Dell computer question?- not turning on
I have a Dell dimension 2400 that while using it turned off and never powered back on. It was raining that day and I was on the computer and I heard what it sounded like a spark and I kinda saw it too behind where the computer case is(light was off so I saw like a small spark on the wall). I have the computer on a protected surge power strip. This happend before a month before and it was fixed with a new power supply. It didn't turn on also the next morning and it was raining also in the night. I'm thinking a voltage spike cause it .So this time I put in a new power supply and it wont turn on. The power supplys both work(new and older one). So what could it be that is causing it not to turn on? Anyone ever had this problem before? There is a green LED inside that turns on when pluged in but thats it. The power buttons LEDs don't turn on when pushed to power on.