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