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Standard interrupt assignments
IRQ
Standard function
0
Standard timer
1
Keyboard
2
High precision event timer
3
IRQ holder for PCI steering
4
COM1
5
IRQ holder for PCI steering
6
Floppy controller
7
Printer port
8
High precision event timer
9
AMD ACPI-Compliant system
10
IRQ holder for PCI steering
11
IRQ holder for PCI steering
12
Microsoft PS/2 mouse
13
Numeric data processor
14
Primary IDE
15
Slave IDE
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
LNKA LNKB LN0A LN2A
PCI slot1
shared
PCI slot2
PCI EX1 Slot
PCI EX16 slot
Onboard USB1.1
(OHCI)
Onboard USB 1.1
(OHCI)
Onboard USB2.0
(EHCI)
Onboard USB2.0
(EHCI)
Onboard IDE
controller
Onboard SATA
controller
Onboard SMBus
controller
Onboard Azalia
controller
Onboard LAN
8111B
Onboard PMU
device
IXVE Bus Bridge
Onboard VGA
When using PCI cards on shared slots, ensure that the drivers support "Share
IRQ" or that the cards do not need IRQ assignments. Otherwise, conflicts will
arise between the two PCI groups, making the system unstable and the card
inoperable.
2-14
LATA
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UB12
UB11
LUB2 LUB0 LPMU LSMB LMAC LSA0
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Chapter 2: Basic installation
LAZA SGRU
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