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5. SPECIFICATIONS
IRQ assignment when the APIC is disabled
Interrupt pin
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
5.5 Serial Port Settings
The factory default settings for the serial ports are as follows. Do not change these settings. If you do, the equipment
might not work properly.
Name recognized
by the BIOS
Serial port A
#: Automatically assigned by the BIOS
System timer
Not used
Not used
Not used
Serial port 1 (COM1)
Not used
Not used
Not used
Real-time clock
Not used
LAN1
SMBus controller, onboard video, xHCI, SATA controller, LAN2, LAN3, all PCI devices
Not used
Coprocessor
Not used
Not used
#
I/O address
IRQ assignment
3F8h
Description
Name recognized
#
by the OS
IRQ 4
COM1
5-10
Note
Standard feature
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