Just got this today, all went together as expected until i try to boot the pc. Power lights come on, RGB light up, GPU fans spin up, but im getting a solid yellow light at the top of the board, which according to the book is a boot issue. Ive stripped everything out again and rebuilt it all once more, still same issue. Tried different hard drives, have noting else plugged in, it just refuses to boot. Anyone else had this issue or have any idea what to try next? Im at a loss now to whats causing it.