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Irq usage – Gateway ALR 7300 User Manual

Page 122

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112 Maintaining and Troubleshooting the Gateway ALR 7300 Server

IRQ usage

The following table lists the Interrupt Request Lines (IRQs) that the system
typically uses and which ones are available for use by add-on devices.

IRQ

Resource

NMI

0

System timer

1

Keyboard

2

Cascade

3

Serial port 2 (COM2)

4

Serial port 1 (COM1)

5

Secondary parallel port (LPT2)

6

Diskette controller

7

Primary parallel port (LPT1)

8

Real time clock (RTC)

9

Cascade redirect

10

Available

11

Available

12

PS/2 mouse port

13

Math coprocessor

14

Primary hard disk

15

Secondary hard disk

4075.book Page 112 Friday, April 2, 1999 9:26 AM