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Video 3.5 HDD Product Manual, Rev. H 15
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Drive Specifications
2.8 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. (Refer to Figure 3 ).
2.8.1 Power consumption
Power requirements for the drives are listed in Table 2 on page 15. Typical power measurements are based on an
average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient
temperature.
• Spinup power
Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating
speed.
• Read/write power and current
Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-ms delay,
then a 16-sector read followed by a 32-ms delay.
• Operating power and current (CE profile)
Operating power is measured by simulating a typical PVR operating environment, using a 50% write, 50%
read algorithm.
• Idle mode power
Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in a
random track location.
• Standby mode
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/
write electronics are in power-down mode.
*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.
†5W IDLE, Standby and Sleep,with DIPLM enabled
Table 3 DC power requirements for 1TB models
Spinup
Idle* †
Operating
Standby
Sleep
*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. Measurement was taken in Idle 1 mode.
†5W IDLE, Standby and Sleep,with DIPLM enabled
Table 2 DC power requirements for 2TB models
Power dissipation (2-disk values shown) Avg (watts 25°C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0
Idle* † 3.7418 0.221 0.219
Operating 5.05 0.302 0.295
Standby 0.819 0.15 0.005
Sleep 0.819 0.15 0.005
Power dissipation (1-disk values shown) Avg (watts 25°C) Avg 5V typ amps Avg 12V typ amps
— — 2.0
2.502 0.152 0.145
3.676 0.385 0.145
0.819 0.15 0.005
0.819 0.15 0.005