NEC POWERMATE 5100 - SERVICE, Руководство по обслуживанию

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Specifications 10-11
6.4-GB Quantum Fireball ST Hard Drive Specifications
Feature Specification
Track-to-track: 2.0 ms typical
Average write: 11.0 ms typical; 13.0 ms max.
Full stroke: 20.0 ms typical; 24.0 ms max.
Data transfer rate
Disk to read buffer: 78 Mb/sec. min.; 132 Mb/sec. max
Read buffer to IDE bus (PIO Mode with IORDY):
16.7 MB/sec. max.
Read buffer to IDE bus (Ultra ATA Mode):
33 Mb/sec. max.
Buffer Size 128 KB
Power +5V +/-5%; 100 mV peak-to-peak allowable ripple/noise
12V +/-10%; 250 mV peak-to-peak allowable ripple/noise
Temperature (non-condensing)
Operating: 5
°
to 55
°
C (41
°
to 131
°
F)
Non-operating: -40
°
to 65
°
C (-40
°
to 149
°
F)
Humidity (non-condensing)
Operating: 5% to 85% rh, 30
°
C (86
°
F)
Non-operating: 5% to 95% rh, 40
°
C (104
°
F)
Altitude Operating: -200 m to 3,000 m (-650 to 10,000 ft.)
Non-operating: -200 m to 12,000 m (-650 to 40,000 ft.)
Dimensions Height: 1.0 inches (25.4 mm)
Width: 4.0 inches (101.6 mm)
Depth: 5.75 inches (146.1 mm)
8.4-GB Quantum Hard Drive Specifications
The specifications for the 8.4-GB Quantum Fireball SE hard drive are included
in the following table.
8.4-GB Quantum Fireball SE Hard Drive Specifications
Feature Specification
Hard Drive 8.4-GB Quantum Fireball SE
Formatted Capacity
Nominal Rotational Speed
Number of Disks
Number of R/W Heads 8400 MB
5,400 rpm
4
8
Sectors Sectors per drive: 12,594,960
Bytes per sector: 512
Recording Recording technology: Multiple Zone
Maximum linear density: 208,147 fci (max)
Encoding method: 16/17 PRML
Track density: 8400 tpi
Maximum effective areal density: 1645 Mbits/in
2
Performance Seek times
Track-to-track: 2.0 ms typical