Irqs, Dmas, And I/O Addresses Used By Your Pc - HP Vectra XM5 4 User Manual

Typical Power Consumption/Availability for ISA Accessory Slots
+5 V 4.5A limit per slot (limited by system board)
+ 12 V 1.5A limit per slot (limited by system board)
-5 V 0.1A total power limit (limited by power supply)
-12 V 0.3A total power limit (limited by power supply)
Typical Power Consumption/Availability for PCI Accessory Slots
+5 V 4.5A maximum per slot
+ 12 V 0.5A maximum per slot
-12 V 0.1A maximum per slot
There is a maximum per-slot limit of 25 W between all supply rails.

IRQS, DMAS, AND I/O ADDRESSES USED BY YOUR PC

IRQs used by PC
The IRQ, DMA and I/O address
mappings shown here are for a
PC with a basic configuration. The
resources used by your PC may
vary, depending upon which
accessory boards are bundled
with the PC. For information on
current use of IRQs, DMAs,a nd
I/O addressed by your PC, type
MSD at the MS-DOS prompt
(Windows 3.11), or use the
Device Manager (Windows 95)
DMAs used by PC
I/O Addressed used by PC
IRQ0 system timer
IRQ1 keyboard
IRQ2 system cascade
IRQ3 free if not used for serial port
IRQ4 free if not used for serial port
IRQ5 free if not used for parallel port
IRQ6 flexible disk drive controller
IRQ7 free if not used for parallel port
IRQ8 real-time clock
IRQ9 available for PCI devices, if not used by ISA board
IRQ10 available for PCI devices, if not used by ISA board
IRQ11 available for PCI devices, if not used by ISA board
IRQ12 mouse
IRQ13 processor
IRQ14 integrated IDE hard disk drive controller
IRQ15 free if not used by second IDE controller
DMA0 free
DMA1 free if not used for parallel port in Setup
DMA2 flexible disk drive controller
DMA3 free if not used for parallel port in Setup
DMA4 used to cascade DMA channels 0-3
DMA5 free
DMA6 free
DMA7 free
170h 177h, 376h IDE secondary channel
1F0h 1F7h, 3F6h IDE primary channel
278h 27Fh parallel port
2E8h 2EFh serial port
2F8h 2FFh serial port
370h 371h integrated I/O controller
378h 37Fh parallel port
3B0h 3DFh integrated video graphics controller
3E8h 3EFh serial port
3F0h 3F5h, 3F7h integrated flexible disk controller
3F8h 3FFh serial port
496h 497h HP reserved
678h 67Bh parallel port if ECP mode is selected
778h 77Bh parallel port if ECP mode is selected