Chapter 3
85
Interface Boards and Mass-Storage
Drivers
Mass-Storage Drives
• Photo-CD Multisession.
• CD Audio disk.
• Mixed mode CD-ROM disk (data and audio).
• CD-ROM XA, CD-I, CD-Extra, CD-R, CD-RW.
Table 3-9. IDE 32X CD-ROM Drive
Description
HP product number
D4384A
Disk Diameter
120mm
Data Block Size
2,048 bytes (Mode-1)
2,336 bytes (Mode-2)
Storage Capacity
650 Mbytes (Mode-1)
742 Mbytes (Mode-2)
Read Mode
Full CAV
1
14X to 32X
1.
CAV = Constant Angular Velocity
Burst Transfer Rate
PIO mode 4 - 16.6 Mbytes/s maximum
Single Word DMA Mode 2 - 8.3 Mbytes/s maximum
Multi Word DMA Mode 2 - 16.6 Mbytes/s maximum
Access Time
Average Stroke (1 / 3) 110 ms
Full Stroke 180 ms
Data Error Rate
Less than 10-12 (Mode-1)
Less than 10-9 (Mode-2)
2
2.
It is assumed that raw error rate of disk is 10-3 in the worst case. This excludes “retries.”
Spin Up Time
From standby mode. Typical 6s to drive ready mode.
With tray loading. Typical 8.5s to drive ready mode.
3
3.
Photo-CD (Multisession) is not applicable.
Buffer Memory Size
128 kbytes
Summary of Contents for X Class 500/550MHz
Page 6: ...6 Contents ...
Page 8: ...8 Figures ...
Page 15: ...15 1 System Overview ...
Page 66: ...66 Chapter2 System Board Devices on the ISA Bus ...
Page 96: ...96 Chapter3 Interface Boards and Mass Storage Drivers Connectors and Sockets ...
Page 134: ...134 Chapter5 Tests and Error Messages Beep Codes ...
Page 135: ...135 A Regulatory Information and Warranty ...
Page 146: ...146 AppendixA Regulatory Information and Warranty HP Hardware Warranty ...