Asus Z87A Computer Hardware User Manual


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Chapter 2: BIOS information
2-27
CPU C States [Auto]
Allows you to enable or disable the CPU C states.

The following items appear only when you set the CPU C States to [Enabled].
Enhanced C1 state [Enabled]
Allows your processor to reduce power when the system is in idle mode.

CPU C3 Report [Enabled]
Allows you to disable or enable the CPU C3 report to the operating system.

CPU C6 Report [Enabled]
Allows you to disable or enable the CPU C6 report to the operating system.

C6 Latency [Short]
Allows you to set the duration of C6 latency for C6 state.

CPU C7 Report [CPU C7s] Report [CPU C7s]
Allows you to disable or enable the CPU C7 report to the operating system.

C7 Latency [Long]
Allows you to set the duration of C7 latency for C7 state.

Package C State Support [Auto]

options: [Auto] [Enabled] [C0/C1] [C2] [C3] [C6] [CPU C7] [CPU C7s]
2.6.2 PCH Conguration
PCI Express Conguration

DMI Link ASPM Control [Auto]
Allows you to control the ASPM (Active State Power Management) on both Northbridge
side and Southbridge side of the DMI Link.

ASPM Support [Disabled]
Allows you to set the ASPM level.

PCIe Speed [Auto]
Allows you to select the PCI Express port speed.

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