the last one is P8Z68-V PRO BIOS 3402 from asus. I never flash the bios from windows if it screws up it brick your mb. I always use a usb stick fat32 formated and use the bios flash tools in the bios. http://www.lucidlogix.com/index.htmlhttp://www.lucidlogix.com/driverdownloads-virtu.html
the updated software..newer then the one on asus web page,
you dont have to install it if your not trying to run the gpu and the intel video chipset in games. if you have a slower gpu you can make the intel chipset help your game play.