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Dell PowerEdge 6100/200 System Service Manual
Interrupt Assignments
Table 1-4. SCSI Backplane Board Connectors
Connector
Description
CONTROL PANEL
Control panel connector
POWER
Power input connector
SCSI
Ultra/Wide SCSI cable connector
SERVER MANAGEMENT
Server-management bus connector
SLOTnID=n
SCA-2 compatible SCSI connectors
Table 1-5. Interrupt Assignments
IRQ Line
Used/Available
IRQ0
Used by the system timer
IRQ1
Used by the keyboard controller to indicate that keyboard’s
output buffer is full
IRQ2
Used by interrupt controller 1 to enable IRQ8 through IRQ15
IRQ3
Used by serial port 2
IRQ4
Used by serial port 1
IRQ5
Available for use by expansion card unless this IRQ line is used by
secondary parallel port
IRQ6
Used by the diskette drive controller
IRQ7
Used by the parallel port
IRQ8
Used by the RTC
IRQ9
Available for use by expansion card
IRQ10
Available for use by expansion card
IRQ11
Available for use by expansion card
IRQ12
Used by the mouse port
IRQ13
Used by the math coprocessor to indicate coprocessor error
IRQ14
Available for use by expansion card
IRQ15
Available for use by expansion card