[SOLVED] New build no display

[DeanTH23]

I just built a PC for my brother but it won't give me display.

Specs:

1. Ryzen 5 3400G
2. B450 Aorus Pro (BIOS Version MUST be F40 or F41, it supposed to be Ryzen 3000 Ready.I bought it 1 year ago.)
3. Corsair Vengeance LPX 3000MHz 2x8GB
4. Corsair CV450
5. Kingston A400 250GB
6. No OS yet since i can't enter the BIOS.

Things i tried:

1. I checked all the cables.Everything seems fine.
2. Reset CMOS (Battery removal)
3. RAM Slots 1-3, 2-4 and all single slots.
4. I used both HDMI ports on the monitor just in case.

All LEDs work.
All fans connected to motherboard work.I have populated CPU_FAN1 so it's not an issue.
All Peripherals work properly.Keyboard is responsive.
Motherboard gave me red LEDs every time i started the system. CPU, DRAM, VGA, BOOT.
All of these leds light up in this order... It's like the system posts but I can't get display, but maybe is telling me that everything's not working properly?

Everything but the motherboard, is brand new.I used the motherboard before on a R5 2600X system and it gave me XMP instability, but it booted always no problem.

Any help is appreciated.
Thank you.

 

[rgd1101]

it supposed to be Ryzen 3000 Ready.I bought it 1 year ago

what do you mean supposed?

if it work on the 2600x. use it to update the bios

 

[DeanTH23]

what do you mean supposed?

if it work on the 2600x. use it to update the bios

I don't have the 2600X right now... Motherboard's box says that it's Ryzen 3000 Ready so it probably has the F40 Version which is the first BIOS to support the 3rd gen.

 

[General Kenobi]

I don't have the 2600X right now... Motherboard's box says that it's Ryzen 3000 Ready so it probably has the F40 Version which is the first BIOS to support the 3rd gen.

Recently i faced an issue similar to yours the processor had died, the only way to confirm it is to check your pc using another CPU.

 

[DeanTH23]

Solution:
I found a 2nd Gen Ryzen and all it needed was a BIOS Update.
I'm really disappointed with Gigabyte once again...When you put on the box that the motherboard supports 3rd gen, it means that you've updated the BIOS for the motherboard to ACTUALLY support 3rd gen and you don't ship it with the "stock" BIOS.