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Appendix C
Hard Disk Drive Specifications and
Jumper Settings
This appendix provides specifications and jumper settings for the Western Digital 1.2-GB
hard disk drive used in the PowerMate Ve series computer configurations.
The standard IDE hard disk drives are mounted in the bottom front bay of the chassis. The
drive is connected via a two-connector IDE cable to the primary IDE channel on the system
board. The hard drive is set as the master device on the primary IDE channel.
The drive is auto-configurable, meaning that once the master/slave jumpers are set, the hard
disk type is automatically detected by the system and the remaining drive parameters are
automatically set by the system. (See Section 2, Setup and Operation, for information on
auto setup using the Autotype Fixed Disk parameter.)
NEC part numbers for the hard drives are provided in Section 5, System Unit Repair.
1.2-GB HARD DISK DRIVE SPECIFICATIONS AND JUMPER SETTINGS
Specifications for the 3 1/2 inch IDE hard disk drive are given in Table C-1. Jumper settings
are described following Table C-1.
Table C-1 Specifications for 1.2-GB Hard Disk Drive
Features
Western Digital WDAC21200 1.2-GB Hard Disk Drive
Physical Configuration
Formatted Capacity
1.278 GB
Actuator Type
Rotary voice-coil
Number of Disks
3
Data Heads
6
Servo Type
Embedded
Tracks per Inch (tpi)
3,849 tpi
Bytes per Sector
512
Maximum Data Rate from Media
45.4 MB/second
Dimensions (H x D x W)
1.0 x 5.75 x 4.00 in. (25.4 x 146.2 x 101.6 mm)
Weight
1.3 lb. (589 grams)