MSI MICRO ATX EX7 Manual page 82

Onboard Serial Port 2
Disabled/(3F8/IRQ4)/(2F8/IRQ3)/(3E8/IRQ4)/(2E8/IRQ3)
The system has an On-board Super I/O chipset with 2 serial ports.
The On-board serial ports can be selected as:
Disabled
3F8/IRQ4
2F8/IRQ3
3E8/IRQ4
2E8/IRQ3
Note: Because the ISA Bus Interrupt accepts low to high edge trigger, the
interrupt request line cannot be shared by multiple sources. If an off-
board ISA add-on card with a serial port is installed the user may have
to disable the on-board serial port because it will conflict with IRQ
request line for the off-board serial port.
UART Mode Select
This item allow you to determine which Infra Red (IR) function of
onboard I/O chip. If you choose IR function, the COM 2 will not function.
Onboard Parallel Mode
Disabled
(3BCH/IRQ7)/
(278H/IRQ5)/
(378H/IRQ7)
Disable
3BCH/IRQ7 Line Printer port 0
278H/IRQ5
378H/IRQ7
COM 1 uses IRQ4
COM 2 uses IRQ3
COM 3 uses IRQ4
COM 4 uses IRQ4
There is a built-in parallel port on the
on-board Super I/O chipset that pro-
vides Standard, ECP, and EPP features.
It has the following options:
Line Printer port 2
Line Printer port 1
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