ADLINK MXE-5300 Series - Manual (Page 60)

50 BIOS Settings
Intel Virtualization Technology
When enabled, a VMM can utilize the additional hardware
capabilities provided by Vanderpool Technology.
Local x2APIC
Enables Local x2APIC, some OS do not support this.
EIST
Enables/disables Intel SpeedStep Technology.
Turbo Mode
Enables/disables Intel TurboBoost Technology.
C1E Function
When enabled, lets CPU enter enhanced C1 sleep state to
save more power than C1.
CPU C3 Support
Enables/disables CPU C3(ACPI C2) report to OS.
CPU C6 Support
Enables/disables CPU C6(ACPI C3) report to OS.
CPU C7 Support
Enables/disables CPU C7(ACPI C3) report to OS.