GIGABYTE Xeon Processor Motherboard GA-5YXS-RH - Manual (Page 35)

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BIOS Setup
I/O Device Configuration
Figure 2-3: I/O Device Configuration
Serial Port A
This allows users to configure serial prot A by using this option.
Enabled Enable the configuration (Default setting)
Disabled Disable the configuration.
Base I/O Address/IRQ
3F8/IRQ4 Set IO address to 3F8/IRQ4. (Default setting)
2F8/IRQ3 Set IO address to 2F8/IRQ3.
3E8/IRQ4 Set IO address to 3E8/IRQ4.
2E8/IRQ3 Set IO address to 2E8/IRQ3.
Serial Port B
This allows users to configure serial prot B by using this option.
Enabled Enable the configuration
Disabled Disable the configuration.(Default setting)