Gigabyte H273-Z80-AAN1, User Manual, Page: 73 / 166

BIOS Setup
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Parameter
Description
PCI Bus Driver Version
Displays the PCI Bus Driver version information.
SLOT#_Lanes Configuration
(Note1)
Change the PCIe lanes.
Options available: Disabled, Auto, x16, x8x8, x8x4x4, x4x4x8,
x4x4x4x4. Default setting is
Auto .
SLOT #_I/O ROM
(Note1)
When enabled, this setting will initialize the device expansion ROM
for the related PCI-E slot.
Options available: Disabled, Enabled. Default setting is
Enabled .
SLOT #_Link Speed
(Note1)
Configure PCIe max link speed.
Options available: Auto, Gen5, Gen4, Gen3, Gen2, Gen1.
Default setting is
Auto .
OCP# Lanes
(Note2)
Change mezzanine PCIe lanes.
Options available: Disabled, Auto, x16, x8x8, x8x4x4, x4x4x8,
x4x4x4x4. Default setting is
Auto .
OCP# I/O ROM
(Note2)
When enabled, this setting will initialize the device expansion ROM
for the related devices.
Options available: Disabled, Enabled. Default setting is
Enabled .
OCP# Link Speed (Note2)
Configure mezzanine OCP max link speed.
Options available: Auto, Gen5, Gen4, Gen3, Gen2, Gen1.
Default setting is
Auto .
Onboard LAN Controller
(Note3)
Enable/Disable the onboard LAN devices.
Options available: Disabled, Enabled. Default setting is
Enabled .
Onboard LAN# I/O ROM
(Note3)
Enable/Disable the onboard LAN devices, and initializes device
expansion ROM.
Options available: Disabled, Enabled. Default setting is
Enabled .
PCI Devices Common Settings
Above 4G Decoding
Enable/Disable memory mapped I/O to 4GB or greater address
space (Above 4G Decoding).
Options available: Disabled, Enabled. Default setting is
Enabled .
SR-IOV Support
If the system has SR-IOV capable PCIe devices, this item Enable/
Disable Single Root IO Virtualization Support.
Options available: Disabled, Enabled. Default setting is
Enabled .
Relaxed Ordering
Enable/Disable PCI express device relaxed ordering.
Options available: Disabled, Enabled. Default setting is
Enabled .
(Note1) This section is dependent on the available PCIe Slot.
(Note2) This section is dependent on the available OCP connector.
(Note3) This section is dependent on the available LAN controller.