try a system restore, if that does not fix the not starting when powered on you can backup the files, and perform a bios update using the DOS or from within the bios itself update options. updating the bios from within windows or when the computer is not powering on corectly is not recomended
"Fixed intermittent S3 hang during the resume cycle." relates to the system resuming operation from a sleep condition
and has noting to do with a non power on condition