I finished building my new computer and then I tried turning it on. The lights on the case went on and the top fan turn on for a bit then it just went off. So basically my computer isn't turning on. Any ideas? I connected the power supply into the motherboard correctly I believe.
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Please recheck all motherboard seatings and connections first - and very carefully. Try removing everything not needed for boot e.g. sound card if installed. Are there any bleeps or numbers displayed from the motherboard during boot?