Lenovo ThinkPad i Series 1157 ThinkPad 570 On-line User's Guide - Page 77

Default IRQ assignments, System resources and IRQs

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Default IRQ assignments System resources and IRQs Default IRQ assignments The following table shows the default system resource assigned for each IRQ: IRQ value 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Assignment Timer Keyboard Cascade Not used Not used Audio (set by device driver) Diskette Parallel port Real-time clock Not used Not used PCI Auxiliary device Math co-processor Primary IDE Secondary IDE (in the ThinkPad 570 UltraBase) System resources and IRQs The following table shows the available system resources for your computer and the port replicators. The values in parentheses are alternate values that are selectable from the ThinkPad Configuration program or from an application program. The default values are highlighted in boldface. Chapter 6. Resolving system resource conflicts 71

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Default IRQ assignments
System resources and IRQs
Default IRQ assignments
The following table shows the default system resource assigned for
each IRQ:
IRQ value
Assignment
0
Timer
1
Keyboard
2
Cascade
3
Not used
4
Not used
5
Audio (set by device driver)
6
Diskette
7
Parallel port
8
Real-time clock
9
Not used
10
Not used
11
PCI
12
Auxiliary device
13
Math co-processor
14
Primary IDE
15
Secondary IDE (in the ThinkPad 570 UltraBase)
System resources and IRQs
The following table shows the available system resources for your
computer and the port replicators.
The values in parentheses are
alternate values that are selectable from the ThinkPad Configuration
program or from an application program.
The default values are
highlighted in
boldface
.
Chapter 6.
Resolving system resource conflicts
71