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Super IO Configuration
Super IO Chip AST2500
Serial Port 1 Configuration
Serial Port 1
Select Enabled to enable the onboard serial port specified by the user. The options are
Disabled and Enabled.
Device Settings
This item displays the base I/O port address and the Interrupt Request address of a serial
port specified by the user.
Change Settings
This feature specifies the base I/O port address and the Interrupt Request address of Serial
Port 1. Select Auto for the BIOS to automatically assign the base I/O and IRQ address to
a serial port specified.
The options for Serial Port 1 are Auto, (IO=3F8h; IRQ=4), (IO=3F8h; IRQ=3, 4, 5, 6, 7, 9,
10, 11, 12), (IO=2F8h; IRQ=3, 4, 5, 6, 7, 9, 10, 11, 12); (IO=3E8h; IRQ=3, 4, 5, 6, 7, 9, 10,
11, 12), and (IO=2E8h; IRQ=3, 4, 5, 6, 7, 9, 10, 11, 12).
Serial Port 2 Configuration
Serial Port 2
Select Enabled to enable the onboard serial port specified by the user. The options are
Disabled and Enabled.
Device Settings
This item displays the base I/O port address and the Interrupt Request address of a serial
port specified by the user.
Note: This item is hidden when Serial Port 2 is set to Disabled.
Change Settings
This feature specifies the base I/O port address and the Interrupt Request address of Serial
Port 2. Select Auto for the BIOS to automatically assign the base I/O and IRQ address to a
serial port specified. The options for Serial Port 2 are Auto, (IO=2F8h; IRQ=3), (IO=3F8h;
IRQ=3, 4, 5, 6, 7, 9, 10, 11, 12), (IO=2F8h; IRQ=3, 4, 5, 6, 7, 9, 10, 11, 12); (IO=3E8h;
IRQ=3, 4, 5, 6, 7, 9, 10, 11, 12), and (IO=2E8h; IRQ=3, 4, 5, 6, 7, 9, 10, 11, 12).
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Chapter 6: BIOS
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