My iMac randomly powers down
My 2017 27” iMac randomly powers down. One month after purchase it didn’t boot at all so apple replaced power supply after which it intermittently powers down without any sound or notice and at any time. Sometimes while booting up. A few days back apple changed the logicboard but that also didn’t solve the problem. I made a video of this issue https://youtu.be/uCr92WGQa0M
Any suggestions what could be wrong?