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Chapter 4: BIOS
I/O Device Confi guration
Access the submenu to make changes to the following settings.
KBC Clock Input
This setting allows you to select clock frequency for KBC. The options are 6MHz,
8MHz, 12MHz, and 16MHz.
Serial Port A
This setting allows you to decide how Serial Port A is controlled in the system.
The options are Enabled (user defi ned), Disabled, and Auto (BIOS- or OS- con-
trolled).
Base I/O Address
This setting allows you to select the base I/O address for Serial Port A. The options
are 3F8, 2F8, 3E8, and 2E8.
Interrupt
This setting allows you to select the IRQ (interrupt request) for Serial Port A. The
options are IRQ3 and IRQ4.
Serial Port B
This setting allows you to decide how Serial Port B is controlled in the system.
The options are Enabled (user defi ned), Disabled, Auto (BIOS controlled) and OS
Controlled.
Mode
This setting allows you to set the type of device that will be connected to Serial Port
B. The options are Normal and IR (for an infrared device).
Base I/O Address
This setting allows you to select the base I/O address for Serial Port B. The options
are 3F8, 2F8, 3E8 and 2E8.
Interrupt
This setting allows you to select the IRQ (interrupt request) for Serial Port B. The
options are IRQ3 and IRQ4.
Floppy Disk Controller
This setting allows you to decide how the fl oppy disk drive is controlled in the
system. The options are Enabled (user defi ned), Disabled, and Auto (BIOS and
OS controlled).
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