Gigabyte B550M S2H User Manual - Page 28

Above 4G Decoding, Onboard LAN Controller, Super IO Configuration, USB Configuration

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&& HD Audio Controller Enables or disables the onboard audio function. (Default: Enabled) If you wish to install a 3rd party add-in audio card instead of using the onboard audio, set this item to Disabled. && PCIEX16 Bifurcation Allows you to determine how the bandwidth of the PCIEX16 slot is divided. Options: Auto, PCIE 2x8, PCIE 1x8/2x4, PCIE 2x4/1x8, PCIE 4x4 . (Note) (Default: Auto) && Above 4G Decoding Enables or disables 64-bit capable devices to be decoded in above 4 GB address space (only if your system supports 64-bit PCI decoding). Set to Enabled if more than one advanced graphics card are installed and their drivers are not able to be launched when entering the operating system (because of the limited 4 GB memory address space). (Default: Disabled) && Onboard LAN Controller Enables or disables the onboard LAN function. (Default: Enabled) If you wish to install a 3rd party add-in network card instead of using the onboard LAN, set this item to Disabled. ƒƒ Super IO Configuration && Serial Port1 Enables or disables the onboard serial port. (Default: Enabled) ƒƒ USB Configuration && Legacy USB Support Allows USB keyboard/mouse to be used in MS-DOS. (Default: Enabled) && XHCI Hand-off Determines whether to enable XHCI Hand-off feature for an operating system without XHCI Hand-off support. (Default: Enabled) && USB Mass Storage Driver Support Enables or disables support for USB storage devices. (Default: Enabled) && Port 60/64 Emulation Enables or disables emulation of I/O ports 64h and 60h. This should be enabled for full legacy support for USB keyboards/mice in MS-DOS or in operating system that does not natively support USB devices. (Default: Disabled) && Mass Storage Devices Displays a list of connected USB mass storage devices. This item appears only when a USB storage device is installed. ƒƒ NVMe Configuration Displays information on your M.2 NVME PCIe SSD if installed. ƒƒ SATA Configuration && SATA Mode Enables or disables RAID for the SATA controllers integrated in the Chipset or configures the SATA controllers to AHCI mode. RAID Enables RAID for the SATA controller. AHCI Configures the SATA controllers to AHCI mode. Advanced Host Controller Interface (AHCI) is an interface specification that allows the storage driver to enable advanced Serial ATA features such as Native Command Queuing and hot plug. (Default) (Note) This item is present only when you install a CPU that supports this feature. - 28 -

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&
HD Audio Controller
Enables or disables the onboard audio function. (Default: Enabled)
If you wish to install a 3rd party add-in audio card instead of using the onboard audio, set this item to
Disabled
.
&
PCIEX16 Bifurcation
Allows you to determine how the bandwidth of the PCIEX16 slot is divided. Options: Auto, PCIE 2x8,
PCIE 1x8/2x4, PCIE 2x4/1x8, PCIE 4x4
(Note)
. (Default: Auto)
&
Above 4G Decoding
Enables or disables 64-bit capable devices to be decoded in above 4 GB address space (only if your system
supports 64-bit PCI decoding). Set to
Enabled
if more than one advanced graphics card are installed and
their drivers are not able to be launched when entering the operating system (because of the limited 4 GB
memory address space). (Default: Disabled)
&
Onboard LAN Controller
Enables or disables the onboard LAN function. (Default: Enabled)
If you wish to install a 3rd party add-in network card instead of using the onboard LAN, set this item to
Disabled
.
±
Super IO Configuration
&
Serial Port1
Enables or disables the onboard serial port. (Default: Enabled)
±
USB Configuration
&
Legacy USB Support
Allows USB keyboard/mouse to be used in MS-DOS. (Default: Enabled)
&
XHCI Hand-off
Determines whether to enable XHCI Hand-off feature for an operating system without XHCI Hand-off
support. (Default: Enabled)
&
USB Mass Storage Driver Support
Enables or disables support for USB storage devices. (Default: Enabled)
&
Port 60/64 Emulation
Enables or disables emulation of I/O ports 64h and 60h. This should be enabled for full legacy support
for USB keyboards/mice in MS-DOS or in operating system that does not natively support USB devices.
(Default: Disabled)
&
Mass Storage Devices
Displays a list of connected USB mass storage devices. This item appears only when a USB storage device
is installed.
±
NVMe Configuration
Displays information on your M.2 NVME PCIe SSD if installed.
±
SATA Configuration
&
SATA Mode
Enables or disables RAID for the SATA controllers integrated in the Chipset or configures the SATA controllers
to AHCI mode.
±
RAID
Enables RAID for the SATA controller.
±
AHCI
Configures the SATA controllers to AHCI mode. Advanced Host Controller Interface
(AHCI) is an interface specification that allows the storage driver to enable advanced
Serial ATA features such as Native Command Queuing and hot plug. (Default)
(Note)
This item is present only when you install a CPU that supports this feature.
- 28 -