I messed around with the fsb and memory settings for my ECS N2U400-A mb often. This time I couldn't just clear CMOS and start up the system. I thought the CMOS wasn't cleared successfully so I went all the way to disconnecting the power supply, removing the battery and leaving it out overnight. It still won't boot up. Everything was working fine before I changed the settings. The fans still turn on, the hd light goes on and stays on for 1/2 minute and goes off; there's no video -- it is just like everytime I had a bad setting which I can restart with clearing the CMOS. I wonder if the board is dead or the CMOS still wasn't cleared. Please help.