Patent ID: 6907535

Claim:
A method for adjusting and executing efficiency adapted in an electronic apparatus, wherein said electronic apparatus has a central processing unit (CPU) and uses an operating system to manage data, comprising steps of: obtaining a loading value when said operating system is executed to detect said CPU under said electronic apparatus operation; and adjusting a working frequency and a working voltage of said CPU corresponding to said loading value for achieving adjustment of said executing efficiency in said electronic apparatus; wherein said step of adjusting said working frequency of said CPU comprises steps of: changing a value of a register in a timing pulse generator corresponding to said loading value; and changing a front side BUS frequency outputted from said timing pulse generator to said CPU corresponding to said value of said register change; and said step of adjusting said working voltage of said CPU comprises steps of: receiving a first voltage signal outputted from a voltage identification (ID) pin of said CPU to a voltage control regulator; outputting a second voltage signal according to said loading value from said voltage control regulator to a pulse width modulated regulator corresponding to said first voltage signal interdicted by said voltage control regulator; and changing said working voltage of said CPU in respond to said second voltage signal outputted from said pulse width modulated regulator to said CPU corresponding to said loading value and said first voltage signal.