Question PC won't boot up, is something incompatible ?

Nov 10, 2021
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Hello everyone, I have this kind of setup:
Specs:
Motherboard:Gigabyte H81m-s1
CPU: Intel Core i7-4790
RAM:2x 4gb ddr3 kingston
PSU: 400W
Hard drive: 1tb 7200rpm

Problem: the pc won't boot up, is there anything incompatible in here? Or there's a defective component ?
 

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