Chapter 3, 3 onboard devices configuration, Primary video controller [gfx0-gpp-igfx-pci – Asus M4A78T-E User Manual
Page 80: Nb power management features [auto, Pci express configuration, High definition audio [enabled, Surround view [disabled, Fb location [above 4g, Amd 780 hd audio [enable

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Chapter 3: BIOS setup
Chapter 3
GFX Dual Slot Configuration [Auto]
[Auto]
Switches the PCIe lane of the PCIEX16_1 and PCIEX16_2 slots
automatically.
[Enable] Sets the PCIe lane of the PCIEX16_1 and PCIEX16_2 slots to x8/x8 or
x16/x1 links.
[Disabled] Disables this function.
GPP Slots Power Limit, W [25]
Use the <+> and <-> keys to change the value or type the desired value using the
numeric keypad. The values range from 0 to 255.
Primary Video Controller [GFX0-GPP-IGFX-PCI]
Configuration options: [GFX0-GPP-IGFX-PCI] [GPP-GFX0-IGFX-PCI] [PCI-GFX0-GPP-
IGFX] [IGFX-GFX0-GPP-PCI]
NB Power Management Features [Auto]
Configuration options: [Auto] [Disable]
PCI Express Configuration
PCI Express Configuration
GFX Dual Slot Configuration
[Auto]
GPP Slots Power Limit, W
[25]
Auto
Enable
Disabled
BIOS SETUP UTILITY
Advanced
3.6.3
Onboard Devices Configuration
High Definition Audio [Enabled]
[Enabled]
Enables the High Definition Audio Controller.
[Disabled]
Disables the controller.
On Board Devices Configuration
High Definition Audio
[Enabled]
Front Panel Type
[HD]
Onboard LAN
[Enabled]
Onboard LAN Boot ROM
[Disabled]
Firewire 1394
[Enabled]
Serial Port1 Address
[3F8/IRQ4]
Disabled
Enabled
BIOS SETUP UTILITY
Advanced
Surround View [Disabled]
If you set the PCI Express device as the primary display and enable this item, you may use
the internal graphics as the secondary display.
Configuration options: [Disabled] [Enable]
FB Location [Above 4G]
Configuration options: [Below 4G] [Above 4G]
AMD 780 HD Audio [Enable]
Configuration options: [Disabled] [Enable]