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 I/O Address
I/O Address System Function (Shipping Configuration) 0000 – 000F Direct Memory Access Controller 0020 – 0021 Programmable interrupt controller 0040 – 0043 System timer 0060 – 0060 Standard 101/102-Key or Microsoft Natural Keyboard 0061 – 0061 System speaker 0064 – 0064 Standard 101/102-Key or Microsoft Natural Keyboard 0070 – 0071 System CMOS/real time clock 0081 – 008F Direct memory access controller 00A0 – 00A1 Programmable interrupt controller 00C0 – 00DF Direct memory access controller 00E0 – 00E1 Motherboard Resources 00F0 – 00FF Numeric Data Processor 0170 – 0177 Intel 82371AB/EB PCI Bus Master IDE Controller 01F0 – 01F7 Intel 82371AB/EB PCI Bus Master IDE Controller 0201 – 0201 Gameport Joystick 0274 – 0277 IO read data port for ISA Plug and Play enumerator 0376 – 0376 Intel 82371AB/EB PCI Bus Master IDE Controller 0378 – 037F Printer Port (LPT1) 03B0 – 03BB NeoMagic NMG5 Graphics Controller 03C0 – 03DF NeoMagic NMG5 Graphics Controller 03F0 – 03F5 Standard Floppy Disk Controller 03F6 – 03F6 Intel 82371AB/EB PCI Bus Master IDE Controller 03F7 – 03F7 Standard Floppy Disk Controller 03F8 – 03FF Communications Port (COM1) 03D0 – 04D1 Motherboard resources 0CF8 – 0CFF PCI bus 1000 – 103F Motherboard resources 1040 – 104F Motherboard resources 1050 – 105F Intel 82371AB/EB PCI Bus Master IDE Controller 1060 – 107F Intel 82371AB/EB PCI to USB Universal Host Controller 1080 – 10FF PCI Fast Ethernet DEC 21143 Based Adapter 1400 – 14FF PCI Communication Device 1800 – 1807 PCI Communication Device
System Memory Catalog
Memory Address Device 00000000 – 0009FFFF System board extension for PnP BIOS 000A0000 – 000AFFFF NeoMagic NMG5 Graphics Controller 000B0000 – 000BFFFF NeoMagic NMG5 Graphics Controller 000C0000 – 000CBFFF NeoMagic NMG5 Graphics Controller 000E4000 – 000FFFFF System board extension for PnP BIOS 00100000 – 03FFFFFF System board extension for PnP BIOS 04000000 – 04000FFF Texas Instruments PCI-1225 CardBus Controller 04001000 – 04001FFF Texas Instruments PCI-1225 CardBus Controller F4000000 – F40000FF PCI Communication Device F4000400 – F40007FF PCI Fast Ethernet DEC 21143 Based Adapter F4100000 – F41FFFFF NeoMagic NMG5 Graphics Controller F4100000 – F47FFFFF Intel 82443BX Pentium(r) II Processor to AGP controller F4200000 – F42FFFFF PCI Multimedia Audio Device F4400000 – F47FFFFF NeoMagic NMG5 Graphics Controller F4C00000 – F4FFFFFF PCI Multimedia Audio Device F4C00000 – F5FFFFFF Intel 82443BX Pentium(r) II Processor to AGP controller F5000000 – F5FFFFFF NeoMagic NMG5 Graphics Controller F8000000 – FBFFFFFF Intel 82443BX Pentium(r) II Processor to PCI bridge (with GART support) FFF80000 – FFFFFFFF Motherboard resources
Display Information
12.1" TFT Display
U.S. Metric 12.1" TFT Dimensions
Height
Depth
Width
1.1"
11.6"
9.2"
234mm
294.7mm
29mm13.3" TFT Dimensions
Height
Depth
Width
1.2"
11.6"
9.2"
234mm
294.7mm
30.5mm
Memory Expansion (Not Applicable in this Form Factor)
Diskette Drive or LS-120 Drive
Storage Drives
3.5" Drive
LS-120 Drive
Capacity per Diskette (High/Low) Low 720KB
High 1.44MBLow 720KB
High 120MBDiskette Size 3.5"
3.5" Number of LED Indicators (Read/Write) 1 1 Number of Drives Supported 1 1 Drive Rotation (rpm) 360 720 Transfer Rate (Kbps/Sec) Low 31
High 62Low 313-565
High 313-565Bytes per Sector 512 512 Sectors per Track (High/Low) Low 9
High 18Low 9
High 93Access Times
Track-to-Track (ms)
Head Setting (ms)
3ms
15ms
25ms (1 cycle seek)
20ms (1 cycle seek)
Cylinders (High/Low) Not Available Low 80
High 1736Number of Read/Write Heads 2 2
