Seagate ST340015ACE manual Barracuda 5400.1 Product Manual, Rev. G Power consumption, Spinup power

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Barracuda 5400.1 Product Manual, Rev. G

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2.9.1Power consumption

Power requirements for the drives are listed in the table on page 10. 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.

•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.

•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-msec delay, then a 16-sector read followed by a 32- msec delay.

•Operating power and current

Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each 10 reads) and 20 percent drive idle mode.

•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.

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Contents Page Page Page Page Contents Barracuda 5400.1 Product Manual, Rev. G Seagate Technology support servicesList of Figures Barracuda 5400.1 Product Manual, Rev. G Introduction Barracuda 5400.1 Product Manual, Rev. G Specification summary table Drive specificationsDrive specification ST340015ACE 50,000 Humidity SeaShield Physical organization Default logical geometryLBA mode ATA Physical characteristicsSeek time Power specificationsStart/stop times Typical seek times msec Read WriteSpinup power Barracuda 5400.1 Product Manual, Rev. G Power consumptionSeek mode Read/write power and currentBarracuda 5400.1 Product Manual, Rev. G Typical 5V startup and operation current profile Active mode Power-management modesIdle mode Conducted noiseEnvironmental specifications Ambient temperature Sleep modeIdle and Standby timers Wet bulb temperature Temperature gradientHumidity Relative humidity AltitudeOperating shock Barracuda 5400.1 Product Manual, Rev. G ShockNonoperating shock VibrationAcoustics Acoustic modeFluid Dynamic Bearing FDB motor acoustics Model Idle Quiet seek Performance seekPerformance Reference Test Description Level Standard ReliabilityKorean RRL Agency certification Safety certificationElectromagnetic compatibility FCC verification Barracuda 5400.1 Product Manual, Rev. G Handling and static discharge precautions Configuring and mounting the driveBreather filter hole location Breather filter hole precautionsCable select option Drive as master with a non-ATA-compatible slaveDrive mounting Ultra ATA/100 cableMaster SlaveMounting dimensions-top, side and end view Barracuda 5400.1 Product Manual, Rev. G ATA interface ATA interface signals and connector pinsO pins and supported ATA signals EC H Command name Command code in hex ATA-standard commandsCommand name Command code in hex ATA-standard security commands Identify Device command0C5AH Word Description ValueXxxxH Xx3FH Description if bit is set to Bit 0CH Set Features commandF1H Report full capacity available Code in features Register A.R.T. command 4 S.M.A.R.T. commandsInternet MySeagate Seagate Technology support services Online Services40Barracuda 5400.1 Product Manual, Rev. G Automated Phone ServicesUSA/Canada/Latin America Support Services Africa/Middle East Support Services European Support ServicesAsia/Pacific Support Services Barracuda 5400.1 Product Manual, Rev. G Index GMR Barracuda 5400.1 Product Manual, Rev. G 48Barracuda 5400.1 Product Manual, Rev. G Page Seagate Technology LLC

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