Newly installed ssd freezes mac after sleep
Hi, I just installed an old ssd of 256gb (original ssd from a 2015 macbook air) in my macbook pro (early 2015).
For some reason, the mac freezes after it has been asleep. Sometimes the keyboard lights up but there is only a black screen, and sometimes the screen lights up but everything just freezes. This has never happened before on the original 128 gb ssd. Sometimes it also freezes if I am using the mac but opening a program that has been in the background..
What might be the error here? Is it the ssd that is broken (I bought it, have not used it before) or is it something else?
I am using High Sierra. I Have tried to empty NVMe and SMC but it doesnt change anything and when running diagnostics it says that everything is fine. I am also running bootcamp and on windows it starts up fine after sleeping.
Any ideas?
Is this a good question?
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Here's a good reference: The Ultimate Guide to Apple’s Proprietary SSDs. Jump down to Generation 4 section.
by Dan
Thanks, so I checked things up due to your link and I found this:
My old original 128gb:
Says: SSUBX <- meaning this is gen 4
My newly bought original 256gb:
Says: SSUAX <- meaning this is gen 3.
Differences:
Gen 4: faster and uses PCI 2.0 x4
Gen 3: uses PCI 2.0 x2
Uses 4 gen:
MacBook Air (Early 2015 - Mid 2017)
MacBook Pro (Early 2015 - Mid 2015)
Uses 3 gen:
MacBook Air (Mid 2013 - Early 2014), Mac Pro (Late 2013)
The guy I bought this from said that the ssd was from a 2015 macbook air, which then has to be a lie.
What do you think? Is above correct and may using a 3 gen ssd causing my freezing problems?
by Gustav