United States December 31, 2002
Maintenance and Service Guide
Compaq Presario 7300 Series Computers
Product Description Troubleshooting Illustrated Parts Catalog
Home Removal & Replacement Jumper & Switch Information Specifications
Power supply
Diskette
drive
Hard drives
System
CD and DVD
drive
Mouse
Fax/modem
SPECIFICATIONS
System Specifications
General system specifications
System interrupts
System I/O
System memory
System DMA
General System Specifications
Dimensions
Height
24.51 in
Length
20.13 in
Width
12.13 in
Weight
lbs.
Input
Requirements
Nominal Line Voltage Information not Available
Range Line Voltage Information not Available
Line Frequency Information not Available
Input Current Information not Available
Power (watts)
Information not Available
Steady State Information not Available
Environmental Requirements
Temperature
Operating 50° to 95° F 10°
to
35°
C
Shipping -4° to 140° F -20°
to
60°
C
Humidity (noncondensing)
Operating 8% to 90% 8%
to
90%
Nonoperating 5% to 95% 5%
to
95%
Maximum Altitude (unpressurized)
Operating 10,000 ft 3048
m
Nonoperating 30,000 ft 9144
m
*This number will increase if more bays/slots are occupied.
System Interrupts
Hardware IRQ System Function
IRQ 0 Refresh Timer
IRQ 1 Keyboard
IRQ 2 Interrupt Controller Cascade
IRQ 3 Controllerless modem (COM 2) shared data/fax
IRQ 4 Serial Port A (COM 1)
IRQ 5 Entertainment Audio*^
IRQ 6 Diskette Drive
IRQ 7 Parallel Port (LPT 1)*
IRQ 8 Real-Time Clock
IRQ 9 Available
IRQ 10 ISDN Modem if present*
IRQ 11 PCI Bus shared with Video, USB, DVD
IRQ 12 Mouse
IRQ 13 Numeric Coprocessor
IRQ 14 Disk Drive (Primary IDE)
IRQ 15 Disk Drive (Secondary IDE)
^
Audio must use this setting for game compatibility. Used for audio, MPU-401, and
volume control.
*Default configuration; other configurations are as follows:
Modem - IRQ 4, 10, 11, none
Parallel Port - IRQ 3, 4, 5, 9, 10, none
System Audio - IRQ 7, 9, 10, none
Serial Port - IRQ 3, 5, 7, 9, 10, 12, none
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