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Chapter 2 System Overview
Compaq D315 and hp d325 Personal Computers
Featuring the AMD Athlon XP Processor
Second Edition – March 2003
2-16
Table 2-10. Optical Drive Specifications
Table 2-10.
Optical Drive Specifications
Parameter 48x CD-ROM 16/10/40x CD-RW Drive
Part number 232320-001 281749-001
Interface Type IDE IDE
Media Type (reading)
Mode 1,2, Mixed Mode, CD-DA,
Photo CD, Cdi, CD-XA
Mode 1,2, Mixed Mode, CD-DA,
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:
Mode 1, 12 cm
Mode 2, 12 cm
8 cm
540 MB
650 MB
180 MB
650 MB @ 12 cm
180 cm
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
Output Power
Type
Wave Length
53.5 +/- 1.5 °
53.6
0.14 mW
GaAs
790 +/- 25 nm
53.5 + 1.5°
53.6 0.14 mW
GaAs
790 +/- 25 nm
Average Access Time:
Random
Full Stroke
<100 ms
<150 ms
<120 ms
<200 ms
Audio Output Level 0.7 Vrms 0.7 Vrms
Cache Buffer 128 KB 128 KB
Table 2-11. Hard Drive Specifications
Table 2-11.
Hard Drive Specifications
Parameter 20.0 GB 20.0 GB 40.0 GB 40.0 GB
Part Number 249408-001 260671-001 236421-001 286692-001
Drive Size 3.5” 3.5” 3.5” 3.5”
Interface UATA/100 UATA/100 UATA/100 UATA/100
Transfer Rate 100 MBps 100 MBps 100 MBps 100 MBps
Drive Protection System Support? Yes Yes Yes Yes
Typical Seek Time (w/settling) [1]
Single Track
Average
Full Stroke
2.0 ms
12.8 ms
28.5 ms
1.2 ms
8.0 ms
18 ms
1.5 ms
10.5 ms
23 ms
1.2 ms
8.0 ms
18 ms
Disk Format (logical blocks) 39,102,336 39,102,336 39,102,336 78,165,360
Rotation Speed 5400 RPM 7200 RPM 5400 RPM 7200 RPM
Drive Fault Prediction SMART III SMART III SMART III SMART III
NOTE:
Actual times may vary depending on specific drive installed.