Asus P5B SE User Manual - Page 40
Interrupt assignments
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2.5.3 Interrupt assignments Standard interrupt assignments IRQ Priority Standard function 0 1 System timer 1 2 Keyboard controller 2 - Re-direct to IRQ#9 3 12 IRQ holder for PCI steering* 4 13 Communications port (COM1)* 5 14 IRQ holder for PCI steering* 6 15 Floppy disk controller 7 16 Printer Port (LPT1)* 8 3 System CMOS/Real Time Clock 9 4 ACPI* 10 5 SMBus Controller* 11 6 IRQ holder for PCI steering* 12 7 PS/2 compatible mouse port* 13 8 Numeric data processor 14 9 Primary IDE channel 15 10 Secondary IDE channel * These IRQs are usually available for PCI devices. IRQ assignments for this motherboard PCI1 A B C D E - - - - - PCI2 - - - - - PCI3 - - - - - PCIEX16_1 shared - - - - PCIEX1_1 shared - - - - PCIEX1_2 - shared - - - PCIEX1_3 - - shared - - On-board ESATA, SATA_RAID (JMB363) - shared - - - On-board PRI_IDE - shared - - - On-board HD Audio - - - - - On-board GbLAN shared - - - - USB 2.0 EHCI#1 - - - - - USB12 OBCI#1 - - - - USB34 OBCI#2 - - - shared - USB56 OBCI#3 - - shared - - USB 2.0 EHCI#1 - - shared - - USB78 OBCI#4 - shared - - - USB910 OBCI#5 shared - - - - SATA1, SATA2 (ICH8) - - - shared - SATA3, SATA4 (ICH8) - - - shared - F G H used - - - shared - - - shared - - - - - - - - - - - - - - - - - - - shared - - - - - shared - - shared - - - - - - - - - - - - - - - - - - - - - 2-20 Chapter 2: Hardware information