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Maintenance & Service Guide
Presario 1900 Series
Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925

 | Home Page  | Notice | Preface | Product Description  | Troubleshooting   
Illustrated Parts Catalog
Removal & Replacement Procedures  | Specifications
Pin Assignments
| Battery Pack Operations


System Interrupts

IRQ Device(s)
0 System timer
1 Standard 101/102-Key or Microsoft Natural Keyboard
2 Programmable interrupt controller
3 Ambit Modem
4 Communications Port (COM1)
5 NMA2 Audio Controller
6 Standard Floppy Disk Controller
7 Printer Port (LPT1)
8 System CMOS/real time clock
9 Intel 82371AB/EB PCI to USB Universal Host Controller
10 PCI Fast Ethernet DEC 21143 Based Adapter
11 Texas Instruments PCI-1225 CardBus Controller

NeoMagic NMG5 Graphics Controller

12 PS/2 Compatible Mouse Port
13 Numeric data processor
14 Intel 82371AB/EB PCI Bus Master IDE Controller
15 Intel 82371AB/EB PCI Bus Master IDE Controller

 

 

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