I can verify that every other part works. The power supply, drives and case were carried over and I had been using the graphics card in the previous build for a few weeks until the other parts came in. A new (second hand, that is) cpu, mobo and memory. I used my friends known-working memory to ensure that wasn't the issue but after it still didn't boot (not even fans) I wanted to die. The CPU looks pristine with no flaws that I can see PLUS this is the second one I've ordered bc the first one came with some bent pins that I didn't trust myself to fix. With all that being said (mostly for the sake of "Yes I'm sure it's the motherboard"), is there any troubleshooting steps I can take to try and fix a motherboard? The guy I bought it from had pictures posted of it wotking so I'm inclined to think that I might've done something to mess it up. Any advise is welcome.
ROG Strix B450-F
R5 2600
1050 Ti
XPG 3200 16gb