Asus DN-300-R2 Manual page 31

PCI Express Native Power Management [Disabled]
This item allows you to enhance the power saving feature of PCI Express and
perform ASPM operations in the operating system. Configuration options:
[Disabled] [Enabled]
The following item appears only when you set the PCI Express Native Power
Management to [Enabled].
Native ASPM [Disabled]
[Enabled]
[Disabled]
[Auto]
PCH - PCI Express options
PCH DMI ASPM [Disabled]
This item allows you to control the Active State Power Management on both NB
(NorthBridge) side and SB (SouthBridge) side of the DMI Link.
Configuration options: [Disabled] [L0s] [L1] [L0sL1] [Auto]
ASPM [Disabled]
This item allows you to select the ASPM state for energy-saving conditions.
Configuration options: [Disabled] [L0s] [L1] [L0sL1] [Auto]
L1 Substates [Disabled]
This item allows you to select the PCI Express L1 Substates settings.
Configuration options: [Disabled] [L1.1] [L1.1 & L1.2]
PCI Express Clock Gating [Enabled]
This item allows you to enable or disable PCI Express Clock Gating for each port.
Configuration options: [Disabled] [Enabled]
PCIe Speed [Auto]
Allows you to configure the PCIe speed. Configuration options: [Auto] [Gen1]
[Gen2]
SA - PCI Express options
DMI Link ASPM Control [Disabled]
This item allows you to control the Active State Power Management on both
CPU and PCH (platform controller hub) Both DMI link ASPM control items of the
CPU and PCH sides must be enabled for the ASPM to take effect. Configuration
options: [Disabled] [L0s] [L1] [L0sL1]
Chapter 3: BIOS setup
Windows Vista OS controls the ASPM (active state
®
power management) support for devices.
BIOS controls the ASPM support for the device.
Automatic configuration.
3-5