The message you quote is most likely not releated to the boot process failing - I get this message on several machines and they do work with FreeBSD.
Exactly how does the booting fail? does it hang (the machine just sists there, nothing happens)? Or does it reboot? Or?
And what model of Asus VivoBook do you have? There is a whole line, and the models seem to differ quite a lit when it comes to the hardware they include.