User's Manual

2-16 Chapter 2: Hardware information
2.5.3 Interrupt assignments
IRQ P r i o r i t y Standard Function
0 - System Timer
1 - Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
3 - Communications Port (COM2)
4 - Communications Port (COM1)
6 - Standard Floppy Disk Controller
8 - System CMOS/Real Time Clock
9 - Microsoft ACPI-Compliant System
12 - Microsoft PS/2 Mouse
13 - Numeric Data Processor
14 - Primary IDE Channel
15 - Secondary IDE Channel
16 - Generic Marvell Yukon Chipset based Controller #3
16 - Intel
®
82801G (ICH7 Family) PCI Express Root Port - 27D0
16 - Intel
®
82801G (ICH7 Family) USB Universal Host Controller - 27CC
16 - Intel
®
82801G (ICH7 Family) USB Enhanced Host Controller
16 - Intel
®
82801GR/GH/GHM (ICH7 Family) PCI Express Root Port - 27E2
17 - Generic Marvell Yukon Chipset based Ethernet Controller
17 - Intel
®
82801G (ICH7 Family) PCI Express Root Port - 27D2
17 - Intel
®
82801G (ICH7 Family) USB Universal Host Controller - 27C9
17 - Intel
®
82801GR/GH/GHM (ICH7 Family) PCI Express Root Port - 27E2
18 - Marvell 61xx Marvell RAID Controller
18 - Generic Marvell Yukon Chipset based Ethernet Controller #2
18 - Intel
®
82801G (ICH7 Family) PCI Express Root Port - 27D4
19 - Generic Marvell Yukon Chipset based Ethernet Controller #4
19 - Intel
®
82801G (ICH7 Family) PCI Express Root Port - 27D6
19 - Intel
®
82801GB/GR/GH (ICH7 Family) Serial ATA Storage Controller - 27C0
* These IRQs are usually available for ISA or PCI devices.
Standard interrupt assignments