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.