3 interrupt assignments, 4 pci express x16 slot (x16 link), 5 pci express x8 slot (x8 link) – Asus Z9PR-D16 User Manual
Page 38: Interrupt assignments -18, Pci express x16 slot (x16 link) -18, Pci express x8 slot (x8 link) -18, Standard interrupt assignments
2-18
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 PCIE6 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, 5, and 7 slots provide one x8 Gen3 link to CPU2. These
slots support VGA Cards and various server class high performance add-on cards.