Table 4 – Dell PowerEdge 2550 User Manual
Page 40

Table 4-1. IRQ Line Assignment Defaults
Back to Contents Page
IRQ Line Used By/Available
IRQ0
Used by the system timer
IRQ1
Used by the keyboard to signal that the output buffer is full
IRQ2
Used by interrupt controller 2
IRQ3
Used by serial port 2 (COM2 and COM4) or a PCI device
IRQ4
Used by serial port 1 (COM1 and COM3) or a PCI device
IRQ5
Available unless used by a secondary parallel port
IRQ6
Used by the diskette drive controller
IRQ7
Used by the primary parallel port or a PCI device
IRQ8
Used by the RTC
IRQ9
Used by ACPI
IRQ10
Available
IRQ11
Available
IRQ12
Used by the PS/2 mouse port, unless the mouse option is disabled in System Setup program
IRQ13
Reserved for floating-point errors
IRQ14
Available
IRQ15
Used by ESM
NOTE: For the full name of an abbreviation or acronym used in this table, see "
Abbreviations and Acronyms
."
- PowerEdge RAID Controller H700 (200 pages)
- PowerEdge RAID Controller H700 (178 pages)
- PowerEdge RAID Controller H700 (56 pages)
- PowerVault TL2000 (2 pages)
- PowerVault TL4000 (2 pages)
- PowerVault TL2000 (176 pages)
- PowerVault TL2000 (16 pages)
- PowerVault TL2000 (3 pages)
- PowerVault TL2000 (116 pages)
- PowerVault 130T DLT (Tape Library) (49 pages)
- PowerVault TL2000 (1 page)
- PowerVault 110T DLT VS80 (Tape Drive) (49 pages)
- PowerVault TL2000 (22 pages)
- PowerVault TL4000 (306 pages)
- PowerEdge 800 (2 pages)
- PowerEdge 800 (27 pages)
- PowerEdge 800 (28 pages)
- PowerEdge 800 (58 pages)
- PowerEdge 800 (87 pages)
- PowerEdge 800 (24 pages)
- PowerEdge 800 (82 pages)
- PowerEdge 6400 (86 pages)
- PowerVault 124T (55 pages)
- PowerVault 124T (73 pages)
- PowerVault 124T (65 pages)
- PowerVault 124T (4 pages)
- PowerVault 124T (79 pages)
- PowerVault 124T (2 pages)
- PowerVault 124T (64 pages)
- PowerVault 124T (56 pages)
- PowerVault 124T (66 pages)
- PowerVault 124T (57 pages)
- PowerVault 110T LTO (Tape Drive) (28 pages)
- PowerVault TL4000 (22 pages)
- PowerVault TL4000 (3 pages)
- PowerVault TL4000 (176 pages)
- PowerVault TL4000 (2 pages)
- PowerVault TL4000 (16 pages)
- PowerVault TL4000 (116 pages)
- PowerVault TL4000 (1 page)
- PowerVault TL4000 (66 pages)
- PowerEdge RAID Controller 6i (120 pages)
- PowerEdge RAID Controller 6i (156 pages)
- PowerVault 715N (Rackmount NAS Appliance) (105 pages)
- PowerVault 715N (Rackmount NAS Appliance) (4 pages)