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These can be selected by the SATA AHCI driver, usually via a configuration option, or by the OS Power
Options. Windows Vista and later allows the tweaking of AHCI LPM modes through a registry hack.
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as the drive must be re-activated and brought back on-line before it can be used, and this will often appear as a delay to the end-user.
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to enter a low-power state during periods of inactivity, thus saving energy. The drawback to this is increased periodic
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with a maximum return latency of 20 milliseconds unless otherwise specified in
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When enabled via the AHCI controller, this allows the SATA
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248:"Serial ATA AHCI: Specification, Rev. 1.3"
335:"Designing Energy Efficient SATA Devices"
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131:Advanced Host Controller Interface
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227:Active State Power Management
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181:with two internal states
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217:Energy Star
149:Description
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285:31 October
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234:References
135:Serial ATA
96:March 2013
66:newspapers
306:4 January
179:Low Power
211:See also
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187:Slumber
183:Partial
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165:States
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