Intel FPC 5084 - Manual (Page 38)

FPC 5084
28 AMI BIOS Setup Utility
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.
Intel (R) SpeedStep (tm) tech
This item helps you enable or disable the Intel SpeedStep
Technology.
Intel (R) C-STATE tech
Use this item to enable or disable the C-State technology.