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Maintenance & Service Guide
Presario 2250 Series
2510, 2410 ES & 4240 ES Personal Computers

Home  |   Preface    |   Product Description   |   Troubleshooting   |   Illustrated Parts   |    Removal & Replacement
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Diskette Drive Specifications

Diskette Drive

Diskettes  
Size (in) 3.5
High Density (MB) 1.44
Low Density (KB) 720
LED Green
Height One-third
Bytes per Sector 512
Sectors per Track  
High Density 18
Low Density 9
Tracks per Side  
High Density 80
Low Density 80
Read/Write Heads 2
Average Seek Time (Mb/s)  
Track-to-Track (high/low) 3/3
Average (high/low) 94/94
Settling Time (ms) 15
Latency Average (ms) 100

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3.2-GB Hard Drive Specifications

3.2 GB Hard Drive

  3.2-GB-3.5"
Compaq Part Number 262477
Formatted Capacity
Physical (MB)
Logical (MB)

3227.1
3227.1
Drive Type 65
Transfer Rate
Media (Mbits/sec)
Interface (Mbytes/sec)

87.8
16.67
Typical Seek Time
(including settling)
Single Track (ms)
Average (ms)
Full Stroke (ms)


2.0
12.0
20.0
Disk Rotational Speed (RPM) 4500
Cylinders
Physical
Logical

5690
6253
Data Heads
Physical
Logical

6
16
Sectors per Track
Physical
Logical

114-234
63
Buffer Size (KB) 128

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4.0-GB Hard Drive Specifications

4.0-GB Hard Drive

  4.0-GB-3.5"
Compaq Part Number 286118
Formatted Capacity
Physical (MB)
Logical (MB)

4018
4018
Drive Type 65
Transfer Rate
Media (Mbits/sec)
Interface (Mbytes/sec)

87.8
16.67
Typical Seek Time
(including settling)
Single Track (ms)
Average (ms)
Full Stroke (ms)


2.0
12.0
21.0
Disk Rotational Speed (RPM) 4500
Cylinders
Physical
Logical

5690
7787
Data Heads
Physical
Logical

8
16
Sectors per Track
Physical
Logical

114-234
63
Buffer Size (KB) 128

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6.0-GB Hard Drive Specifications

6.0-GB Hard Drive

  6.0-GB. 5.25"
Compaq Part Number 241139
Formatted Capacity
Physical (MB)
Logical (MB)

6511
6505
Drive Type 65
Transfer Rate
Media (Mbits/sec)
Interface (Mbytes/sec)

Zone 1 - 92.61
Zone 15 - 16.67
Typical Seek Time
(including settling)
Single Track (ms)
Average (ms)
Full Stroke (ms)


3.0
13.0
25.0
Disk Rotational Speed (RPM) 3600
Cylinders
Physical
Logical

8895
13446
Data Heads
Physical
Logical

6
15
Sectors per Track
Physical
Logical

170-288
63
Buffer Size (KB) 512

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8.0-GB Hard Drive Specifications

8.0 GB Hard Drive

  8.0-GB-3.5"
Compaq Part Number 286123
Formatted Capacity
Physical (MB)
Logical (MB)

8037.7
8037.7
Drive Type 65
Transfer Rate
Media (Mbits/sec)
Interface (Mbytes/sec)

91.3-141.7
33
Typical Seek Time
(including settling)
Single Track (ms)
Average (ms)
Full Stroke (ms)


2.5
12.0
24.0
Disk Rotational Speed (RPM) 4000
Cylinders
Physical
Logical

11490
15574
Data Heads
Physical
Logical

4
16
Sectors per Track
Physical
Logical

403-261
63
Buffer Size (KB) 128

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32x CD Drive Specifications

32x CD Drive

Applicable Disc
CD-ROM
CD-DA
CD-XA
Photo CD
Cdi

Mode 1 and Mode 2
Mixed Mode, Audio and Data Combined
Ready
Single and Multiple Session
Ready
Block Size
CD-ROM Mode 1
CD-ROM Mode 2
CD-DA
CD-XA

