I replace the south bridge board and now my console turns on then off instantly after replacing it. I know the board was working since i got it from another working console that just had a bad HDMI port. Originally this console would turn on then off so that’s when i change the power supply and it worked but the eject button would not work so that’s when I changed the board and after doing that its now turning on then off instantly like it use to do. Let me know if theirs anything else to check in case i missed anything or if it’s just a bad main board. Thanks