sorry fir long title first and foremost
now, I am trouble shooting a old pc for my dad its a Compact presario Sr526nx the only thing he has changed befor was the hard drive to a ssd. after a thunderstorm it wouldn’t turn on the power supply was completely dead so i replaced it and powered it on with some success the led light turn on the computer in front of the case but it seems there is no power to the mobo no fans, no led lights inside, and no display. I have triple checked everything with the wires.