User Manual

ASUS Z9PA-D8 2-17
* 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 PCIE2 (slot location 5) and 4 (slot location 3) slots provides one x16
Gen3 link to CPU1 and auto switches to x8 link if PCIE1/3 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 PCIE1 (slot location 6), 2 (slot location 5), 3 (slot location 4) and 4
(slot location 3) slots provide one x8 Gen3 link to CPU1. These slots support VGA
Cards and various server class high performance add-on cards.
2.5.6 PCI Express x8 slot (x4 link)
The onboard PCIE5 (slot location 2) provide one x4 Gen2 link to Intel C602 PCH.
This slot support various server class high performance add-on cards.