NEC POWERMATE PROFESSIONAL 9000 Service Manual page 70

1-52 Technical Information
Table 1-28 8.4-GB Quantum Fireball IDE Hard Disk Drive Specifications
Feature
Data Transfer Rate
Buffer to Disk (Mbits/sec)
Buffer to Host (Mbits/sec)
Interleave
Buffer Size
Power On To Ready (Typical)
Power On To Ready (Maximum)
Spindle Stop Time (Typical)
Spindle Stop Time (Maximum)
Start/Stop Cycles (Minimum)
Formatted Capacity
Number of Disks
Number of R/W Heads
Data Surfaces
Required voltages
Start Up
+5 VDC
+12 VDC
Idle Mode
+5 VDC
+12 VDC
Random Seek
+5 VDC
+12 VDC
Standby
+5 VDC
+12 VDC
Temperature
(non-condensing)
RelativeHumidity
(non-condensing)
Altitude
MTTF
Dimensions
Specification
158 (maximum)
33 (maximum)
1:1
128 KB
15 seconds
45 seconds
9 seconds
15 seconds
40,000
8445 Mbytes
4
8
8
Current (amps, average)
.650
1.65
.420
.320
.520
.880
.170
.018
Operating: 5 to 55 C (41 to 131 F)
Non-operating: -40 to 65 C (-40 to 167 F)
Operating: 5% to 85%, Maximum Wet Bulb 86 F
(30 C)
Non-operating: 5% to 95%, Maximum Wet Bulb 104 F
(40 C)
Operating: -198.25 m to 3050 m (-650 to 10,000 ft.)
Non-operating: -198.25 m to 12,200 m (-650 to 40,000 ft.)
500,000 hours
Height: 1.0 inches (25.4 mm)
Width: 4.0 inches (101.6 mm)
Depth: 5.74 inches (146.1 mm)
Total Power (watts, average)
23.05
5.94
13.16
1.07