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2.5
Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See
2.5.1
Power consumption
Power requirements for the drives are listed in
drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient temperature.
Table 5 DC power requirements (8TB)
Voltage
Regulation
Avg Idle Current *
Advanced Idle Current *
Idle_A
Idle_B
Idle_C
Standby
Maximum Start Current
DC (peak DC)
AC (Peak DC)
Delayed Motor Start (DC max)
Operating current (random read 4K16Q)
Typical DC
Maximum DC
Operating current (random write 4K16Q)
Typical DC
Maximum DC
Operating current (sequential read 64K16Q)
Typical DC
Maximum DC
Operating current (sequential write 64K16Q)
Typical DC
Maximum DC
Power Governor Operating current (random read 4K16Q)
Typical DC
Maximum DC
Power Governor Operating current (random write 4K16Q)
Typical DC
Maximum DC
Power Governor Operating current (sequential read 64K16Q)
Typical DC
Maximum DC
Power Governor Operating current (sequential write 64K16Q)
Typical DC
Maximum DC
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels.
Seagate Exos 7E8 SATA Product Manual, Rev. B
through
8. Typical power measurements are based on an average of
Table 5
Table
+5V
± 5%
0.228
0.229
0.172
0.166
0.156
0.739
0.856
0.20
0.402
0.405
0.296
0.297
0.723
0.73
0.561
0.564
0.404
0.405
0.299
0.30
0.724
0.731
0.562
0.565
Figure 5 on page
6.0Gb mode
+12V
Watts
Total
0.523
7.42
0.527
7.47
0.444
6.19
0.231
3.61
0.007
0.86
2.137
2.90
0.028
0.90
12.80
0.905
12.88
0.606
8.76
0.613
8.85
0.566
10.40
0.571
10.50
0.564
9.57
0.568
9.64
0.822
11.88
0.826
11.93
0.569
8.33
0.576
8.41
0.564
10.39
0.569
10.48
0.561
9.54
0.565
9.61
27.
10
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