual_r121-x30_bios_e_1.0.pdf