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Advanced Configuration and Power Interface (ACPI) is an open standard that operating systems can use to discover and configure computer hardware components, to perform power management (e.g. putting unused hardware components to sleep), auto configuration (e.g. Plug and Play and hot swapping), and status monitoring.
On PCs that enable Modern Standby, Hybrid sleep feature is unavailable. In older versions prior to Windows Vista, sleep mode was under-used in business environments as it was difficult to enable organization-wide without resorting to third-party software. [3] As a result, these earlier versions of Windows were criticized for wasting energy. [4]
Windows 2000 is the first Windows to support hibernation at the operating system level (OS-controlled ACPI S4 sleep state) without special drivers from the hardware manufacturer. A hidden system file named " hiberfil.sys " in the root of the boot partition is used to store the contents of RAM when the computer hibernates.
DevSlp or DevSleep (sometimes referred to as device sleep or SATA DEVSLP) is a feature in some SATA devices which allows them to go into a low power "device sleep" mode when sent the appropriate signal, which uses one or two orders of magnitude less power than a traditional idle (about 5 mW, [1] but some drives can get as low as 2.5 mW [2]).
Toshiba calls it USB Sleep-and-Charge. [86] On Acer Inc. and Packard Bell laptops, sleep-and-charge USB ports are marked with a non-standard symbol (the letters USB over a drawing of a battery); the feature is called Power-off USB. [87] Lenovo calls this feature Always On USB. [88]
USB Attached SCSI (UAS) or USB Attached SCSI Protocol (UASP) is a computer protocol used to move data to and from USB storage devices such as hard drives (HDDs), solid-state drives (SSDs), and thumb drives. UAS depends on the USB protocol, and uses the standard SCSI command set.
Josh Allen got the win and a warning from referee Bill Vinovich on Sunday in Buffalo's wild-card win over the Denver Broncos. With the Bills leading early in the third quarter, Buffalo ran a pass ...
Device Sleep with a maximum return latency of 20 milliseconds unless otherwise specified in Identify Data Log; 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. [3] Hot swapping is disabled.