Supermicro X12DPFR-AN6 User Manual page 85

IIO eDPC Interrupt (Available when "IIO eDPC Support" is set to On Fatal
Error/On Fatal and Non-Fatal Errors)
Select Enable to enable IIO eDPC Interrupt support. The options are Enable and Dis-
able.
IIO eDPC ERR_COR (Error Correction) Message (Available when "IIO eDPC
Support" is set to On Fatal Error/On Fatal and Non-Fatal Errors
If this feature is set to Enable, an IIO eDPC error correction message will be displayed.
The options are Enable and Disable.
South Bridge
Select this submenu and press <Enter>, the following South Bridge information will display:
•
USB Module Version
•
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 Disable 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 XHCI (Extensible
Host Controller Interface) hand-off. The XHCI ownership change should be claimed by the
XHCI driver. The options are Disabled and Enabled.
Port 60/64 Emulation
Select Enabled for I/O port 60h/64h emulation support, which in turn, will provide 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 support, which will allow the BIOS
to monitor and attempt to reduce the level of electromagnetic interference caused by the
components whenever needed. The options are Enabled and Disabled.
Port 61h Bit-4 Emulation
Select Enabled for I/O Port 61h-Bit 4 emulation support to enhance system performance.
The options are Enabled and Disabled.
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Chapter 4: UEFI BIOS