DELL 2000 Reference Guide

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Windows 98 IRQ conflicts occur if a device either is not detected during the 
Windows 98 Plug and Play setup or is detected but incorrectly configured. To check 
for conflicts, perform the following steps:

1.

Click the Start button, point to Settings, and click Control Panel. 

2.

In the Control Panel, double-click System. 

3.

Click the Device Manager tab.

4.

In the Device Manager list, check for conflicts with the other devices. 

Conflicts are indicated by a yellow exclamation point (!) beside the conflicting 
device or a red X if the device has been disabled.

5.

Double-click any conflicting device listed to bring up the Properties window so 
you can determine what needs to be reconfigured or removed from the Device 
Manager. Resolve these conflicts before checking specific devices.

6.

Double-click the malfunctioning device type in the Device Manager list. 

7.

Double-click the icon for the specific device in the expanded list.

The Properties window appears. 

8.

If there is an IRQ conflict, the Device status area in the Properties window 
reports what expansion cards or devices are sharing the device's IRQ. Resolve 
the IRQ conflicts.

IRQ9

SCI in ACPI mode

IRQ10

PCI IRQA, B, C, D

IRQ11

Available

IRQ12

Reserved; generated by the keyboard controller to indicate that 
the output buffer of the touch pad or the external PS/2 mouse is 
full

IRQ13

Reserved; generated by the math coprocessor

IRQ14

Reserved; generated by the hard-disk drive to indicate that the 
drive requires the attention of the microprocessor

IRQ15

Reserved; generated by CD-ROM 

media bay to indicate that the drive requires the atten-
tion of the microprocessor

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