3 interrupt assignments, 4 pci express x16 slot (x16 link), Interrupt assignments -19 – Asus Z9PH-D16 User Manual
Page 37: Pci express x16 slot (x16 link) -19, Standard interrupt assignments
ASUS Z9PH-D16 Series
2-19
* These IRQs are usually available for ISA or PCI devices.
2.5.3
Interrupt assignments
Standard Interrupt assignments
IRQ
Priority Standard function
0
1
System Timer
1
2
Keyboard Controller
2
-
Programmable Interrupt
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
PCIEx16 slot (x16 link)
2.5.4
PCI Express x16 slot (x16 link)
The onboard PCI Express x16 slot provides x16 link to the Intel
®
Xeon E5-2600
family processor. This slot supports VGA cards and various server class high
performance add-on cards.
When installing the motherboard to a 1U/2U rackmount server system, first
install the expansion card using an optional PCIe x16 riser card, then install the
riser card along with the expansion card to the onboard PCI Express x16 slot.