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Detailed hardware description
Issue G
125
APIC: Advanced Programmable Interrupt Controller
Use of the APIC interrupt mode is enabled using the field
APIC - IO APIC Mode
, available
from the
ACPI Control
sub-menu in the BIOS. See page
for further details.
IRQ
Interrupt source
0
Cascade from 8259
1 Keyboard
controller
2
8259 counter 0
3
Serial port COM2
4
Serial port COM1
5 SMBus
controller
6
Floppy disk controller
7 Configurable
8
High Performance Event Timer/RTC
9
ACPI Subsystem interrupt
10 Configurable
11 Configurable
12
PS/2 compatible mouse
13 Coprocessor
error
14 Primary
IDE
controller
15
Configurable, reserved for the Compact Flash IDE interface when used
16
PCI PIRQ[A]#
Connections: VGA controller, PCI UART and USB UHCI controller
17
PCI PIRQ[B]#
Connections: AC97 Audio CODEC controller
18
PCI PIRQ[C]#
Connections: IEEE1394 Host controller, USB UHCI controller
19
PCI PIRQ[D]#
Connections: Cardbus controller, USB UHCI controller
20
PCI PIRQ[E]#
Connections: 82562ET Ethernet controller, PCI expansion slot
21
PCI PIRQ[F]#
Connections: PCI expansion slot
22
PCI PIRQ[G]#
Connections: 82541GI/82551QM Ethernet controller, PCI expansion slot
23
PCI PIRQ[H]#
Connections: USB2.0 EHCI Controller, PCI expansion slot