Seagate ST3250824ACE manual Power specifications, Power consumption, Spinup power, Seek mode

2.8Power specifications

The drive receives DC power (+5V and +12V) through a four-pin standard drive power connector.

2.8.1Power consumption

Power requirements for the drives are listed in the table on page 13. 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 ambi- ent temperature.

•Spinup power

Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating speed.

•Seek mode

During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and does not execute a read or write operation. Servo electronics are active. Seek mode power represents the worst- case power consumption, using only random seeks with read or write latency time. This mode is not typical and is provided for worst-case information.

•Operating power and current

Operating power is measured using a standard Consumer Storage Profile.

•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.

Table 4:	DC power requirements
Power dissipation (watts)		Models	Average	5V typ	12V typ
			(watts, 25° C)	amps	amps
Spinup		All	—	—	2.0 (peak)
Idle		All	8.00	0.353	0.519
		500GB, 400GB	9.20
Operating (Consumer Storage Profile)				0.587	0.520
		300GB, 250GB, 200GB,	9.25
		160GB, 120GB and 80GB
		500GB, 400GB, 300GB,	4.88
Operating (PVR Storage Profile)		250GB and 200GB		0.39	0.41
		160GB, 120GB and 80GB	4.91
		500GB, 400GB	12.60
Seeking				0.613	0.795
		300GB, 250GB, 200GB,	12.40
		160GB, 120GB and 80GB
Standby		All	0.80	0.106	0.023
Sleep		All	0.80	0.106	0.023

DB35 Series 7200.2 Product Manual, Rev. D 13