Asus P8P67-M - Manual (Page 63)

Chapter 2: BIOS information 2-15
The following five items appear only when you set both the Enhanced Intel SpeedStep
Technology and Turbo Mode items to [Enabled].
Turbo Ratio [Auto]
Allows you to manually adjust the Trubo CPU ratio.
[Auto]
All Turbo ratio are set by Intel CPU default settings.
[Maximum Turbo Ratio setting in OS] All numbers of active cores will be set to one single
Turbo ratio in OS.
[Maximum Turbo Ratio setting in BIOS] All numbers of active cores can be set to an individual
Turbo ratio in BIOS.
Maximum Turbo Ratio setting in OS [Auto]
This item appears only when you set the Turbo Ratio item to [Maximum Turbo Ratio
setting in OS]. Use <+> and <-> keys or the numeric keypad to adjust the value.
1-Core / 2-Core / 3-Core / 4-Core Ratio Limit [Auto]
This item appears only when you set the Turbo Ratio item to [Maximum Turbo Ratio
setting in BIOS]. Use the <+> and <-> keys or the numeric keypad to adjust the value.
Long duration power limit [Auto]
Use the <+> and <-> keys to adjust the value.
Long duration maintained [Auto]
Use the <+> and <-> keys to adjust the value.
Short duration power limit [Auto]
Use the <+> and <-> keys to adjust the value.
Additional Turbo Voltage [Auto]
Use the <+> and <-> keys to adjust the value.
Primary Plane Current Limit [Auto]
Use the <+> and <-> keys to adjust the value.
2.4.6 Offset Mode Sign [+]
[+] To offset the voltage by a positive value.
[–] To offset the voltage by a negative value.
CPU Offset Voltage [Auto]
Allows you to set the Offset voltage. The values range from 0.005V to 0.635V with a
0.005V interval.
Refer to the CPU documentation before setting the CPU voltage. Setting a high voltage
may damage the CPU permanently, and setting a low voltage may make the system
unstable.