Chapter 4 - BIOS Setup
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4.4 Advanced BIOS Features
CPU Feature
Press <Enter> for the sub-menu of each item:
C1E Function
When The CPU ID>0F40 and is above 533MHz/2.8GHz or 800MHz/3.6GHz, you
can enable C1E Support to lower the CPU power consumption while idle.
Settings: [Auto], [Enabled] and [Disabled].