Physical And Environmental; System Interrupts; System Dma; System Memory - Compaq Presario 1800T Maintenance And Service Manual

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Specifications
This section covers the following specifications of Compaq Presario 1800 Series Portable
Computers:

Physical and Environmental

Dimensions
Height
Depth
Width
Weight
Stand-Alone (Battery Pack) Power
Requirements
Nominal Operating
Maximum Average
Peak Operating
AC Power Requirements
Operating Voltage
Operating Current
Operating Frequency
Maximum Transient
Temperature
Operating
Nonoperating
Relative Humidity (noncondensing)
Operating
Nonoperating (tw = 38.7°C max)
Altitude
Operating
Nonoperating
Shock
Operating
Non operating
Vibration
Operating
Nonoperating
NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. Compaq Explorer
Series Portable Computers operate well within this range of temperatures.
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System Interrupts

Hardware IRQ
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ11
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
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System DMA

Hardware DMA
DMA 1
DMA 2
DMA 3
DMA 4
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System I/O Address
I/O Address (Hex)
0000h-000Fh
0020h-0021h
0040h-0043h
0060h-0060h
0061h-0061h
0064h-0064h
0070h-0071h
0072h-0073h
0080h-0080h
0081h-008Fh
00A0h-00A1h
00C0h-00DFh
00ECh-00EFh
00F0h-00FFh
0170h-0177h
0170h-0177h
01F0h-01F7h
01F0h-01F7h
0200h-0203h
0220h-022Fh
0330h-0331h
0376h-0376h
0376h-0376h
0378h-037Fh
0388h-038Bh
03B0h-03BBh
03C0h-03Dfh
03E0h-03E1h
03F0h-03F5h
03F6h-03F6h
03F6h-03F6h
03F7h-03F7h
03F8h-03FFh
04D0h-04D1h
0CF8h-0CFFh
2180h-218Fh
8000h-803Fh
E000h-EFFFh
E800h-E8FFh
F4D8h-F4DBh
F4DCh-F4DFh
F4E0h-F4Efh
F4F0h-F4FFh
F800h-F8FFh
FC00h-FC7Fh
FC88h-FC8Fh
FC90h-FC97h
FC90h-FC9Fh
FC98h-FC9F
FCA0h-FCBFh
FCC0h-FCFFh
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System Memory Catalog
Memory Address
00000000h-0009FFFFh
000A0000h-000AFFFFh
000B0000h-000BFFFFh
000C0000h-000CBFFFh
000E0000h-000E7FFFh
000E8000h-000FFFFFh
00100000h-03FFFFFFh
08000000h-08000FFFh
F8000000h-FBFFFFFFh
FD000000h-FDFFFFFFh
FD000000h-FECFFFFFh
FE000000h-FE01FFFFh
FECFE000h-FECFFFFh
FEDFF800h-FEDFFBFFh
FEDFFC00h-FEDFFCFFh
FFF80000h-FFFFFFFFh
Display
Dimensions
Height
Width
Display Dimensions
Height
Width
Depth
Weight
Contrast Ratio
Brightness
Total Power Consumption
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Dimensions
Height
Width
Display Dimensions
Height
Width
Depth
Weight
Contrast Ratio
Brightness
Total Power Consumption
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Memory Expansion

System Memory

64-MB
64-MB
64-MB
64-MB
Diskette or LS120 Drive
Capacity per Diskette (High/Low)
Diskette Size
Number of LED Indicators (Read/Write)
Number of Drives Supported
Drive Rotation (rpm)
Transfer Rate (Kbps)
Bytes per Sector
Sectors per Track (High/Low)
Tracks per Side (High/Low)
Access Times
Track-to-Track (ms)
Average (ms)
Setting Time (ms)
Latency Average (ms)
Cylinders (High/Low)
Number of Read/Write Heads
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Hard Drive
Capacity Per Drive
Drive Type
Logical Configuration
Cylinders
Heads
Sectors per track
Bytes per sector
Seek Times
(Typical, Including settling in ms)
Single track
Average
Full stroke
Transfer Rate At Interface
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CD/DVD Drive
Dimensions
Weight
Rotational Speed
Typical Transfer Rate
Sustained Data Transfer
Rate
Access Time
Average Random Access
Time
Spin Up time
Data Buffer Capacity
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Battery Pack
Dimensions
Height
Length
Width
Weight
Battery Pack Operating Time
Energy
Nominal Open Circuit Voltage
Capacity
Power

