2.5.3Interrupt assignments

IRQ

Priority

Standard function

0

1

System timer

1

2

Keyboard controller

2

–

Re-direct to IRQ#9

3

11

IRQ holder for PCI steering*

4

12

Communications port (COM1)*

5

13

IRQ holder for PCI steering*

6

14

Floppy disk controller

7

15

IRQ holder for PCI steering*

8

3

System CMOS/Real Time Clock

9

4

IRQ holder for PCI steering*

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

IRQ holder for PCI steering*

15

10

IRQ holder for PCI steering*

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

2.5.4.PCI Express x1 MIO slot

This motherboard supports PCI Express x1 audio cards, network cards, SCSI cards and other cards that comply with the PCI Express specifications. This slot also supports the MIO (Media Input Output) function. Install the bundled audio card on this slot only, otherwise the audio card may not work properly. Refer to the figure on the next page for the location of the slot.

2.5.5PCI Express 2.0 x16 slots (red)

This motherboard has two PCI Express 2.0 x16 slots that support PCI Express

2.0x16 graphic cards complying with the PCI Express specifications. Refer to the figure on the next page for the location of the slots.

2.5.6Universal PCI Express x16 slot (white)

This motherboard also supports one Universal PCI Express x16 slot with a maximum speed of x8 link. The operating frequency of this slot change depending on the type of PCI Express card you install. Refer to the figure on the next page for the location of the slot.

ASUS Z7S WS

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