updated the bios exact same problem
$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 81ET63WW (1.39 ) 04/11/2013
updated the bios
exact same problem
$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
81ET63WW (1.39 )
04/11/2013