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Table 5
2TB drive DC power requirements
Voltage
Regulation
Avg idle current DCX
Advanced idle current
Idle A
Idle B
Idle C
Standby
Maximum starting current
(peak DC) DC
(peak AC) AC
Delayed motor start (max) DC
Peak operating current (random read):
Typical DCX
Maximum DC
Maximum (peak) DC
Peak operating current (random write)
Typical DCX
Maximum DC
Maximum (peak) DC
Peak operating current (sequential read)
Typical DCX
Maximum DC
Maximum (peak) DC
Peak operating current (sequential write)
Typical DCX
Maximum DC
Maximum (peak) DC
Seagate Enterprise Capacity 3.5 HDD v4 SAS Product Manual, Rev. G
6.0Gb mode
Notes
(Amps)
(Amps)
+5V
+12V [2]
[5]
± 5% [2]
[1] [7]
0.30
3s
0.31
3s
0.29
3s
0.31
3s
0.28
3s
[3]
0.54
3s
[3]
0.70
3s
[1] [4]
0.28
[1] [6]
0.41
3s
[1]
0.43
3s
1.23
[1]
0.41
3s
[1]
0.44
3s
1.50
[1]
0.72
3s
[1]
0.75
3s
0.98
[1]
0.61
3s
[1]
0.65
3s
0.82
(Watts)
(Amps)
+5V
± 5% [2]
0.26
4.57
0.32
0.26
4.60
0.32
0.23
4.21
0.32
0.15
3.32
0.32
0.01
1.51
0.30
2.03
27.06
0.58
2.61
34.82
0.76
0.10
2.60
0.31
0.59
9.10
0.43
0.61
9.47
0.45
2.33
34.11
1.22
0.44
7.35
0.43
0.58
9.16
0.46
2.15
33.30
1.36
0.27
6.86
0.73
0.29
7.23
0.78
1.99
28.78
1.24
0.29
6.51
0.63
0.30
6.85
0.66
2.91
39.02
0.88
12.0Gb mode
(Amps)
(Watts)
+12V [2]
0.26
4.67
0.26
4.67
0.23
4.32
0.15
3.42
0.01
1.61
2.03
27.26
2.63
35.36
0.11
2.87
0.58
9.17
0.60
9.45
2.18
32.26
0.44
7.44
0.59
9.38
2.28
34.16
0.27
6.94
0.28
7.26
3.21
44.72
0.29
6.61
0.30
6.90
2.73
37.16
28
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