B550D4-4L
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3.3.2 Chipset Configuration
Above 4G Decoding
Globally Enables or Disables 64bit capable Devices to be Decoded in Above 4G Address
Space (Only if System Supports 64 bit PCI Decoding).
SR-IOV Support
If system has SR-IOV capable PCIe Devices, this option Enables or Disables Single Root IO
Virtualization Support.
Restore AC Power Loss
Select the power state after a power failure. If [Power Off] is selected, the power will remain
off when the power recovers. If [Power On] is selected, the system will start to boot up
when the power recovers.
Restore AC Power Current State
This allows you to restore AC Power Current State.
Onboard Debug Port LED
Enable or disable the onboard Dr. Debug LED.