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Maintenance & Service Guide
Presario Series
Models: 1246, 1247, 1277, 1278, and 1279

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Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications
Pin Assignments
| Battery Pack Operations


Specifications

This chapter covers the following specifications of Compaq Presario Series Portable Computers:

 

Physical and Environmental

Computer Specifications

U.S.

Metric

Dimensions
(models with 12.1" display)
Height
Depth
Width

(model 1277 with 13.0" display)
Height
Depth
Width



1.97 in
12.20 in
10.12 in


1.97 in
12.33
10.12


5.0 cm
31.3 cm
25.7 cm


5.0 cm
31.3 cm
25.7

Weight
Model 1246
Model 1247
Model 1277
Model 1278
Model 1279


7.19lbs
7.19lbs
7.19lbs
7.19 lbs
7.36 lbs

3260 g
3260 g
3260 g
3260 g
3340 g

Stand-Alone (Battery Pack) Power Requirements

Nominal Operating Voltage
Maximum Operating Power
Peak Operating Power

NiMH

W @ 9.6 V
W @ 9.6 V
W @ 9.6 V

Li-ion

W @ 14.8 V
W @ 14.8 V
W @ 14.8 V

AC Power Requirements
Operating Voltage
Operating Current
Operating Frequency

Maximum Transient


100-240 V
0.8/0.4 A RMS
47-63 Hz
Meets IEC 801-4 and IEC801-5
1kV for 50 ns

Temperature

Operating

41o to 95o F

5o to 35o C

Nonoperating

-4o to 140o F

-20o to 60o C

Relative Humidity (Non-condensing)

Operating

10 to 90%

35o C to 90%

Nonoperating (tw = 38.7oC max)

5 to 95%

60o C to 95%

Altitude

Operating

0 to 10,000 ft

0 to 3.15 km

Nonoperating

0 to 30,000 ft

0 to 10.14 km

Shock

Operating

10 G, 11 ms, half sine

Non operating

240 G, 2 ms, half sine

Vibration

Operating

0.55 G, 0.25 Oct/Min sweep rate

Nonoperating

1.5 G, 0.25 Oct/Min sweep rate

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

System Timer

IRQ1

Standard 101/102-Key or Microsoft Natural Keyboard

IRQ2

Programmable interrupt controller

IRQ3

IRQ Holder for PCI Steering

IRQ3

ALi PCI to USB Open Host Controller

IRQ4

Communications Port (COM1)

IRQ5

IRQ Holder for PCI Steering

IRQ5

PCI Fast Ethernet DEC 21143 Based Adapter

IRQ5

ESS SOLO-1 PCI AudioDrive

IRQ5

IRQ Holder for PCI Steering

IRQ6

Standard Floppy Disk Controller

IRQ7

Printer Port (LPT1)

IRQ8

System CMOS / real-time clock

IRQ9

RAGE LT PRO AGP 2X (English)

IRQ9

IRQ Holder for PCI Steering

IRQ10

Texas Instruments PCI-1211 CardBus Controller

IRQ10

IRQ Holder for PCI Steering

IRQ10

Lucent 56K V.90 PCI DF Modem

IRQ12

Synaptics PS/2 TouchPad

IRQ13

Numeric data processor

IRQ14

ALi M5229 PCI Bus Master IDE Controller

IRQ14

Primary IDE controller (dual fifo)

IRQ15

ALi M5229 PCI Bus Master IDE Controller

IRQ15

Secondary IDE controller (dual fifo)

 

System DMA

System DMA

Hardware DMA

System Function

0 (free)
1 ESS SOLO-1 DOS Emulation
2 Standard Floppy Disk Controller
3 (free)
4

Direct memory access controller

5

(free)

 

System I/O Address

System I/O Address

I/O Address (Hex)

System Function (Shipping Configuration)

