"Turn off hard disk" Power Setting for SSD

A

AmsterDan

New Member
Good day,

After reading many articles on the subject of "Turn off hard disk" power setting regarding a SSD, I've gotten even more confused. Some questions arose and I thought what better crowd to ask then the one here at Computer Forum.

1. Is it necessary to 'power off' a SSD?
2. How does it affect TRIM function?
3. Is it better to 'sleep' or 'hibernate' when running a SSD?

Thanks in advance!
 
1) Not really, they don't have rotational platters and use sub 1w of power at idle.
2) Irrelevant since you'd just leave it on ;)
3) Whatever usage pattern you'd prefer, hibernate stores your RAM data in the event of a power loss while sleep doesn't.
 
Thanks Beers!

1. That's what I thought but needed the confirmation to be sure about it.
2. Some people wrote that the TRIM function would not work when the SSD is on at all times. Thought that was strange in and of itself.
3. Is there a difference in power consumption with hibernating your notebook compared to letting the machine sleep?
 
AmsterDan said:
3. Is there a difference in power consumption with hibernating your notebook compared to letting the machine sleep?
Click to expand...

Miniscule at best. If it's going to be off for a length of time that it would be an issue, you'll probably be shutting it down anyway.
 
AmsterDan said:
2. Some people wrote that the TRIM function would not work when the SSD is on at all times. Thought that was strange in and of itself.
3. Is there a difference in power consumption with hibernating your notebook compared to letting the machine sleep?
Click to expand...

For 2 it sounds like they don't know how these things work ;)

On 3 the sleep power draw is usually a watt or two, just enough to keep the data in RAM and CPU in a low power state. The difference between that and hibernate is the system turns completely off for hibernate, the RAM contents are stored on the hard drive before it shuts down. When you boot back up it reads the data back into RAM.

Usually it's faster to just turn off the PC and have a fresh boot :P
 
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