Compaq Deskpro AP550 - CD-ROM Drive

7-14
Compaq Professional Workstation AP550 Maintenance and Service Guide
CD-ROM Drive
Table 7-12
40X Max Tray-Load CD-ROM Drive (IDE)
Disk
Diameter 12 cm
Capacity
Mode 1
Mode 2
540 MB
650 MB
Disk thickness 1.2 mm
Track pitch
1.6
µ
m
Performance
Access Time
Random seek
Full stroke seek
<100 ms
<150 ms
Data transfer rate
Sustained
Burst
150 KB/s
2550 to 6000 KB/s (17x to 40x variable)
Bus rate 4.0 MB/s
Cache/buffer 128 KB/s
Start-up time
Single
Multisession
<7 s
<30 s
Stop-time < 4 s
Error rates
Soft error
Hard error
Seek error
10
-
9
10
-
12
10
-
6
Dimensions
Chassis
Height 41.3 mm
Width 146.0 mm
Depth 203.0 mm
Weight 1200 g
Bezel
Height 148.0 mm (+/- 0.5 mm)
Width 42.0 mm (+/- 0.5 mm)
Depth 5.0 mm (+/- 0.5 mm)
continued