Help!!! Please Help!!! No display

[HeyitsAustin]

Help!!! 

I'm a beginner builder I built a Ryzen 5 3400g with Radeon graphics

 

 stock wraith cooler

 

ASRock b450 still legend motherboard

 

Samsung 980 SSD

 

Oloy 3000 MHz ram 2 * 8

 

EVGA 650 watt power supply

 

Unfortunately I don't have a monitor but I've tried it on two separate TVs and I have no signal no display I reseed my ram took it out put it back in I made sure my 24 pin connector was all the way in and the eight pin CPU connector I don't have a graphics card because it has onboard graphics with the 3400 g radio on Vega 11 graphics why do I not have a display I've tried adapters I did read something about a bios update but if I have no display how can I update my BIOS also I read about people putting an update on a flash drive stick and sticking it into the computer making sure there's no other documents on the flash drive and people have had success updating their BIOS with a flash drive with no display but I don't know how to do that I do have a flash drive and if I have to go to the library to use their computers instead something I should do I really need help with this one when I turn on the PC all the lights come on all the fans work but I have no display also there's no beeping coming from the motherboard no sounds at all I have tried to reset the motherboard to no success I need help here guys please

[VectorTech]

First off I would move your RAM to the 2nd and 4th slots away from your CPU, (like this- CPU [] [X] [] [X] )

 

Then report back and tell us what you got.

[HeyitsAustin]

Ok

1 hour ago, VectorTech said:

First off I would move your RAM to the 2nd and 4th slots away from your CPU, (like this- CPU [] [X] [] [X] )

 

Then report back and tell us what you got.

Okay so I already had them in two and four slots but what I did I turned the computer off I put just one and slot one tried it didn't work and I put one in slot one and two in slot 3 also didn't work then I tried one in slot 2 and 4 didn't work

[Nurhaal]

The ASrock B450 Steel Legend possibly supports your CPU type if BIOS version P2.30 is flashed. Maybe.

 

Some where around your board, near the BIOS chip, is going to be a sticker that Identifies your boards manufacturing lot and what BIOS it was flashed with at time of manufacture. 

 

The confusing part is that there are multiple versions or SKUs of that CPU. The Ryzen 5 3400G has several SKUs listed in ASrocks QVL for the B450 SL, and each one was validated on a different BIOS version. The 3400G Pro was validated by P2.30, but the 3400G with SKU number YD340GC5M4MFI was validated with P4.00 and another SKU was validated with P2.70 - seems the support for all those SKUs was all over the place.

 

P4.00 was validated at March 11th of this year, and they're already on version P4.10 now.  Chances are that board you have may have an older BIOS and you may have the CPU who's SKU wasn't validated until P4.00, since that'd be for the most recent 3400G SKU. I'd certainly try updating the BIOS and giving that a shot.