[SOLVED] PC build will no longer boot

Jan 23, 2019
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I did my first PC build during the summer this past year and everything went well. (I'm not a hardware expert, but I had some friends to help) It worked great for several months, no problems. However a couple months ago it started having trouble booting. Everything on the inside would light up and all the fans work, but I get no power to my mouse and keyboard and no display. It occasionally works if I turn the PC off and back on a few times, but it's not consistent. I looked through some trouble shooting guides and I unplugged everything and plugged it all back in to no avail. Is it possible the motherboard is the problem?
Parts list: https://pcpartpicker.com/list/VtqCr6