0000 - 000Fh Direct memory access controller
0020h - 0021h Programmable interrupt controller
0040h - 0043h System timer
0060h - x0060h Standard 101/102-Key or Microsoft Natural Keyboard
0061h - x0061h System speaker
0064h - x0064h Standard 101/102-Key or Microsoft Natural Keyboard
0070h - 0071h System CMOS/real time clock
0080h - 0080h Motherboard resources
0081h - 008Fh Direct memory access controller
0092h - 0092h Motherboard resources
00A0h - 00A1h Programmable interrupt controller
00B1h - 00B3h Motherboard Resources
00C0h - 00DFh Direct memory access controller
00EAh - 00EBh Motherboard resources
00F0h - 00FFh Numeric data processor
0100h - 010Fh Motherboard resources
0170h - 0177h ALi M5229 PCI Bus Master IDE Controller
0170h - 0177h Secondary IDE controller (dual fifo)
01F0h - 01F7h ALi M5229 PCI Bus Master IDE Controller
0200h - 0203h Gameport Joystick
0220h - 022Fh ESS SOLO-1 DOS Emulation
0330h - 0331h ESS SOLO-1 DOS Emulation
0376h - 0376h Secondary IDE controller (dual fifo)
0376h - 0376h ALi M5229 PCI Bus Master IDE Controller
0378h - 037Fh Printer Port (Ltp1)
0388h - 038Bh ESS SOLO-1 DOS Emulation
03B0h - 03BBh RAGE LT PRO AGP 2X (English)
03C0h - 03DFh RAGE LT PRO AGP 2X (English)
03F0h - 03F5h Standard Floppy Disk Controller
03F6h - 03F6h Primary IDE controller (dual fifo)
03F6h - 03F6h ALi M5229 PCI Bus Master IDE Controller
03F7h - 03Fh7 Standard Floppy Disk Controller
03F8h - 03FFh Communication Port (COM1)
040Bh - 040Bh Motherboard Resources
040D0h - 04D1h Motherboard Resources
04D6h - 04D6h Motherboard Resources
0CF8h - 0CFFh PCI Bus
1000h - 103Fh Motherboard Resources
1040h - 105Fh Motherboard Resources
1060h - 106Fh ESS SOLO-1 PCI AudioDrive
1070h - 107Fh ESS SOLO-1 PCI AudioDrive
1080h - 10FFh PCI Fast Ethernet DEC 21143 Based Adapter
1400h - 14FFh Lucent 56K V.90 PCI DF Modem
1800h - 183Fh ESS SOLO-1 PCI AudioDrive
1840h - 1847h Primary IDE controller (dual fifo)
1840h - 184Fh ALi M5229 PCI Bus Master IDE Controller
1848h - 184Fh Secondary IDE controller (dual fifo)
1850h - 1853h ESS SOLO-1 PCI AudioDrive
1854h - 1857h ESS SOLO-1 PCI AudioDrive
1858h - 185Fh Lucent 56K V.90 PCI DF Modem
2000h - 2FFFh PCI standard PCI-to-PCI bridge
2000h - 20FFh RAGE LT PRO AGP 2X (English)

 

System Memory Catalog

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)

000DC000h - 000DFFFFh

Motherboard Resources
000E0000h - 000FFFFFh System board extension for PnP BIOS
00100000h - 01FFFFFFh System board extension for PnP BIOS

0C000000h - 0C000FFFh

Texas Instruments PCI-1211 CardBus Controller

E0000000h - E3FFFFFFh

ALi M1541 AGP System Controller

FC000000h - FCFFFFFFh

ALi PCI to USB Open Host Controller

FC001000h - FC0010FFh

Lucent 56K V.90 PCI DF Modem

FC001400h - FC0017FFh

PCI Fast Ethernet DEC 21143 Based Adapter

FC100000h - FDFFFFFFh

PCI standard PCI-to-PCI bridge

FC100000h - FC100FFFh

RAGE LT PRO AGP 2X (English)

FC120000h - FC13FFFFh

RAGE LT PRO AGP 2X (English)

FD000000h - FDFFFFFFh

RAGE LT PRO AGP 2X (English)

FFFC0000h - FFFFFFFFh

Motherboard Resources

Display

12.1" (Diagonal) HPA Display
  U.S. Metric

Active Area
Height
Width


9.56"
7.17"


245 mm
183.8 mm

Overall Dimensions
Width
Height
Depth


7.9"
10.7"
.31"


202.5 mm
275.0 mm
8.0 mm

Weight

18.2 oz. 520 g

Contrast Ratio

40:1

Brightness

70 nits. Avg.

