[SOLVED] No post

Feb 19, 2019
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Hello, I'm writing this after 5 hours of troubleshooting my recent pc build, this is my last cry for help.
I have recently decided to swap out my Pentium 4, and asrock b250m hdv motherboard with an msi p67a-gd53 and an i5 2500k. I was almost done building this when i realized it isn't posting.
I've done a thorough troubleshooting session and even rebuilt it outside of the case, with the same outcome.
My system turns on, fans spin, lights on, the humm of the pc is present, it just wont post. I have an rx 570, Msi p67a-gd53, and it 2500k

Do I need to somehow get into the bios to update it? And if so, how do I do that since I have none of the cables for my motherboard (its old)