2048 bytes
2340, 2336 bytes
2352 bytes
2328 bytes
Center Hole 15 mm diameter
Diameter 12 cm, 8 cm
Rotational Speed 4200 RPM, 8X spindle speed
Thickness 1.2 mm
Track Pitch 1.6 µm
Laser
Beam Divergence
Output Power
Type
Wave Length

53.5° +/- 1.5°
0.14 mW
Semiconductor laser GaAIAs
780 nm +/- 25 nm
Access Time
Random
Full Stroke

< 100 ms
< 170 ms
Audio Output Level
Line Out
Headphone

0.7 V (RMS) at 47 kW
0.7 V (RMS) at 32 W
Cache Buffer 128 KB
Data Transfer Rate
Sustained

Burst

150 KB/sec (single)
2100 - 4800 KB/sec (8X-16X variable)
16.67 MB/sec
Interface Cable Length (Max) 18 in
Startup Time
Single
Multi-session

< 7 sec
< 30 sec
Stop Time < 4 sec

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DVD Drive Specifications

DVD Drive

Applicable Disc
DVD-5, DVD-9, DVD-10, DVD-18
CD-ROM
CD-DA
CD-XA
Photo CD
CD-I Ready
CD-Bridge
CD-R


Mode 1 and Mode 2
Audio
Mode 2, Form 1 and 2
Single and Multiple Session
Block Size
CD-ROM Mode 0
CD-ROM Mode 1
CD-ROM Mode 2
DVD

2352 bytes
2352, 2340,2336, 2048 bytes
2352,2340, 2336, 2048 bytes
2048 bytes
Center Hole 15 mm diameter
Diameter 12 cm, 8 cm
Thickness 1.2 mm
Track Pitch 1.6 µm
Laser
Beam Divergence
Output Power
Type
Wave Length

53.5 degrees +/- 1.5 degrees
5 mW
Semiconductor laser GaAIAs
650 nm +/- 25 nm (DVD)
795 nm +/- 25 nm (CD)
Access Time
Random
Full Stroke
DVD
< 150 ms
< 225 ms
CD
< 100 ms
< 225 ms
Audio Output Level
Line Out
Headphone

1.0 V (RMS) at 47 kW
0.7 V (RMS) at 32 W
Cache Buffer 128 KB
Sustained Data Transfer Rate

150 KB/sec (single, CD-ROM mode)
1200-3000 KB/sec (20× CAV CD-ROM mode)
2760 KB/sec (DVD mode)
Interface Cable Length (Max) 18 in
Startup Time < 15 sec
Stop Time < 2 sec

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56 K Modem Specifications

Modem 56 Kbps

Maximum Data Speed (Kbps) 56 Kbps*
Maximum Fax Speed 14.4 Kbps
Data V.90, K56flex, V.34 (33.6 Kbps), V32terbo (19.2 Kbps), V.32bis (14.4 Kbps), V.32, V.22bis, V.22, V.21, Bell 212A, Bell 103
Error Correction V.42bis, V.42, LAPM, and MNP 2-5
Fax V.17, V.29, V.27ter, V.21 Channel 2, Class 1 command set, Group III FAX
* Both K56flex and V.90 are designed only to allow faster downloads from K56Flex or V.90-compliant digital sources. Maximum achievable download transmission rates are currently unknown, may not reach 56 Kbps, and will vary with the line condition.

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33.6 Kbps Modem Specifications

Modem 33.6 Dfi (upgradable to 56K)

Maximum Data Speed (Kbps) 33.6 DFi, upgradable to 56K
Maximum Fax Speed 14.4 Kbps
Data V.34 (33.6 Kbps), V.32terbo (19.2 Kbps), V.32bis (14.4 Kbps), V.32, V.22bis, V.22, V.21, Bell 212A, Bell 103
Error Correction V.42bis, V.42, LAPM, and MNP 2-5
Fax V.17, V.29, V.27ter, V.21 Channel 2, Class 1 command set, Group III FAX

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