Asus P8P67 (REV 3.1) - Manual (Page 86)

3-20 Chapter 3: BIOS setup
Chapter 3
PCI Express X16_2 slot (black) bandwidth [Auto]
[Auto] PCIeX16_2 slot runs at X1 mode for system resource optimization.
[X4 mode] PCIeX16_2 slot runs at x4 mode for high performance support. (USB3_34,
PCIeX1_1, and PCIeX1_2 will be disabled.)
Marvell Storage Controller [AHCI Mode]
Allows you to select the Marvell storage controller operating mode.
[Disabled]
Disables the controller.
[IDE Mode] Set to [IDE Mode] when you want to use the Serial ATA hard disk drives as
Parallel ATA physical storage devices.
[AHCI Mode] Set to [AHCI Mode] when you want the SATA hard disk drives to use the
AHCI (Advanced Host Controller Interface). The AHCI allows the onboard
storage driver to enable advanced Serial ATA features that increases
storage performance on random workloads by allowing the drive to
internally optimize the order of commands.
Marvell Storage OPROM [Enabled]
This item appears only when you set the previous item to [Enabled] and allows you to enable
or disable the OptionRom of the Marvell storage controller.
Configuration options: [Enabled] [Disabled]
Realtek LAN Controller [Enabled]
[Enabled] Enables the Realtek LAN controller.
[Disabled] Disables the controller.
Realtek PXE OPROM [Disabled]
This item appears only when you set the previous item to [Enabled] and allows you to enable
or disable the PXE OptionRom of the Realtek LAN controller.
Configuration options: [Enabled] [Disabled]
Asmedia USB 3.0 Controller [Enabled]
[Enabled] Enables the Asmedia USB 3.0 controller.
[Disabled] Disables the controller.
Asmedia USB 3.0 Battery Charging Support [Enabled]
[Enabled] Enables Asmedia USB 3.0 fast battery charging support for USB 3.0
devices complying with the BC 1.1 regulation.
[Disabled] Disables battery charging support.
Serial Port Configuration
The sub-items in this menu allow you to set the serial port configuration.
Serial Port [Enabled]
Allows you to enable or disable the serial port (COM).
Configuration options: [Enabled] [Disabled]
Change Settings [IO=3F8h; IRQ=4]
Allows you to select the Serial Port base address.
Configuration options: [IO=3F8h; IRQ=4] [IO=2F8h; IRQ=3] [IO=3E8h; IRQ=4]
[IO=2E8h; IRQ=3]