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ASUS SABERTOOTH X58 2-19
Chapter 2
2.5.3 Interrupt assignments
Standard interrupt assignments
* These IRQs are usually available for PCI devices.
IRQ Priority Standard function
0
1 System Timer
1 2 Keyboard Controller
2 – Redirect to IRQ#9
4 12 Communications Port (COM1)*
5 13 IRQ Holder for PCI Steering*
6 14 Reserved
7 15 Reserved
8 3 System CMOS/Real Time Clock
9 4 IRQ Holder for PCI Steering*
10 5 IRQ Holder for PCI Steering*
11 6 IRQ Holder for PCI Steering*
12 7 Reserved
13 8 Numeric Data Processor
14 9 Primary IDE Channel
ICH
A B C D E F G H
PCIE16_3 shared –
– – – – – –
PCIE1_1
– shared
– – – – – –
PCIE1_2
–
– – shared – – – –
LAN1 – –
– shared
– – – –
PCI_1 shared – – – – – – –
USB_1 – – – – – – – shared
USB_2 – – – shared – – – –
USB_3 – – shared – – – – –
USB_4 shared – – – – – – –
USB_5 – – – – – shared – –
USB_6
shared
– –
–
– – – –
USB 2.0_1 – – – – – – – shared
USB 2.0_2 – – shared – – – – –
SATA_1 – –
shared
–
–
– – –
SATA _2 – – – – shared – – –
Audio – – – – – – shared –
IRQ assignments for this motherboard
IOH
24 25 26 27 28 29 30 31
NEC USB 3.0
– – – – – shared – –
Marvell 9128 – – – – shared – – –
PCIE16_1 shared – – – – – – –
PCIE16_2 – – – – – – shared –