Specifications
Maintenance and Service Guide
7–15
IRQ11*
Intel 82801FB/FBM USB Universal Host Controller - 2659
Intel 82801FB/FBM USB Universal Host Controller - 265A
Broadcom NetXtreme Gigabit Ethernet #2
SoundMAX Integrated Digital Audio
IRQ12
Synaptics PS/2 TouchPad
IRQ13
Numeric data processor
IRQ14
Primary IDE channel
IRQ15*
Not assigned
*Default configuration; audio possible configurations are IRQ5, IRQ7, IRQ9,
IRQ10, or none.
✎
PC Cards may assert IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, or
IRQ15. Either the infrared or the serial port may assert IRQ3 or IRQ4.
Table 7-11
System Interrupts
(Continued)
Table 7-12
System I/O Addresses
I/O Address
(hex)
System Function
(shipping configuration)
000 - 00F
DMA controller no.1
010 - 01F
System board resources
020 - 021
Interrupt controller no.1
022 - 023
Unused
024 - 03F
System board resources
040 - 043
System timer
044 - 04D
Unused
04E - 04F
System board resources
050 - 053
System board resources