So yesterday morning i went to check my pc i left something downloading overnight.The PC had shutdown by itself .Tried to start it up .....NO POST.I did the cmos thing the battery thing to no avail.I check the power supply and the processor in another PC.They both work.So i thought the problem as with the board.I was on the phone with Asus filling out an RMA when i decided to press the power button .... it suddenly post.I did nothing special it just decided to POST.I hung up the phone and put everything back in and it was working fine.So i decided to see if i could recreate the problem this time i just left my pc on and went to sleep.When i woke up this morning IT WOULD NOT POST.FYI i using windows 7+ i never updated the bios(never had a problem)