NEC POWERMATE PROFESSIONAL 9000 Service Manual page 64

1-46 Technical Information
Table 1-24 9.1-GB Seagate Cheetah SCSI Hard Disk Drive Specifications
Feature
Required voltages
Start Up
+5 VDC
+12 VDC
Idle Mode
+5 VDC
+12 VDC
Random Seek
Temperature
(non-condensing)
RelativeHumidity
(non-condensing)
Altitude
MTTF
Dimensions
Table 1-25 4.55-GB Quantum Viking SCSI Hard Disk Drive Specifications
Feature
Hard Disk Drive
Physical Configuration
Formatted Capacity
Rotational Speed
Number of Disks
Data Surfaces
Number of R/W Heads
Seek Times
Track to Track, Read/Write
Average, Read/Write
Average Latency
Rotation Speed
Specification
Current (amps, average)
0.93
2.44
0.80
1.34
0.83
1.70
Operating: 5 to 50 C (41 to 122 F)
Non-operating: -40 to 70 C (-40 to 158 F)
Operating: 5% to 90%, maximum wet bulb 82.4 F (28 C)
Non-operating: 5% to 95%, maximum wet bulb 82.4 F
(28 C)
Operating: -305 m to 3050 m (-1000 to 10,000 ft.)
Non-operating: -305 m to 12,200 m (-1000 to 40,000 ft.)
1,000,000 hours
Height: 1.0 inches (25.4 mm)
Width: 4.0 inches (101.6 mm)
Depth: 5.75 inches (146.05 mm)
Weight: 1.3 lb. (.588 kg)
Specification
4.55-GB Quantum Viking VK45W012-04-G
4.557 GB
7200 rpm
4
8
8
1.0/1.0 ms
8.0/9.0 ms
4.17 ms
7200 RPM
Total Power (watts, average)
43.29
20.08
24.70