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Onboard Serial Port 2

Common Options : Auto, 3F8h/IRQ4, 2F8h/IRQ3, 3E8h/IRQ4, 2E8h/IRQ3, Disabled

Quick Review

This BIOS feature allows you to manually select the I/O address and IRQ for the first serial port.

It is recommended that you leave it as Auto so that the BIOS can select the best settings for it. But if you need a particular I/O port or IRQ that has been taken up by this serial port, you can manually select an alternative I/O port or IRQ for it.

Please note that any I/O port or IRQ can be used for the serial port. There is no advantage or disadvantage in any of the options. As long as you do not select an I/O port or IRQ that has already been allocated to another device, any option will do.

You can also disable this serial port if you do not need to use it. Doing so frees up the I/O port and IRQ used by this serial port. Those resources can then be reallocated for other devices to use.


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