PC not bootingb

[Soviet]

Hello all,

i recently changed my motherboard to an ASUS ROG STRIX B550-F, my CPU to a ryzen 9 5900x and my power supply to a corsair RM850x connected all of my components up (RAM, GPU, CPU fan and all of the case wiring) and there is power to the mother board because the RGB is on but when i press the power button the CPU fan turns abit the RGB starts then it all stops apart from the motherboard.

can anyone help? 
 

thanks in advance

[W1ntrex]

Since the system is not booting, maybe there is the EZ Debug LED indicating something?

[Hinjima]

13 minutes ago, Soviet said:

Hello all,

i recently changed my motherboard to an ASUS ROG STRIX B550-F, my CPU to a ryzen 9 5900x and my power supply to a corsair RM850x connected all of my components up (RAM, GPU, CPU fan and all of the case wiring) and there is power to the mother board because the RGB is on but when i press the power button the CPU fan turns abit the RGB starts then it all stops apart from the motherboard.

can anyone help? 
 

thanks in advance

The Asus ROG STRIX B550-F GAMING ATX AM4 Motherboard supports the AMD Ryzen 9 5900X 3.7 GHz 12-Core Processor with BIOS version 1004. If the motherboard is using an older BIOS version, upgrading the BIOS will be necessary to support the CPU. Make sure you are using a BIOS version that supports the CPU.

[Soviet]

5 minutes ago, W1ntrex said:

Since the system is not booting, maybe there is the EZ Debug LED indicating something?

It isnt indicating anything 

[Soviet]

3 minutes ago, Hinjima said:

The Asus ROG STRIX B550-F GAMING ATX AM4 Motherboard supports the AMD Ryzen 9 5900X 3.7 GHz 12-Core Processor with BIOS version 1004. If the motherboard is using an older BIOS version, upgrading the BIOS will be necessary to support the CPU. Make sure you are using a BIOS version that supports the CPU.

How can i do that? Just use my older cpu until i can update the bios?

[Hinjima]

11 minutes ago, Soviet said:

How can i do that? Just use my older cpu until i can update the bios?

Yes exactly. You can put your old working CPU in the motherboard,but you do not need to do that with your ASUS board! You can go into your motherboard BIOS and check your current BIOS version before you start, you can let me know what version you are using and I can find out if you need to update or not.  Your motherboard support EZ FLASH BIOS update without needing a CPU!.  At the back of your motherboard you should see a USB port with a BIOS text on it.  Use a clean USB drive and follow the steps in this youtube video from ASUS, and you can update the BIOS. You can download the latest BIOS ( skip the beta one ) Here from this website. That would be version 2806.  If you have any questions before you start, let me know  
https://rog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-model/helpdesk_bios/

[Soviet]

21 minutes ago, Hinjima said:

Yes exactly. You can put your old working CPU in the motherboard,but you do not need to do that with your ASUS board! You can go into your motherboard BIOS and check your current BIOS version before you start, you can let me know what version you are using and I can find out if you need to update or not.  Your motherboard support EZ FLASH BIOS update without needing a CPU!.  At the back of your motherboard you should see a USB port with a BIOS text on it.  Use a clean USB drive and follow the steps in this youtube video from ASUS, and you can update the BIOS. You can download the latest BIOS ( skip the beta one ) Here from this website. That would be version 2806.  If you have any questions before you start, let me know  
https://rog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-model/helpdesk_bios/

My old CPU is doing the exact same