Chapter 2 System Overview

Table 2-9.Optical Drive Specifications

Table 2-9.

Optical Drive Specifications

Parameter

48x CD-ROM

16/10/40x CD-RW Drive

Interface Type

IDE

IDE

Media Type (reading)

Mode 1,2, Mixed Mode, CD-DA,

Mode 1,2, Mixed Mode, CD-DA,

 

Photo CD, Cdi, CD-XA

Photo CD, Cdi, CD-XA

Media Type (writing)

N/a

CD-R, CD-RW

Transfer Rate (Reads)

4.8 Kb/s (max sustained)

CD-ROM, 4.8 Kb/s;

 

 

CD-ROM/CD-R, 1.5-6 Kb/s

Transfer Rate (Writes):

N/a

CD-R, 2.4 Kbps (sustained);

 

 

CD-RW, 1.5 Kbps (sustained);

Capacity:

 

650 MB @ 12 cm

Mode 1, 12 cm

550 MB

 

Mode 2, 12 cm

640 MB

 

8 cm

180 MB

 

Center Hole Diameter

15 mm

15 mm

Disc Diameter

8/12 cm

8/12 cm

Disc Thickness

1.2 mm

1.2 mm

Track Pitch

1.6 um

1.6 um

Laser

 

 

Beam Divergence

53.5 +/- 1.5 °

53.5 + 1.5°

Output Power

53.6 0.14 mW

53.6 0.14 mW

Type

GaAs

GaAs

Wave Length

790 +/- 25 nm

790 +/- 25 nm

Average Access Time:

 

 

Random

<100 ms

<120 ms

Full Stroke

<150 ms

<200 ms

Audio Output Level

0.7 Vrms

0.7 Vrms

Cache Buffer

128 KB

128 KB

Table 2-10.Hard Drive Specifications

Table 2-10.

Hard Drive Specifications

Parameter

20.0 GB

32.0 GB

40.0 GB

60.0 GB

Drive Size

3.5”

3.5"

3.5”

3.5”

Interface

UATA/100

Ultra3 SCSI

UATA/100

UATA/100

Transfer Rate

100 MBps

160 MBps

100 MBps

100 MBps

Drive Protection System Support?

Yes

Yes

Yes

Yes

Typical Seek Time (w/settling) [1]

 

 

 

 

Single Track

1.2 ms

0.6 ms

1.2 ms

1.0 ms

Average

8.0 ms

4.7 ms

8.0 ms

9.0 ms

Full Stroke

18 ms

12 ms

18 ms

20 ms

Disk Format (logical blocks)

39,102,336

71,132,000

78,165,360

78,165,360

Rotation Speed

7200 RPM

10,000 RPM

7200 RPM

7200 RPM

Drive Fault Prediction

SMART III

N/a

SMART III

SMART III

NOTE:

Actual times may vary depending on specific drive installed.

All ATA drives are Quiet Drives.

2-20Compaq Evo and Workstation Personal Computers

Featuring the Intel Pentium 4 Processor

Second Edition – January 2003

Page 46
Image 46
Compaq W4000 manual Optical Drive Specifications, Hard Drive Specifications, Parameter 48x CD-ROM 16/10/40x CD-RW Drive