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Windows 7: Do Windows HDD power settings have any effect on SSDs?

05 Oct 2016   #1
Carson Dyle

Win7 Pro x64 SP1
Do Windows HDD power settings have any effect on SSDs?

Was wondering whether or not Windows 7 power settings actually do anything to a system SSD? If I have a system set to turn off the "hard drives" after 20 minutes, but have Sleep disabled, is it any slower to awaken from having the disk turned off when that disk is an SSD? And is there actually an power savings to be had when doing so?

My System SpecsSystem Spec
05 Oct 2016   #2

64-bit Windows 10 Pro

Hello Carson, :)

Nope. They will not affect SSDs. Only HDDs.

Hard Drive - Turn Off Hard Disk After Idle or Never

It depends on how often you access the HDD, and how long the HDD stays turned off for how much power you may save. Either way, the more you save the better. It can add up to save a little bit on your electric bill for the year.

There is a delay of a few moments as the HDD spins back up when trying to access it after it has been turned off. If you do this often, then it can get annoying. You would just need to adjust your settings to fit your needs to help with this though.
My System SpecsSystem Spec
06 Oct 2016   #3

Windows 7 HP 64

On a Power Saving mode, disks aren't actually powered down. In this state the drive is still on, only the disk motor is stopped. That's explain the time it takes to "wake up". This "wake up" time is the time required to spin up the disk.
As SSD has no disk to spin up / down, it doesn't make any difference to set it to "turn off".
My System SpecsSystem Spec

06 Oct 2016   #4

Windows 7 Pro 64 bit

SSDs have power saving modes but unlike conventional drives the transition time is very fast. Because this is so fast power management is done internally without help from the OS or user.
My System SpecsSystem Spec
06 Oct 2016   #5

Win-7-Pro64bit 7-H-Prem-64bit

I would use a performance power plan and select Never for hard drive.

You can read about other stuff here,
SSD Tweaks and Optimizations in Windows 7

If it's samsung ssd they make it pretty easy with samsung magician to do these tweaks and of course updating the ssd's firmware :)
My System SpecsSystem Spec

 Do Windows HDD power settings have any effect on SSDs?

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