3 weeks out of the box and my early 2008 Mac Pro has been diagnosed by Apple to have a dead logic board.....Were it not for the 50ish lbs of metal and Si, I might have opted for bringing it to the Apple Store
Sounds familiar, after almost exactly 3 weeks my fourth one died last weekend and won't turn on at all, let alone boot up. I lugged the 50ish lbs to the Apple store (a familiar route) and got the aching arms to prove it. Waiting for repairs now. Think different. I'm starting to.