Asus M2N4-SLI - Manual (Page 87)

4-30 Chapter 4: BIOS setup
USB 2.0 Legacy support[enabled]
Enables or disables USB legacy device (USB keyboard and USB mouse)
support. Configuration options: [Disabled] [Enabled]
Onboard nVidia LAN[Enabled]
Enable or Disable Onboard NV LAN Interface.
Configuration options: [Enabled] [Disabled]
Onboard LAN Boot ROM[Disabled]
Enable or Disable the bootrom of the onboard LAN.
Configuration options: [Enabled] [Disabled]
AC97 Audio[Enabled]
Enable or Disable Onboard AC 97.
Configuration options: [Enabled] [Disabled]
Serial Port1 Address [3F8/IRQ4]
Allows you to select the Serial Port1 base address.
Configuration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4]
[2E8/IRQ3] [Auto]
Parallel Port Address [378/IRQ7]
Allows you to select the Parallel Port base addresses.
Configuration options: [Disabled] [378/IRQ7] [278/IRQ5] [3BC/IRQ7]
Parallel Port Mode [ECP+EPP]
Allows you to select the Parallel Port mode.
Configuration options: [SPP] [EPP] [ECP] [ECP+EPP]
ECP Mode Use DMA [3]
Allows selection of ECP Mode. Configuration options: [1] [3]