Acnodes OPC 8190 - Manual (Page 36)

 Configure advanced CPU settings
This screen shows the CPU Configuration, and you can change
the value of the selected option.
 Max CPUID Value Limit
You can enable this item to let legacy operating systems
boot even without support for CPUs with extended CPU ID
functions.
 Execute-Disable Bit Capability
This item helps you enable or disable the No-Execution
Page Protection Technology.
 Hyper Threading Technology
Use this item to enable or disable Hyper-Threading
Technology, which makes a single physical processor
perform multi-tasking function as two logical ones.
 SpeedStep (tm) tech
This item helps you enable or disable the SpeedStep
Technology.
 C-STATE tech
Use this item to enable or disable the C-State technology.
 Enhanced C-States
This item allows you to enable or disable any available
enhanced C-states ( C1E, C2E, C3E, C4E and Hard C4E).