Supermicro X13DSF-A User Manual page 117

South Bridge
The following information is displayed:
•
USB Devices:
Legacy USB Support
Select Enabled to support onboard legacy USB devices. Select Auto to disable legacy
support if there are no legacy USB devices present. Select Disabled to have all USB
devices available for EFI applications only. The options are Enabled, Disabled, and Auto.
XHCI Hand-off
This is a work-around solution for operating systems that do not support Extensible Host
Controller Interface (XHCI) hand-off. The XHCI ownership change should be claimed by
the XHCI driver. The options are Enabled and Disabled.
Port 60/64 Emulation
Select Enabled for I/O port 60h/64h emulation support, which in turn, provides complete
legacy USB keyboard support for the operating systems that do not support legacy USB
devices. The options are Disabled and Enabled.
PCIe PLL SSC
Select Enabled for PCH PCIe Spread Spectrum Clocking (SSC) support, which allows the
BIOS to monitor and attempt to reduce the level of electromagnetic interference caused by
the components whenever needed. The options are Disabled and Enabled.
Server ME Information

The following information is displayed:
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General ME Configuration
•
Oper. Firmware Version
•
Current State
•
Error Code
117
Chapter 4: UEFI BIOS