compaq presario 1230 1250 User Manual

Compaq Presario Series Maintenance and Service Guide 
 U.S.
Metric
Dimensions
Height
Depth
Width 1.97 in
12.20 in
10.08 in
4.95 cm
31.00 cm
25.40 cm
Weight
Model 1234
Model 1235
Model 1236
Model 1237
Model 1238
Model 1240
Model 1242
Model 1250
Model 1252 7.326 lb
7.326 lb
7.326 lb
7.326 lb
7.326 lb
7.326 lb
7.326 lb
7.326 lb
7.326 lb
3.33 kg
3.33 kg
3.33 kg
3.33 kg
3.33 kg
3.33 kg
3.33 kg
3.33 kg
3.33 kg
Stand-Alone (Battery Pack) 
Power Requirements
Nominal Operating
Maximum Average
Peak Operating NiMH...

Compaq Presario Series Maintenance and Service Guide 
Nonoperating1.5 G 
NOTE:  Applicable product safety standards specify thermal limits for plastic\
 surfaces. 
Compaq Presario 1200 Series Portable Computers operate well within this \
range of 
temperatures.
 
System Interrupts
System Interrupts
Hardware IRQ System Function
IRQ0 Timer Interrupt
IRQ1 Standard 101/102-Key or Microsoft Natural 
Keyboard
IRQ2 Programmable interrupt controller
IRQ3 Compaq Presario 56K-DF
IRQ4 Communications Port (COM1)...

Compaq Presario Series Maintenance and Service Guide 
System DMA
Hardware DMA System Function
0
ES1869 Plug and Play AudioDrive
1ES1869 Plug and Play AudioDrive
2Standard Floppy Disk Controller
3(free)
4Direct memory access controller
5(free)
6(free)
7(free)
 
System I/O Address
System I/O Address
I/O Address (Hex) System Function (Shipping 
Configuration)
x0000 - x000F Direct Memory Access Controller
x0020 - x0021 Programmable interrupt controller
x0022 - x0024 Motherboard resources
x0040 - x0043 System...

Compaq Presario Series Maintenance and Service Guide 
x0220 - x022FES1869 Plug and Play AudioDrive
x02F8 - x02FF Compaq Presario 56K-DF
x0330 - x0331 ES1869 Plug and Play AudioDrive
x0370 - x0371 Motherboard resources
x0376 - x0376 Opti Viper Max Dual PCI IDE Controller
x0376 - x0376 Secondary IDE controller (dual fifo)
x0378 - x037F Printer Port (LPT1)
x0388 - x038B ES1869 Plug and Play AudioDrive
x03B0 - x03BB NeoMagic MagicGraph 128XD
x03C0 - x03DF NeoMagic MagicGraph 128XD
x03F0 - x03F5 Standard...

Compaq Presario Series Maintenance and Service Guide 
Display (Information not available)
12.1 (Diagonal) TFT Display
  U.S.
Metric
Dimensions
Height 
Width  Information 
not available
Information 
not available
Display Dimensions
Width
Height
Depth Information 
not available
Information 
not available
Weight Information 
not availableInformation 
not available
Contrast Ratio Information 
not availableInformation 
not available
Brightness Information 
not availableInformation 
not available
Total Power...

Compaq Presario Series Maintenance and Service Guide 
Memory Expansion
System Memory Expansion Board 
MemoryTotal Memory
32-MB 16-MB48-MB
32-MB 32-MB64-MB
32-MB 64-MB96-MB
 
Diskette Drive (Information not available)
Diskette Drive
Capacity per Diskette (High/Low) Information not available
Diskette Size Information not available
Number of LED Indicators 
(Read/Write) Information not available
Number of Drives Supported Information not available
Drive Rotation (rpm) Information not available
Transfer Rate...

Compaq Presario Series Maintenance and Service Guide 
Logical Configuration
Cylinders
Heads
Sectors per track
Bytes per sectorInformation not available
Information not available
Seek Times 
(Typical, Including settling in 
ms)
Single track
Average
Full stroke Information not available
Information not available
Transfer Rate
At interface Information not available
Information not available
 
  Hard Drives
  5.0-GB
6.4-GB 
Capacity Per Drive Information not availableInformation not available
Drive Type...

Compaq Presario Series Maintenance and Service Guide 
Access Time
Average Random Access TimeInformation not available
Spin Up time Information not available 
Data Buffer Capacity Information not available 
 
Battery Pack
Battery Pack
  Nickel Metal Hydride (NiMH)
Lithium Ion (Li ion) *
Dimensions
Height
Length
Width 0.8 in (20.3 mm)
5.7 in (145 mm)
3.1 in (78.7 mm)
0.8 in (20.3 mm)
5.7 in (145 mm)
3.1 in (78.7 mm)
Weight 1.01 Ib (458.1 g) 0.90 Ib (408.2 g)
Battery Pack Operating 
Time 2:30 hr
3:00 hr...