asrock x470 not booting to bios

hi, i am currently building a new pc, with the following specs.
mobo: asrock x470 master sli
ram: 2X8gb corsair vengeance lpx at 3000 mhz
cpu: ryzen 2600
cpu-cooler: dark rock pro 4
coolermaster mwe 550 gold
samsung 500 gb ssd
and a rtx 2070(i dont have it yet it is coming in 2 days so the gpu is out of the picture for now)
my problem is as follows when i turn my pc on it wont boot the led will go on and start a breath pattern and the fans start spinning but nothing is happening on the screen. i have already tryed booting without ram and with 1 ram stick but nothing is happening. i als have just 1 8 pin in de cpu power and not al 4 because my psu doesnt have a 4 pin conector. any help is much appreciated.


Greating Ole

Edited by livian - 08 Nov 2018 at 8:21pm

of i am thinking intel i thought it would post even without gpu but that's only intel, right? btw i also thing my ram isnt compatible as it is CMK16GX4M2B3000C16 and is not on the compatible list(https://www.amd.com/system/files/2017-06/am4-motherboard-memory-support-list-en_0.pdf)

akirabbq wrote: Ryzen 2600 does not have an APU. You need a discrete video card to boot up the PC.

yes thank you i came to the realisation by the first guy, il just have to wait a few days and see if it works when i get the gpu. Thanks