Dell has hidden a lot of options in the BIOS of the Alienware M17x R4, the modified BIOS versions here will show you all the hidden menus and allow you to further tweak your system and optimize its performance.
Don't change anything you're not familiar with. There might be functions available which don't work on your system, so use this BIOS with care. It should only be used by advanced users.
In case you mess up and your system refuses to