Maxtor ST3250312CS, ST31000424CS, ST3500312CS, ST3500414CS, ST31000322CS manual Power specifications

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2.8Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 3 on page 20.

2.8.1Power consumption

Power requirements for the drives are listed in the table on page 9. 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.

• 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.

• Operating (CE seek profile)

Operating power is measured by simulating a typical PVR operating environment, using a 50% write 50% read algorithm.

• 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 3:	DC power requirements

Power dissipation (1TB models)		Avg (watts 25° C)	Avg 5V typ amps	Avg 12V typ amps

Spinup		—	—	2.0 (peak)

Idle*		3.834	0.223	0.226

Operating		4.107	0.295	0.219

Standby		0.699	0.121	0.008

Sleep		0.811	0.131	0.012


Power dissipation (500 and 250 GB models)		Avg (watts 25° C)	Avg 5V typ amps	Avg 12V typ amps

Spinup		—	—	2.0 (peak)

Idle*		3.008	0.248	0.147

Operating		3.445	0.316	0.155

Standby		0.707	0.127	0.006

Sleep		0.742	0.134	0.006

*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.

Note. Drive supports PHY layer power management. When enabled, a power savings of ~300mw can be achieved in Idle, Standby and Sleep modes.

10	Pipeline HD.2 Series SATA Product Manual, Rev. A

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Contents Pipeline HD.2 Series Sata Revision history Revision DateContents Pipeline HD.2 Series Sata Product Manual, Rev. a List of Figures Page Introduction About the Serial ATA interface Drive specifications Specification summary tablesDrive specifications summary for 1000 Gbyte models Drive specification ST31000424CS ST31000322CSPipeline HD.2 Series Sata Product Manual, Rev. a Drive specifications summary for 500 and 250 Gbyte models Drive specification ST3500414CS ST3500312CS ST3250312CSPipeline HD.2 Series Sata Product Manual, Rev. a Default logical geometry LBA modeFormatted capacity Recording and interface technologySeek time Physical characteristicsStart/stop times Power specifications Conducted noise Typical current profilesVoltage tolerance Power-management modes Active modeIdle mode Sleep modeEnvironmental specifications Shock Operating shockNonoperating shock VibrationDrive A-weighted Sound Power Levels SWL, BA Acoustics emissionsElectromagnetic immunity Test for Prominent Discrete Tones PDTsSafety certification ReliabilityAgency certification Annualized Failure Rate AFRAustralian C-Tick N176 Korean RRLFCC verification Corrosive environment Environmental protectionChina Restriction of Hazardous Substances RoHS Directive Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions for 1000 GB models Drive mountingMounting dimensions for 500 and 250 GB models Serial ATA Sata interface Hot-Plug compatibilitySerial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal Pin Function DefinitionSupported ATA commands Supported ATA commandsCommand name Command code in hex F4H Identify Device command Word Description ValueXx07H Description if bit is set to Bit Word Bit WordWord Set Features command Set Features command valuesA.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command Seagate Technology support services InternetPresales Support Technical SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index ITE Page Pipeline HD.2 Series Sata Product Manual, Rev. a Page Seagate Technology LLC