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Xbox One S turns on then turns off

Hello, Everyone. I have an Xbox One S that, when powered on, plays the startup chime, the light shines white, and then plays the shut-down chime and turns back off a few seconds later. The console's fan does not spin during this. I have attempted a PSU replacement, but with no results. I took the board out and discovered some corrosion in a corner of the board, but I cleaned it off with some 91% Isopropyl Alcohol. All help would be appreciated.

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