content: Intel Core i7-6700K CPU @ 4.00GHz on a  "Z170A XPOWER GAMING TITANIUM EDITION" The debug LED's show "00" (not 0D) I tried to have a BIOS Flashback+, I see the red  Flashback LED blink a couple of times and then stops.  So far I could not make the MSI motherboard detect any new Flash rom through an USB key.  All the USB drives are minimal 8 GB the ones I have here. This PC has not moved no temperature change or configuration change. Jut failed to boot up after I stopped Windows the day before. Never had this issue before. I did not change any BIOS setting in the last few weeks. Also MSI LiveUpdate was not working since it was complaining like hell for yet another update, so I uninstalled it a week ago.