My Computer won’t Boot, Mainboard Led (VGA Error)

[schuu]

Hello dear computer friends, 

I upgraded my Pc. (gaming) and i had a lot trouble running it. 
Mostly when im trying to boot or reboot my computer, it won’t start properly or it wont start at all. I bought a Msi Tomahawk B550 Mainboard a Ryzen 5 3600 also 32GBs of Corsair cl16 Ram Ddr4 Ram (3200mhz) a Asus Strx Gtx1050ti 4GB Nvdia Graphics Card 2 ssd with one of them being 120gb and the second one 1tb of Storage. (My Cpu Cooler is the Amd stock one). 
But the VGA isnt the only error that occurs. Sometimes it starts completely fine. And after running like 5 minutes my computer completely freezes and every input is disabled. Even when i start the computer without the graphicscard, the on board video output wont work (onboard hdmi output for example). 
i really need help.. (sry for my bad English im actually from Germany)

[boggy77]

is your ram 2x16 or 4x8? if 2x16, is it in slots 2 and 4? is xmp enabled in bios? any other bios settings you might have changed?

have you tried a bios update? are all your drivers (video, chipset) up to date?