Environmental Requirements

Operating Temperature
Non-operating Temperature
Charging Temperature
*The battery operating time changes depending on your power management settings, system
components, options, and applications you use.
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Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
Pin Assignments | Battery Pack Operations
Physical and Environmental
System Interrupts
System DMA
System I/O Address
System Memory Catalog
Display
Memory Expansion
Diskette or LS120 Drive
Hard Drive
DVD or CD drive
Battery Pack
Computer Specifications
System Function
System timer
Standard 101/102-key or Microsoft Natural Keyboard
Programmable interrupt controller
Lucent 56K V.90 PCI DF Modem
Communications Port (COM1)
ESS SOLO-1 PCI AudioDrive
RAGE LT PRO AGP 2X (English)
Standard Floppy Disk Controller
Printer Port (LPT1)
System CMOS/real time clock
Available
Available
Intel 21143/2 based 10/100 mbps Ethernet Controller
Texas Instruments PCI-1211 CardBus Controller
Intel 82371AB/EB PCI to USB Universal Host Controller
Synaptics PS/2 TouchPad
Numeric Data Processor
Intel 82371AB/EB PCI Bus Master Primary IDE Controller
Intel 82371AB/EB PCI Bus Master Secondary IDE Controller
System I/O Address
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
Motherboard resources
Motherboard resources
Direct memory controller
Programmable interrupt controller
Direct memory access Controller
Motherboard resources
Numeric data processor
Intel 82371AB/EB PCI Bus Master IDE
controller
Secondary IDE controller (dual fifo)
Intel 82371AB/EB PCI Bus Master IDE
controller
Primary IDE controller (dual fifo)
Gameport Joystick
ESS SOLO-1 DOS Emulation
ESS SOLO-1 DOS Emulation
Intel 82371AB/EB PCI Bus Master IDE
Controller
Secondary IDE controller (dual fifo)
ECP Printer Port (LPT1)
ESS SOLO-1 DOS Emulation
RAGE LT PRO AGP 2X (English)
RAGE LT PRO AGP 2X (English)
Motherboard resources
Standard Floppy Disk Controller
Intel 82371AB/EB PCI Bus Master IDE
Controller
Primary IDE controller (dual fifo)
Standard Floppy Disk Controller
Communications Port (COM1)
Motherboard resource
PCI bus
Motherboard resources
Motherboard resources
Intel 82443BX Pentium ® II Processor to AGP
controller
RAGE LT PRO AGP 2X (English)
ESS SOLO-1 PCI AudioDrive
ESS SOLO-1 PCI AudioDrive
ESS SOLO-1 PCI AudioDrive
ESS SOLO-1 PCI AudioDrive
Lucent 56K V.90 PCI DF Modem
Intel 21143/2 based 10/100 mbps Ethernet
Controller
Lucent 56K V.90 PCI DF Modem
Primary IDE controller (dual fifo)
Intel 822371AB/EB PCI Bus Master IDE
Controller
Secondary IDE controller (dual fifo)
Intel 82371AB/EB PCI to USB Universal Host
Controller
ESS SOLO-1 PCI AudioDrive
System Memory Catalog
System Function
System board extension for PnP BIOS
RAGE LT PRO AGP 2X (English)
RAGE LT PRO AGP 2X (English)
RAGE LT PRO AGP 2X (English)
Motherboard resources
System board extension for PnP BIOS
System board extension for PnP BIOS
Texas Instruments PCI-1211 CardBus Controller
Intel 82443BX Pentium ® ll Processor to PCI
bridge
RAGE LT PRO AGP2X (English)
Intel 82443BX Pentium ® ll Processor to AGP
controller
RAGE LT PRO AGP 2X (English)
RAGE LT PRO AGP 2X (English)
Intel 21143/2 based 10/100 mbps Ethernet
Controller
Lucent 56K V.90 PCI DF Modem
Motherboard resources
15.0" (Diagonal) TFT Display with LVDS
14.1" (Diagonal) TFT Display with LVDS
Memory Expansion
Expansion Board
Memory
32-MB
64-MB
128-MB
4.8-GB
4.8-GB
11648
3
190/330
512
4
14
24
33.3 MB/s
4x DVD
128 x 129 x 12.7 mm 128 x 129 x 12.7mm 128 x 129 x 12.7 mm
0.27 kg
2300 rpm
5400 KB/s
140 ms
3.8 s
128 KB
U.S.
1.65 in
13.00 in
10.99 in
7.9 lbs
Li-ion 3.2 mAh
W @ 14.8 V
W @ 14.8 V
W @ 14.8 V
100-240 V
0.8/0.4 A RMS
47-63 Hz
Meets IEC 801-4 and IEC801-5
1kV for 50 ns
50° to 95 °F
-4° to 140 °F
90%
5% to 95%
0 to 10,000 ft
0 to 30,000 ft
10 G, 11 ms, half sine
240 G, 2 ms, half sine
0.5 G
1.5 G
System Interrupts
System DMA
System Function
ESS SOLO-1 DOS Emulation
Standard Floppy Disk Controller
ECP Printer Port (LPT1)
Direct memory access controller
U.S.
9.48 in
12.43 in
8.99 in
11.98 in
Information not available
24.36 oz
150:1 mini
120 cd/mm^3
Information not available
U.S.
8.92 in
11.76 in
8.44 in
11.26 in
Information not
available
19.94 oz
150:1 mini
120 cd/mm^3
Information not available
Diskette Drive
1.44 MB/720KB
3.5"
0
1
300
500
512
18/9
80
3
94
15
100
80
2
Hard Drive
6.4-GB
6.4-GB
8647
4
190/330
512
4
14
24
33.3 MB/s
CD/DVD Drive
6x DVD
0.28 kg
3450 rpm
8100 KB/s
140 ms
<15 s
512 KB
Battery Pack
Lithium Ion (Li ion) *
0.8 in (20.3 mm)
5.7 in (145 mm)
3.1 in (78.7 mm)
0.90 lb (408.2 g)
2 hr 30 min*
14.4 V
3200 mAH
46.1 WH
32° F (0-50° C)
-20° C -60° C
5° C-45° C
Metric
4.20 cm
33.00 cm
27.90 cm
3.58 kg
10° to 35 °C
-20° to 60 °C
10% to 90%
5% to 95%
0 to 3.05 km
0 to 9.14 km
Metric
24.05 cm
31.55 cm
22.81 cm
30.41 cm
Information not
available
690 gm
Metric
22.65 cm
29.85 cm
21.43 cm
28.57 cm
Information not
available
565 gm

Total Memory

64-MB
96-MB
128-MB
192-MB
LS120 Drive
120 MB
3.5"
1
1
720
5458
512
20
112
800
41.67
1736
2
10.0-GB 18.0-GB
10.0-GB 18.0-GB
11968 16383
6 6
190/330 Not available
512 512
4
2.5 (Read)
14
12 (Read)
24
23 (Read)
33.3 MB/s 33.3 MB/s
24x CD-ROM
<0.27 kg
4225 rpm
3600 KB/s
120 ms
2.7 s
128 KB