Compaq Presario 1900 - Notebook PC Maintenance And Service Manual page 9

Before You Begin
Removal Sequence
Product Description
Specifications
System I/O Address
I/O Address
0000 - 000F
0020 - 0021
0040 - 0043
0060 - 0060
0061 - 0061
0064 - 0064
0070 - 0071
0081 - 008F
00A0 - 00A1
00C0 - 00DF
00E0 - 00E1
00F0 - 00FF
0170 - 0177
01F0 - 01F7
0201 - 0201
0274 - 0277
0376 - 0376
0378 - 037F
03B0 - 03BB
03C0 - 03DF
03F0 - 03F5
03F6 - 03F6
03F7 - 03F7
03F8 - 03FF
03D0 - 04D1
0CF8 - 0CFF
1000 - 103F
1040 - 104F
1050 - 105F
1060 - 107F
1080 - 10FF
1400 - 14FF
1800 - 1807
System Memory Catalog
Memory Address
00000000 - 0009FFFF
000A0000 - 000AFFFF
000B0000 - 000BFFFF
000C0000 - 000CBFFF
000E4000 - 000FFFFF
00100000 - 03FFFFFF
04000000 - 04000FFF
04001000 - 04001FFF
F4000000 - F40000FF
F4000400 - F40007FF
F4100000 - F41FFFFF
F4100000 - F47FFFFF
F4200000 - F42FFFFF
F4400000 - F47FFFFF
F4C00000 - F4FFFFFF
F4C00000 - F5FFFFFF
F5000000 - F5FFFFFF
F8000000 - FBFFFFFF
FFF80000 - FFFFFFFF
Display Information
12.1 in TFT
Dimensions
Height
Depth
Width
13.3 in TFT
Dimensions
Height
Depth
Width
Diskette Drive
Capacity per Diskette
(High/Low)
Diskette Size
Number of LED Indicators
(Read/Write)
Number of Drives Supported
Drive Rotation (rpm)
Transfer Rate (Kbps/Sec)
Bytes per Sector
Sectors per Track (High/Low)
Access Times
Track-to-Track (ms)
Head Setting (ms)
Cylinders (High/Low)
Number of Read/Write Heads
Hard Drive
Models
Capacity Per Drive
Drive Type
Logical Configuration
Cylinders
Heads
Sectors per Track
Bytes per Sector
Seek Times
(Typical, including settling
in ms)
Single Track
Full Stroke
Transfer Rate
At interface
Models
Capacity Per Drive
Drive Type
Logical Configuration
Cylinders
Heads
Sectors per Track
Bytes per Sector
Seek Times
(Typical, including settling
in ms)
Single Track
Full Stroke
Transfer Rate
At interface
Models
Capacity Per Drive
Drive Type
Logical Configuration
Cylinders
Heads
Sectors per Track
Bytes per Sector
Seek Times
(Typical, including settling
in ms)
Single Track
Full Stroke
Transfer Rate
At interface
CD ROM or DVD Drive
Models
Dimensions
Width
Height
Depth
Weight
Rotational
Speed
Typical
Transfer
Rate
Sustained
Data
Transfer
Rate
Access
Time
Average
Random
Access
Time
Spin Up
Time
Data Buffer
Capacity
Maintenance & Service Guide
Presario 1900 Series
Models: 1900T, 1905, 1906, 1910, 1915, 1919, 1920,
1922, 1925, 1926, 1927, 1928, 1929, and 1930
Troubleshooting
Pin Assignments
System Function (Shipping Configuration)
Direct Memory Access Controller
Programmable Interrupt Controller
System Timer
Standard 101/102-Key or Microsoft Natural Keyboard
System Speaker
Standard 101/102-Key or Microsoft Natural Keyboard
System CMOS/Real Time Clock
Direct Memory Access Controller
Programmable Interrupt Controller
Direct Memory Access Controller
Motherboard Resources
Numeric Data Processor
Intel 82371AB/EB PCI Bus Master IDE Controller
Intel 82371AB/EB PCI Bus Master IDE Controller
Gameport Joystick
IO Read Data Port for ISA Plug and Play Enumerator
Intel 82371AB/EB PCI Bus Master IDE Controller
Printer Port (LPT1)
