2.5.3Interrupt assignments

Standard Interrupt assignments

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

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

2.5.4PCI Express x16 slot (x16 link)

The onboard PCIE 3 and 5 provide one x16 Gen3 link to CPU2; The onboard PCIE 4 provide one x16 Gen3 link to CPU1; The onboard PCIE 2 provide one x16 Gen3 link to CPU1 (Auto switch to x8 link if PCIE 1 is occupied). These slots support VGA cards and various server class high performance add-on cards.

2.5.5PCI Express x16 slot (x8 link)

The onboard PCIE 6 provides one x8 link to CPU2; The onboard PCIE 1 slots provide one x8 Gen3 link to CPU1 (MIO supported.). These slot supports VGA Cards and various server class high performance add-on cards.

2.5.6PIKE slots

The PIKE slot allows you to choose and change your preferred SAS solution easily. Install an optional ASUS PIKE RAID card based on your needs.

ASUS Z9PE-D16 Series

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