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Maintenance & Service Guide
Presario 305 Model

MSG Index | Home Page | Notice | Preface | Product Description | Troubleshooting  
Illustrated Parts Catalog
Removal & Replacement Procedures | Specifications
Pin Assignments
| Battery Pack Operations


Specifications (continued)

 

Physical and environmental System Interrupts System DMA
System I/O Address System Memory Catalog Display
Diskette drive Hard drive CD drive
Battery pack

 

Diskette Drive

Diskette Size

3.5 inch

Light

On drive

Height 0.55 in (1.40 cm)
Bytes per Sector 512
Sectors per Track
High Density
Low Density


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

Tracks per Side
High Density
Low Density


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

Read/Write Heads

2

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


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

Energy
Voltage
Amp-hour capacity
Watt-hour capacity


14.4 V
2.8 Ah
27 Wh

Temperature
Operating
Non-operating


41 to 95°F/5 to 35 °C
-22 to 140°F/-30 to 60 °C

 

Hard Drive

4.3 GB

Formatted Capacity per Drive (GB)

4.3 GB2

Logical Configuration
Cylinders
Heads
Sectors per track
Bytes per sector


8955
4
N/A
512

Typical Seek Times, ms
(including settling)
Single track
Average
Full stroke
Rotational speed
 

N/A
4 ms
13 ms (read)
23 ms
4,009 rpm

Transfer Rate

33.3 MB/s

Operating Temperature

41 to 131°F/5 to 55 °C

 

CD-ROM Drive

Applicable Disc CD-ROM (Mode 1, 2, and 3)
CD-XA ready (Mode 2, Form 1 and Form 2)
CD-I ready (Mode 2, Form 1 and Form 2)
CD-R (ready only)
CD Plus
Photo CD (single/multisession)
CD Extra
Video CD
CD-WO (fixed packets only)
CD-Bridge
Center Hole Diameter .59 in/15 mm
Disc Diameter

12 cm,  8 cm

Disc Thickness 1.2 mm
Track Pitch 1.6 um
Capacity Mode 1, 12
Mode 2, 12 cm
8 cm
550 MB
640 MB
180 MB
Laser Beam Divergence
Output Power
Type
Wave Length
53.5 ± 1.5 degrees
0.24
± 0.1 mw
Semiconducter Laser GaA1As
780 nm
± 25 nm
Access Time Random
Full Stroke
< 150 ms
< 300 ms
Audio Output Level Line out
Headphone
0.7 V rms
none
Cache Buffer 128 KB
Data Transfer Rate
(Sustained)
24x
Variable
Normal PIO Mode 4 (single burst)
Startup time
Stop time
150 KB/sec
1500 to 3600 KB/sec
16.6 MB/sec

< 8.3 seconds
< 4.0 seconds

 

Lithium Ion (Li Ion) Battery Pack

Dimensions U.S. Metric

Height
Length

0.9 in
10.47 in
2.3 cm
26.6 cm

Weight

0.48 lb 0.21 kg
Cells

4 Li-Ion

Energy
Voltage
Amp-hour capacity
Watt-hour capacity


14.4 V
2.8 Ah
27 Wh

Environmental Requirements
Operating Temperature
Non-operating Temperature


41
° to 95° F
-22° to 140° F

5
° to 35° C
-30° to 60° C

 

 

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