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Maintenance &
Service Guide
Presario 1800 Series
Models: 1825 and 1800T
| Home Page | Notice | Preface | Product
Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery
Pack Operations
This section covers the following specifications of Compaq Presario 1800 Series Portable Computers:
Computer Specifications |
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U.S. |
Metric |
|
Dimensions |
1.65 in 13.00 in 10.99 in |
4.20 cm 33.00 cm 27.90 cm |
Weight |
7.9 lbs | 3.58 kg |
Stand-Alone (Battery Pack) Power Requirements Nominal Operating |
Li-ion 3.2 mAh W @ 14.8 V |
|
AC Power Requirements Operating Voltage |
100-240 V |
|
Temperature |
|
|
Relative Humidity (noncondensing) Operating Nonoperating (tw = 38.7°C max) |
90% 5% to 95% |
10% to 90% 5% to 95% |
Altitude Operating Nonoperating |
0 to 10,000 ft 0 to 30,000 ft |
0 to 3.05 km 0 to 9.14 km |
Shock Operating Non operating |
10 G, 11 ms, half sine 240 G, 2 ms, half sine |
|
Vibration Operating Nonoperating |
0.5 G 1.5 G |
|
NOTE: Applicable product safety standards specify thermal limits for plastic surfaces. Compaq Explorer Series Portable Computers operate well within this range of temperatures. |
System Interrupts |
|
Hardware IRQ |
System Function |
IRQ0 |
System timer |
IRQ1 |
Standard 101/102-key or Microsoft Natural Keyboard |
IRQ2 |
Programmable interrupt controller |
IRQ3 |
Lucent 56K V.90 PCI DF Modem |
IRQ4 |
Communications Port (COM1) |
IRQ5 |
ESS SOLO-1 PCI AudioDrive |
IRQ5 |
RAGE LT PRO AGP 2X (English) |
IRQ6 |
Standard Floppy Disk Controller |
IRQ7 |
Printer Port (LPT1) |
IRQ8 |
System CMOS/real time clock |
IRQ9 |
Available |
IRQ10 |
Available |
IRQ11 |
Intel 21143/2 based 10/100 mbps Ethernet Controller |
IRQ11 |
Texas Instruments PCI-1211 CardBus Controller |
IRQ11 |
Intel 82371AB/EB PCI to USB Universal Host Controller |
IRQ12 |
Synaptics PS/2 TouchPad |
IRQ13 |
Numeric Data Processor |
IRQ14 |
Intel 82371AB/EB PCI Bus Master Primary IDE Controller |
IRQ15 |
Intel 82371AB/EB PCI Bus Master Secondary IDE Controller |
System DMA |
|
Hardware DMA |
System Function |
DMA 1 | ESS SOLO-1 DOS Emulation |
DMA 2 | Standard Floppy Disk Controller |
DMA 3 | ECP Printer Port (LPT1) |
DMA 4 | Direct memory access controller |
System I/O Address |
|
I/O Address (Hex) |
System Function (Shipping Configuration) |
0000h-000Fh | Direct memory access controller |
0020h-0021h | Programmable interrupt Controller` |
0040h-0043h | System timer |
0060h-0060h | Standard 101/102-Key or Microsoft Natural Keyboard |
0061h-0061h | System speaker |
0064h-0064h | Standard 101/102-Key or Microsoft Natural Keyboard |
0070h-0071h | System CMOS/real time clock |
0072h-0073h | Motherboard resources |
0080h-0080h | Motherboard resources |
0081h-008Fh | Direct memory controller |
00A0h-00A1h | Programmable interrupt controller |
00C0h-00DFh | Direct memory access Controller |
00ECh-00EFh | Motherboard resources |
00F0h-00FFh | Numeric data processor |
0170h-0177h | Intel 82371AB/EB PCI Bus Master IDE controller |
0170h-0177h | Secondary IDE controller (dual fifo) |
01F0h-01F7h | Intel 82371AB/EB PCI Bus Master IDE controller |
01F0h-01F7h | Primary IDE controller (dual fifo) |
0200h-0203h | Gameport Joystick |
0220h-022Fh | ESS SOLO-1 DOS Emulation |
0330h-0331h | ESS SOLO-1 DOS Emulation |
0376h-0376h | Intel 82371AB/EB PCI Bus Master IDE Controller |
0376h-0376h | Secondary IDE controller (dual fifo) |
0378h-037Fh | ECP Printer Port (LPT1) |
0388h-038Bh | ESS SOLO-1 DOS Emulation |
03B0h-03BBh | RAGE LT PRO AGP 2X (English) |
03C0h-03Dfh | RAGE LT PRO AGP 2X (English) |
03E0h-03E1h | Motherboard resources |
03F0h-03F5h | Standard Floppy Disk Controller |
03F6h-03F6h | Intel 82371AB/EB PCI Bus Master IDE Controller |
03F6h-03F6h | Primary IDE controller (dual fifo) |
03F7h-03F7h | Standard Floppy Disk Controller |
03F8h-03FFh | Communications Port (COM1) |
04D0h-04D1h | Motherboard resource |
0CF8h-0CFFh | PCI bus |
2180h-218Fh | Motherboard resources |
8000h-803Fh | Motherboard resources |
E000h-EFFFh | Intel 82443BX Pentium ® II Processor to AGP controller |
E800h-E8FFh | RAGE LT PRO AGP 2X (English) |
