NEC MT-2550-24874C, Руководство по обслуживанию

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Appendix C
Hard Disk Drive Specifications
This appendix provides specifications and jumper settings for the following hard disks used
in the PowerMate Professional Series computer configurations:
„
Quantum Stratus 3.2-GB
„
Seagate 4.35-GB.
NECCSD part numbers for the hard drives are provided in Section 5.
The IDE hard drive installed in some models is set as the master device on the primary IDE
connector. The drive is connected via a three-connector IDE cable to the system board.
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.)
HARD DISK DRIVE SPECIFICATIONS
Table C-1 provides specifications for the 3 ½-inch Quantum hard disk. Table C-2 provides
specifications for the 4.35-GB Seagate SCSI hard disk. Hard disk jumper settings are
described in Section 1.
Table C-1 Quantum 3.2-GB Hard Disk Specifications
Item Specification
Formatted capacity 3228 MB
Nominal rotational speed (rpm) 5,400
Number of Disks 2
Number of R/W data heads 4
Data organization:
Zones per surface
Tracks per surface
Total tracks
15
7,066
28,264
Sectors per track:
Inside zone
Outside zone
Total user sectors
Bytes per sector
Number of cylinders
154
277
6,306,048
512
4