Specifications

2-12
Chapter 2: Getting started
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 value. 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
decreased average heat production.
Long Duration Power Limit [Auto]
Allows you to limit the turbo ratio’s long duration power. Use the <+> and <-> keys to adjust
the value.
Long Duration Maintained [Auto]
Allows you to maintain the turbo ratio’s long duration power. Use the <+> and <-> keys to
adjust the value.
Short Duration Power Limit [Auto]
Allows you to limit the turbo ratio’s long duration power. 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.
2.4.5 DRAM Voltage [Auto]
Allows you to set the DRAM Voltage. The values range from 1.35V to 1.65V with a 0.005V
interval.
According to Intel CPU specications, DIMMs with voltage requirement over 1.65V may
damage the CPU permanently. We recommend that you install the DIMMs with the voltage
requirement below 1.65V.