Biostar Hi-Fi P61S2 Manual page 19

Hi-Fi P61S2 UEFI BIOS Manual
PCI Express Configuration
ASPM
This item sets PCI Express Active State Power Management settings.
Options: Disabled (Default) / L0s / L1 / L0sL1 / Auto
PCIe Speed
This item selects PCI Express port speed.
Options: Auto (Default) / Gen1 / Gen2
USB Configuration
EHCI1/2
This item controls the USB EHCI (USB2.0) functions. One EHCI controller
must always be enabled.
Options: Enabled (Default) / Disabled
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