Irqs, Dmas, And I/O Addresses Used By Your Pc - HP Vectra VEi7 Supplementary Manual

NOTE

IRQs, DMAs, and I/O Addresses Used by Your PC

IRQs used by PC IRQ0
IRQ1
The IRQ, DMA, and IRQ2
I/O address IRQ3
mappings shown
IRQ4
here are for a PC IRQ5
with a basic
IRQ6
configuration. The IRQ7
resources used by IRQ8
your PC may vary, IRQ9
depending upon
which accessory IRQ10
boards are bundled
with the PC. IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
DMAs DMA 0
used by PC DMA 1
DMA 2
DMA 3
DMA 4
DMA 5
DMA 6
DMA 7
An audio card will use at least one IRQ and one DMA.
A LAN card will use at least one IRQ.
A video card will use one IRQ.
IRQs, DMAs, and I/O Addresses Used by Your PC
system timer
keyboard
system cascade
free if not used for serial port
used by serial port if enabled
reserved for audio
floppy disk controller
used by parallel port if enabled
real-time clock
available for PCI devices, if not used by ISA board or USB
port
available for PCI devices, if not used by ISA board or USB
port
available for PCI devices, if not used by ISA board or USB
port (VEi 8 models); reserved for USB on VEi 7 models
mouse
co-processor
integrated IDE hard disk drive controller
free if not used by second IDE controller
free
free if not used for parallel port or audio in Setup
floppy disk controller
free if not used for parallel port or audio in Setup
used to cascade DMA channels 0-3
free
free
free
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