[SOLVED] How do I install CPU?

Astralv

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I built Intels before, but this is Ryzen 7 3700X, and I am not sure how it supposed to go in to the place. I put it on a top of a socket, but I can't see pins, so how do I know pins aligned? Yes, I see the small triangle in the corner and I alight it with the corner marked on the socket, but I dont feel anything getting in place- there is a lot of space to move it around! Thanks.