PC Wont start

Jan 20, 2019
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I left my pc on and it went to sleep, an hour or two later I came back and it wont turn on. The gpu light is on, and if I turn the psu off than on again, and press the pc on button the fans spin for a second than stop, and the motherboard led lights up. I tried resetting the ram and unplugging and re plugging in the psu cables. Any help appreciated