C-2 Hard Disk Drive Specifications and Jumper Settings
Table Appendix C-1 Hard Disk Drive Specifications
Features
1.6-GB Hard
Disk (CFS1621A)
2-GB Hard Disk
(ST32140A)
Dimensions
Height
Length
Width
1.0 in. (25.4 mm)
5.75 in. (146.1 mm)
4.00 in. (101.6 mm)
1.03 in. (25.4 mm)
5.79 in. (146.6 mm)
4.02 in. (102.1 mm)
Weight
1.3 lb (590 gm)
1.0 lb (454 gm)
Performance
Track-to-track seek
Average seek
Maximum seek
3 ms
14 ms
20 ms
2 ms
10 ms
28 ms
Average Latency
5.58 ms
8.3 ms
Rotation Speed
5376 rpm
3600 rpm
Data Transfer Rate
(buffer to disk)
67.7 MB/s max
34.8 MB/s max
Data Transfer Rate
(buffer to host)
16.6 MB/s, PIO Mode 4 16.6 MB/s, PIO Mode 4
Start/Stop Cycles
20,000 min
40,000 min
Buffer Size
256 KB
64 KB
Interface
IDE
IDE
1.6-GB HARD DISK DRIVE JUMPER SETTINGS
The 1.6-GB hard drive uses one user selectable jumper block (J4) to configure the
master/slave and cable select options of the hard drive. Jumper block J4 has two jumper
settings: CS (cable select), and C/D (master/slave select). The factory default is to have pins
1 and 2 jumpered (shorted) to set the drive as the master. See Table Appendix C-2 for
jumper settings.
Table Appendix C-2 1.6-GB Hard Disk Jumper Settings
Pins
Signal
Description
1 and 2
C/D
Open: Drive configured as slave.
Shorted: Drive configured as master
(default)
3 and 4
N/A
Reserved (not used)
5 and 6
CS
Open: Cable Select option disabled (default)
Shorted: Cable select option enabled
7 to 18
N/A
Reserved (not used)
