Asus M2N-X - Manual (Page 68)

2-26 Chapter 2: BIOS setup
SouthBridge/MCP65 Chipset Configuration
Primary Graphics Adapter [PCI Express -> PCI]
AZALIA AUDIO [Auto]
Front Panel Select [HD Audio]
MACO LANO [Auto]
OnBoard LAN Boot ROM [Disabled]
Primary Graphics Adapter [PCI Express -> PCI]
Display Device Priority, from high to low.
Configuration options: [PCI Express -> PCI] [PCI -> PCI Express]
AZALIA AUDIO [Auto]
Allows you to set or disable the AZALIA AUDIO.
Configuration options: [Auto] [Disabled]
Front Panel Select [HD Audio]
Allows you to set HD Audio mode.
Configuration options: [AC97] [HD Audio]
MACO LANO [Auto]
Allows you to set or disable the MACO LANO.
Configuration options: [Auto] [Disabled]
OnBoard LAN Boot ROM [Disabled]
Allows you to enable or disable the OnBoard LAN Boot ROM.
Configuration options: [Disabled] [Enabled]
SouthBridge Configuration
Power Down Control [Auto]
Allows DIMMs to enter power down mode by deasserting the clock enable
signal when DIMMs are not in use.
Configuration options: [Auto] [Disabled]