My iMac wont turn on. Led 1 is lit

Checked power button.on click the led 1 blinks.connector to logic board is checked ok. Changed psu but the led 1 is the only thing lit up. Any help would be appreciated. No history with computer. Played Dota 2 last with my kid. And the next time I tried to turn it on….nothing.tried smc reset both with usb keyboard and bluetooth keyboard.both nothing.

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Can you narrow down which 27" model you have, Apple make quite a few different versions! On the bottom of the stand you'll find the S/N plug it into here EveryMac - Lookup let us know what you have.

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