Z97 Extreme 4/4790K. I use this in my studio. The issue is that if the power is completely shut off to the computer, it won't start for 10-20 minutes. After that, it works fine. If I leave the power on at the wall, it's fine. I've changed the battery, the case and the power supply. If this is the mainboard - what is it and can it be fixed or should I buy a new one? It's annoying but of course I can get around it. But anything odd with the main recording rig is a red flag to me. Thanks for your time - it's much appreciated.