My ps3 turns on and turns off after a short time

Hello, one day, my sister dropped my PS on the floor. I turned it on the next day, the little red light when it's off was on, I turned it on, it turned green, then after 1 or 2 minutes, it turned off by itself. I checked the motherboard (nothing burned or anything), the power supply (nothing), and my CD drive. I plugged it into various outlets and nothing works. Thanks in advance.

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