Irq Assignment Conflicts - Dell PowerEdge C1100 Hardware Owner's Manual

13 Replace processor 1 with processor 2. See "Installing the Processor" on
page 59.
14 Repeat step 9 through step 11.
If you have tested both the processors and the problem persists, the system
board is faulty. See "Getting Help" on page 119.

IRQ Assignment Conflicts

Most PCI devices can share an IRQ with another device, but they cannot use
an IRQ simultaneously. To avoid this type of conflict, see the documentation
for each PCI device for specific IRQ requirements.
Table 4-1. Assignment Specific IRQ Requirements
IRQ Line
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
Assignment
System timer
Keyboard controller IRQ9
Interrupt controller
1 to enable IRQ8
through IRQ15
Default for COM2
Default for COM1
Remote access
controller
Reserved
Reserved
IRQ Line
IRQ8
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
Troubleshooting Your System
Assignment
Real-time clock
ACPI functions
(used for power
management)
Available
Available
Available
Math coprocessor
IDE CD drive
controller
Available
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