Asus z9pa-u8 [35/188] Interrupt assignments

ASUS Z9PA-U8 2-15

* These IRQs are usually available for ISA or PCI devices.

IRQ Priority Standard function

0 1 System Timer

1 2 Keyboard Controller

2 - Programmable Interrupt

3* 11 Communications Port (COM2)

4* 12 Communications Port (COM1)

5* 13 --

6 14 Floppy Disk Controller

7* 15 --

8 3 System CMOS/Real Time Clock

9* 4 ACPI Mode when used

10* 5 IRQ Holder for PCI Steering

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

2.5.3 Interrupt assignments

Standard Interrupt assignments

2.5.4 PCI Express x16 slot (x16 link)

The onboard PCIE4/6 slot provides one x16 Gen3 link to CPU1 and auto switches

to x8 link if PCIE3/5 is occupied. This slot supports VGA cards and various server

class high performance add-on cards.

2.5.5 PCI Express x8 slot (x8 link)

The onboard PCIE 3 and 5 slots provide one x8 Gen3 link to CPU1. These slots

support VGA Cards and various server class high performance add-on cards.