Troubleshooting, red cpu led, wont boot to bios

Nov 28, 2018
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Hello guys!

Yesterday all my parts for my first PC build arrived, i built it with the help of a video on youtube, when i wanted to start, nothing happend. So i breadboarded it and now i only have motherboard, cpu, cpu cooler, psu & ram connected. When i try to start, the cpu fan is running, mystic light runs, psu fan runs, and there is a red led showing where "cpu" stands & on the monitor it showes me nothing. When i try to start the motherboard without the cpu & cpu cooler the same red light appears.

Already tried hdmi & dvi cable, starting with only 1 ram, even without any ram (still 1red led on cpu but no red led on dram, confused me a bit). No bend pins on the cpu and cpu cooler is attached correctly.

Do you guys have any idea what i can try or is the cpu probably not working?

cpu: ryzen 5 2400g with stock cooler
motherboard: msi x470 gaming plus
psu: corsair vs550
ram: patriot 2x4gb 3000mhz