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Chapter 2: BIOS information 2-15
2.4.4 CPU Power Management
The sub-items in this menu allow you to set the CPU ratio and features.
CPU Ratio [Auto]
Allows you to manually adjust the maximum non-turbo CPU ratio. Use <+> and <-> keys or the
numeric keypad to adjust the ratio. The valid value ranges vary according to your CPU model.
Enhanced Intel SpeedStep Technology [Enabled]
Allows you to enable or disable the Enhanced Intel
®
SpeedStep Technology (EIST).
[Disabled] Disables this function.
[Enabled] The operating system dynamically adjusts the processor voltage and core frequency
which may result in decreased average consumption and decrease average heat
production.
Turbo Mode [Enabled]
[Enabled] Allows processor cores to run faster than marked frequency in specic conditions.
[Disabled] Disables this function.
The following three items appear only when you set both the Enhanced Intel
®
SpeedStep
Technology and Turbo Mode items to [Enabled].
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.
Primary Plane Current Limit [Auto]
Maximum instantaneous current allowed at any given time for CPU cores
Use <+> and <-> key to adjust the value at 0.125A increment.
Secondary Plane Current Limit [Auto]
Maximum instantaneous current allowed at any given time for Internal Graphics cores.
Use <+> and <-> key to adjust the value at 0.125A increment.
2.4.3 DRAM Timing Control
The sub-items in this menu allow you to set the DRAM timing control features. Use the <+>
and <-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard
and press the <Enter> key.
Changing the values in this menu may cause the system to become unstable! If this
happens, revert to the default settings.
2.4.5 DIGI+ VRM
CPU Load-Line Calibration [Auto]
Load-line is dened by Intel VRM spec and affects CPU voltage. The CPU working voltage
will decrease proportionally to CPU loading. Higher value gets a higher voltage and better
overclocking performance, but increases the CPU and VRM thermal. This item allows you to
adjust the voltage range from the following percentages to boost the system performance:
0% (Regular), 25% (Medium), 50% (High), 75% (Ultra High) and 100% (Extreme).
Conguration options: [Auto] [Regular] [Medium] [High] [Ultra High] [Extreme]
The actual performance boost may vary depending on your CPU specication.