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Chapter 7: BIOS
7-9
PCI Express Spread Spectrum
This setting is used to enable spread spectrum for the PCI Express. Options
are Disabled and Down Spread.
Primary Video
This setting is used to switch the PCI bus scanning order while searching for the
video card. It allows the user to select the type of primary VGA in case of multiple
video controllers. Options are Slave PCI-Express and Master PCI-Express.
I/O Device Confi guration
Onboard Floppy Controller
Use this setting to Enable or Disable the onboard fl oppy controller.
Serial Port1 Address
This option specifi es the base I/O port address and Interrupt Request address of
serial port 1. Select "Disabled" to prevent the serial port from accessing any system
resources. When this option is set to Disabled, the serial port physically becomes
unavailable. Select "3F8/IRQ4" to allow the serial port to use 3F8 as its I/O port
address and IRQ 4 for the interrupt address. The options are Disabled, 3F8/IRQ4,
3E8/IRQ4 and 2E8/IRQ3.
Serial Port2 Address
This option specifi es the base I/O port address and Interrupt Request address of
serial port 2. Select "Disabled" to prevent the serial port from accessing any system
resources. When this option is set to "Disabled", the serial port physically becomes
unavailable. Select "2F8/IRQ3" to allow the serial port to use 2F8 as its I/O port
address and IRQ 3 for the interrupt address. The options are Disabled, 2F8/IRQ3,
3E8/IRQ4 and 2E8/IRQ3.
Serial Port 2 Mode
Tells BIOS which mode to select for serial port 2. The options are Normal,
IrDA and ASKIR.