3 interrupt assignments, 4 pci express x16 slot (x16 link), 5 pci express x8 slot (x8 link) – Asus Z9NR-D12 User Manual
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2-16
Chapter 2: Hardware information
* 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 PCIE 2 slot provides one x16 Gen3 link to CPU1. 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, 4, and 5 slot provide one x8 Gen3 link to CPU2. 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 PCIE 1 slot provide one x4 Gen3 link to CPU1. This slot supports
VGA Cards and various server class high performance add-on cards.
2.5.7
PCI Express x4 slot (x2 link)
The onboard PCIE 6 slot provides one x2 Gen2 link to PCH. This slot supports VGA
Cards and various server class high performance add-on cards.
2.5.8
PCI Express x4 slot (x1 link)
The onboard PCIE 7 slot provides one x1 Gen2 link to PCH. This slot supports VGA
Cards and various server class high performance add-on cards.