Xbox Series S Turn on and Off

Hi, i need help with my Series S. When i try to turn on the console ist immediatly turn off. I Check all around the board for shorts but nothing. I also Check the ssd but its fine. When i push the power button the two MPS Chips light up on the thermal cam. I watch every YouTube Video i find about this topic but i cant find the Solution. May anyone had this issue before and can tell me what steps i can further try.