Compaq AP550 Compaq Professional Workstation AP550 Maintenance & Service G - Page 170
CD-ROM Drive, Table 7-12, 40X Max Tray-Load CD-ROM Drive IDE
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7-14 Compaq Professional Workstation AP550 Maintenance and Service Guide CD-ROM Drive Disk Diameter Capacity Mode 1 Mode 2 Disk thickness Track pitch Performance Access Time Random seek Full stroke seek Data transfer rate Sustained Burst Bus rate Cache/buffer Start-up time Single Multisession Stop-time Error rates Soft error Hard error Seek error Dimensions Chassis Height Width Depth Weight Bezel Height Width Depth Table 7-12 40X Max Tray-Load CD-ROM Drive (IDE) 12 cm 540 MB 650 MB 1.2 mm 1.6 µm
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
ยต
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