Wake up my Mac Pro 3.1 early 2008

The matter that when I wake up my Mac pro 3.1 (early 2008) from sleep the console keeps refering:
"10/1/15 11:55:53.000 AM kernel[0]: IOATAController device blocking bus."
hasn't be solved in Yosemite. Is it due to not APPLE  approved Samsung 850 EVO 250GB SSD, or My Mac incompatibility?
I face that matter also on every OS I used since I installed an intel SSD in the past, so I keep disabled  sleep time in preferences pane all these years!

Did you try the SSD in any other sata Bay?
About trim:
this what I said in another thread about it     (Re: Slow Intel 530 SSD in Mac Pro 1.1 (only write is slow) ):
Trim is a OS command that tells the SSD which files are deleted in the system. So that Garbage Collection can work more efficiently, but is is still the SSD controller that actually makes the deleted blocks free to write on. That said, for GarbageCollection to work well you need to have enough free space on the SSD, for example 5GB free on a SSD is too low and will cause slow write speeds.
In addition, when there is not much overprovisiong the lifetime of a SSD is shorter that with much overprovisioning: so if you think that the SSD slow write speed is due to this, reformat and let a serious space unformatted, like 10%.
As said in another thread about Trim, for Trim to work in Yosemite you need the disrobe a layer of security, personally I was a proponent of Trim in the "Grant Pannel period", a few yrs ago, in the time that teenager Oskar Groth started to copy the GP commandline in an app, in the beginning there were a lot of issues with that app but later on it was issue free. Allessandro Boschini had the same approach but used C to program his tool. Nowadays, with the SSDs having much better controllers, I propose that the install of Trim in Yosemite is not worth the loss of security. All in all, installing trim is a serious hack in a Core kext. There are (sporadic) reports that the trim hack in a Mac can lead to issues. Until now nobody has revealed what Apple uses as special in the Apple built in SSDs in which case there is a trim command in the OS.
Lex

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