NeoMagic NMG5 Graphics Controller
NeoMagic NMG5 Graphics Controller
Standard Floppy Disk Controller
Intel 82371AB/EB PCI Bus Master IDE Controller
Standard Floppy Disk Controller
Communications Port (COM1)
Motherboard Resources
PCI Bus
Motherboard Resources
Motherboard Resources
Intel 82371AB/EB PCI Bus Master IDE Controller
Intel 82371AB/EB PCI to USB Universal Host Controller
PCI Fast Ethernet DEC 21143 Based Adapter
PCI Communication Device
PCI Communication Device
Device
System board extension for PnP BIOS
NeoMagic NMG5 Graphics Controller
NeoMagic NMG5 Graphics Controller
NeoMagic NMG5 Graphics Controller
System Board Extension for PnP BIOS
System Board Extension for PnP BIOS
Texas Instruments PCI-1225 CardBus Controller
Texas Instruments PCI-1225 CardBus Controller
PCI Communication Device
PCI Fast Ethernet DEC 21143 Based Adapter
NeoMagic NMG5 Graphics Controller
Intel 82443BX Pentium(r) II Processor to AGP
Controller
PCI Multimedia Audio Device
NeoMagic NMG5 Graphics Controller
PCI Multimedia Audio Device
Intel 82443BX Pentium(r) II Processor to AGP
Controller
NeoMagic NMG5 Graphics Controller
Intel 82443BX Pentium(r) II Processor to PCI
Bridge (with GART Support)
Motherboard Resources
12.1 in TFT Display
1.1 in
11.6 in
9.2 in
1.2 in
11.6 in
9.2 in
Storage Drives
Hard Drives, continued
Hard Drives, continued
CD ROM Drive
(24X)
CRN- CDR-
8142B U242Z
128mm Not
12.7mm Available
129mm Not
Available
Not
Available
300g Not
Available
5000RPM Not
Available
16.67MB/s Not
3600KB/s Available
Not
Available
110ms Not
Available
5s Not
Available
1Mbit Not
Available
Specifications
U.S.
3.5 in Drive
Low 720KB
High 1.44MB
3.5 in
1
1
360
Low 31
High 62
512
Low 9
High 18
3ms
15ms
Not Available
2
Hard Drives
DBCA-
20648
4.8-GB 6.4-GB
U-DMA/33 U-DMA/33
10068 13424
3 4
63 63
512 512
Read Read
13ms Write
Write
14ms
Read
2.5ms
Read Write
2.5ms 3.0ms
Write
Read
3.0ms
Write
Read 24ms
23ms
Write
24ms
16.6MB/s 16.6MB/s
MHH20
MHH20 64AT
48AT
4.8-GB 6.4-GB
U-DMA/33 U-DMA/33
Not 13424
Available 4
Not 63
Available 512
Not
Available
Not
Available
Read N/A Read
Write N/A Write
Read N/A Read
Write N/A 2.5ms
Write
Read N/A
3.0ms
Write N/A
Read
Write
24ms
15.8MB/s 16.6MB/s
DK238 A-
DK228 A-65
43
6.4
4.3 GB
GB(12.7mm)
Not 13424
Available 4
Not 63
Available 512
Not
Available
Not
Available
Read N/A Read
Write N/A Write
Read N/A
Write N/A
Read N/A
Write N/A
DVD Drive (4X)
DRD-424
128mm
12.7mm
129mm
280g
2300 RPM
16.6MB/s(PIO)
5400KB/s
150ms
<15s*1
128KB
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Parts Catalog
Battery Operations
Index
Metric
234mm
294.7mm
29mm
234mm
294.7mm
30.5mm
LS-120 Drive
Information
Not Applicable
DBCA- DCXA-
206480 21000
10.0-GB
U-
DMA/33
16383
6
63
512
13ms Read
14ms 12ms
Write
14ms
Read
2.5ms
Write
23ms
3.0ms
Read
23ms
Write
24ms
16.6MB/s
MHG2
102AT
10.0-GB
U-
DMA/33
16383
6
63
512
13ms Read
14ms 13ms
Write
N/A
Read
1.5ms
Write
23ms
N/A
Read
23ms
Write
N/A
15.8MB/s
DK239 A-
65
6.4 GB
U-
DMA/33
16383
6
63
512
Read
Write
N/A
Read
Write
N/A
Read
Write
N/A
SD-C2202
128mm
12.7mm
129mm
270g
2300RPM
16.7MB/s(PIO)
5400KB/s
140ms
3.8s
128KB