Asus P8P67 LE - Onboard Devices Configuration

Chapter 2: BIOS information 2-21
Legacy USB3.0 Support [Enabled]
[Enabled] Enables the support for USB 3.0 devices on legacy operating systems
(OS).
[Disabled] Disables the function.
EHCI Hand-off [Disabled]
[Enabled] Enables the support for operating systems without an EHCI hand-off
feature.
[Disabled] Disables the function.
2.5.6 Onboard Devices Conguration
HD Audio Controller [Enabled]
[Enabled] Enables the High Denition Audio Controller.
[Disabled] Disables the controller.
The following two items appear only when you set the HD Audio Controller item to
[Enabled].
Front Panel Type [HD]
Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97 or high-
denition audio depending on the audio standard that the front panel audio module supports.
[HD] Sets the front panel audio connector (AAFP) mode to high denition audio.
[AC97] Sets the front panel audio connector (AAFP) mode to legacy AC’97.
SPDIF Out Type [SPDIF]
[SPDIF] Sets to [SPDIF] for SPDIF audio output.
[HDMI] Sets to [HDMI] for HDMI audio output.
VIA 1394 Controller [Enabled]
[Enabled] Enables the onboard IEEE 1394a controller.
[Disabled] Disables the controller.
PCI Express X16_2 slot (Black) bandwidth [2,0,1,1 x2 mode]
[Auto] The PCIe X16_2 slot runs at x4/x2 mode for system resource optimization.
[4,0,0,0 x4 mode] The PCIe X16_2 slot runs at x4 mode for high performance support.
(PCIe X1_1, and PCIe X1_2 slots will be disabled.)
[2,0,1,1 x2 mode] The PCIe X16_2 slot runs at x2 mode with all slots enabled.
• Due to the CrossFireX™ limitation, PCIe x16_2 slot must run at x4 mode to set up
a CrossFireX™ conguration. The default setting is x2 mode. Set the above item to
[4,0,0,0 x4 mode] when you want to set up a CrossFireX™ conguration.
• The PCIe x1 slots share the bandwidth with the PCIe x16_2 slot. Thus, all PCIe x1 slots
will be disabled when you install two CrossFireX™ graphics cards on both the PCIe x16
slots to set up a CrossFireX™ conguration.