F4D8h-F4DBh | ESS SOLO-1 PCI AudioDrive |
F4DCh-F4DFh | ESS SOLO-1 PCI AudioDrive |
F4E0h-F4Efh | ESS SOLO-1 PCI AudioDrive |
F4F0h-F4FFh | ESS SOLO-1 PCI AudioDrive |
F800h-F8FFh | Lucent 56K V.90 PCI DF Modem |
FC00h-FC7Fh | Intel 21143/2 based 10/100 mbps Ethernet Controller |
FC88h-FC8Fh | Lucent 56K V.90 PCI DF Modem |
FC90h-FC97h | Primary IDE controller (dual fifo) |
FC90h-FC9Fh | Intel 822371AB/EB PCI Bus Master IDE Controller |
FC98h-FC9F | Secondary IDE controller (dual fifo) |
FCA0h-FCBFh | Intel 82371AB/EB PCI to USB Universal Host Controller |
FCC0h-FCFFh | ESS SOLO-1 PCI AudioDrive |
System Memory Catalog |
|
Memory Address |
System Function |
00000000h-0009FFFFh | System board extension for PnP BIOS |
000A0000h-000AFFFFh | RAGE LT PRO AGP 2X (English) |
000B0000h-000BFFFFh | RAGE LT PRO AGP 2X (English) |
000C0000h-000CBFFFh | RAGE LT PRO AGP 2X (English) |
000E0000h-000E7FFFh | Motherboard resources |
000E8000h-000FFFFFh | System board extension for PnP BIOS |
00100000h-03FFFFFFh | System board extension for PnP BIOS |
08000000h-08000FFFh | Texas Instruments PCI-1211 CardBus Controller |
F8000000h-FBFFFFFFh | Intel 82443BX Pentium ® ll Processor to PCI bridge |
FD000000h-FDFFFFFFh | RAGE LT PRO AGP2X (English) |
FD000000h-FECFFFFFh | Intel 82443BX Pentium ® ll Processor to AGP controller |
FE000000h-FE01FFFFh | RAGE LT PRO AGP 2X (English) |
FECFE000h-FECFFFFh | RAGE LT PRO AGP 2X (English) |
FEDFF800h-FEDFFBFFh | Intel 21143/2 based 10/100 mbps Ethernet Controller |
FEDFFC00h-FEDFFCFFh | Lucent 56K V.90 PCI DF Modem |
FFF80000h-FFFFFFFFh | Motherboard resources |
15.0" (Diagonal) TFT Display with LVDS |
|||
|
U.S. |
Metric |
|
Dimensions |
|
|
|
|
|
|
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Weight |
24.36 oz |
690 gm |
|
Contrast Ratio |
150:1 mini |
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Brightness |
120 cd/mm^3 |
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Total Power Consumption |
Information not available |
14.1" (Diagonal) TFT Display with LVDS |
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|
U.S. |
Metric |
|
Dimensions |
|
|
|
|
|
|
|
Weight |
19.94 oz |
565 gm |
|
Contrast Ratio |
150:1 mini |
||
Brightness |
120 cd/mm^3 |
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Total Power Consumption |
Information not available |
Memory Expansion |
||
System Memory |
Expansion Board Memory |
Total Memory |
64-MB |
64-MB | |
64-MB |
32-MB | 96-MB |
64-MB |
64-MB | 128-MB |
64-MB |
128-MB | 192-MB |
|
Diskette Drive | LS120 Drive |
Capacity per Diskette (High/Low) |
1.44 MB/720KB |
120 MB |
Diskette Size |
3.5" |
3.5" |
Number of LED Indicators (Read/Write) |
0 |
1 |
Number of Drives Supported |
1 |
1 |
Drive Rotation (rpm) |
300 |
720 |
Transfer Rate (Kbps) |
500 |
5458 |
Bytes per Sector |
512 |
512 |
Sectors per Track (High/Low) |
18/9 |
|
Tracks per Side (High/Low) |
80 |
|
Access Times Track-to-Track (ms) |
3 |
20 |
Cylinders (High/Low) |
80 |
1736 |
Number of Read/Write Heads |
2 |
2 |
Hard Drive |
||||
|
4.8-GB |
6.4-GB |
10.0-GB |
18.0-GB |
Capacity Per Drive |
4.8-GB |
6.4-GB |
10.0-GB |
18.0-GB |
Drive Type |
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|
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Logical
Configuration |
|
|
|
16383 6 Not available 512 |
Seek Times
|
|
|
|
2.5 (Read) |
Transfer Rate At Interface | 33.3 MB/s | 33.3 MB/s | 33.3 MB/s | 33.3 MB/s |
CD/DVD Drive |
|||
|
4x DVD | 6x DVD | 24x CD-ROM |
Dimensions |
128 x 129 x 12.7 mm | 128 x 129 x 12.7mm | 128 x 129 x 12.7 mm |
Weight |
0.27 kg | 0.28 kg | <0.27 kg |
Rotational Speed |
2300 rpm | 3450 rpm | 4225 rpm |
Typical Transfer Rate |
5400 KB/s
|
8100 KB/s | 3600 KB/s |
Access Time |
140 ms
|
140 ms | 120 ms |
Spin Up time |
3.8 s | <15 s | 2.7 s |
Data Buffer Capacity |
128 KB | 512 KB | 128 KB |
Battery Pack |
|
|
Lithium Ion (Li ion) * |
Dimensions |
|
Weight |
0.90 lb (408.2 g) |
Battery Pack Operating Time |
2 hr 30 min* |
Energy |
|
Environmental
Requirements |
|
*The battery operating time changes depending on your power management settings, system components, options, and applications you use. |