Total Power Consumption

5.4 W (max)

 

13.0" (Diagonal) HPA Display
  U.S. Metric

Active Area
Height
Width


10.39"
7.79"


263.98 mm
197.98 mm

Overall Dimensions
Width
Height
Depth


11.6"
8.58"
.31"


295.0 mm
218.0 mm
8.0 mm

Weight

20.3 oz. 580 g

Contrast Ratio

50:1

Brightness

100 nits. Avg.

Total Power Consumption

5.4 W (max)

 

Memory Expansion

Base System Memory

Expansion Board Memory

Total Memory

32-MB

32-MB 64-MB

32-MB

64-MB 96-MB

32-MB

128-MB 160-MB

64-MB

32-MB 96-MB

64-MB

64-MB 128-MB

64-MB

128-MB 192-MB

Diskette Drive

Diskette Drive

Diskette Size
Light
Height

3.5 in
None
.5" / 1.27 cm

Bytes per Sector:
Sectors per Track
High Density
Low Density

512

18 (1.44-MB) / 15 (1.2-MB)
9

Tracks per Side
High Density
Low Density


80 (1.44-MB) / 80 (1.2-MB)
80

Access Times
Track-to-Track (high/low)
Average (ms)
Setting Time (ms)
Latency Average


3 ms/6 ms
94 ms/174 ms
15 ms
100

Number of Read/Write Heads

2

Hard Drive

Hard Drives

 

4.3-GB

4.8-GB

Capacity Per Drive

4.3-GB

4.3-GB

Drive Type

2.5"

2.5"

Logical Configuration
Cylinders
Heads
Sectors per track
Bytes per sector


8647
6
240-250
512


11648
4
330 (max.)
512

Seek Times
(Typical, Including settling in ms)
Single Track


Average Maximum


Full Stroke

2.5 ms

---


12


---

2.5 ms

5.5 max (read)
6.5 max (write)

16 max (read)
17 max (write)

30 max (read)
31 max (write)

Transfer Rate
At interface


33.3 MB/s


33.3 MB/s

Sector Interleave

1:1

1:1

Buffer Size

512 KB

512 KB

CD Drive

CD Drive

 

24x CD Drive

Applicable Disk CD-DA, CD-ROM, CD-ROM XA, CD-1, Photo CD (multisession), Video CD, CD-R, CD-Extra (CD+), CD-G, CD-RW
Center Hole Diameter .6" / 15 mm

Disc Diameter

12 cm, 8 cm

Disc Thickness

1.2 mm

Track Pitch

1.6 um
Access Time
(typical, including setting)

110 ms

Audio Output Level
Line out
Headphone


+/- 0.27 Vrms
none

Cache Buffer

128 KB

Data Transfer Rate
(typical, including setting)

3600 KB/s
150 KB/s
16.66 MB/sec

Startup Time

< 8 sec

Stop time

< 4 sec

 

Battery Pack

Battery Pack

 

Lithium Ion (Li ion)

Nickel Metal Hydride (NiMH)

Dimensions
Height
Length
Width


.8 in (20.3 mm)
5.7 in (145 mm)
3.1 in (78.7 mm)


.8 in (20.3 mm)
5.7 in (145 mm)
3.1 in (78.7 mm)

Weight

0.90 Ib (408.2 g)

1.01 lb (458.1 g)

Battery Pack Operating Time

3:00 hr

Energy
Voltage
Amp-hour capacity
Watt-hour capacity


14.8 V
3.0 Ah
44.4 Wh


9.6 V
4.5 Ah
43.2 Wh

Environmental Requirements
Operating Temperature


Non-operating Temperature


Charging Temperature


32o F to 113o F

(0o to 45o C)

-4o F to 140o F

(-20o to 60o C)

40
o F to 113o F
(5o C to 45o C)


32o F to 113o F

(0o to 45o C)

-4o F to 140o F

(-20o to 60o C)

40
o F to 113o F
(5o C to 45o C)

Modem

 

Modem

Compliance

ITU v.90~6 standard
Full ITU-T V.34 compliance
Full compliance with: V.21, V.22, V.22bis, V.23, V.32, V.32bis, Bell 103, Bell 212A

Data Compression V.42bis/MNP 5
Fax Modulation

V. 17
V. 21 (Group III Compatible)
V.29
V.27Ter

Command Set

Hayes AT
C
lass 1 Fax

Cable

6 Ft. RJ-11 telephone cable

 

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