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Windows 7: New Power-Saving DevSleep Feature Added To SATA Specification


06 Jan 2012   #1
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 
New Power-Saving DevSleep Feature Added To SATA Specification

Quote:
More power is a good thing when you’re talking desktops, but for notebooks, more power means less battery life – and in this age of Ultrabooks and ultraportables, that just isn’t acceptable to a lot of manufacturers. In yet another step towards making those Ultrabooks ultra long lasting, the SATA-IO organization announced a new feature yesterday: SATA DevSleep. Basically, DevSleep lets PHY and other circuitry drop into an almost completely powerless state – rather than a still power-consuming “Partial” or “Slumber” state – when it isn’t being used.
Read more at:
Maximum PC | New Power-Saving DevSleep Feature Added To SATA Specification

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08 Jan 2012   #2

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
 
 

Nice improvement, soon there will be no need to turn off any computer.
Which will result in an instant on system.
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08 Jan 2012   #3

Win7 64bit Ultimate
 
 

Quote   Quote: Originally Posted by Dave76 View Post
Nice improvement, soon there will be no need to turn off any computer.
Which will result in an instant on system.
It doesn't matter if something is completely off or on as far as start up goes. Power travels so fast that it would slow the process down by a millisecond at best.

It is devices that require mechanical components to come up to speed like a standard HDD spinning up etc. Once everything becomes solid state and software load times come way down as seen with win8 you will see instant on devices. If you had a laptop with an SSD and win8 it would come pretty close to being instant on right now.

The advantage of this as a power saving option to simply allow constant on devices is spectacular though. Power cycling electronics can be harsh in certain climates and allowing them to run constant would be a great thing indeed. But for the rest of us we see a bigger advantage in being able to utilize a device while away or save power to prolong battery life or save money.

Either way many benefits and almost no cons to speak of.
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 New Power-Saving DevSleep Feature Added To SATA Specification




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