3 interrupt assignments, 4 pci express x16 slot, Standard interrupt assignments – Asus KFN4-DRE User Manual
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ASUS KFN4-DRE
2-15
2.5.3 Interrupt assignments
Standard interrupt assignments
* 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
4
12
Communications Port (COM1)*
5
13
IRQ holder for PCI steering*
6
14
Floppy Disk Controller
7
15
Printer Port (LPT1)*
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
Primary IDE Channel
15
10
Secondary IDE Channel
2.5.4 PCI Express x16 slot
This motherboard supports PCI
Express x16 graphic cards that
comply with the PCI Express
specifications. The figure shows a
graphics card installed on the PCI
Express x16 slot.