Quote Originally Posted by minpayne View Post
@Christopher

The Samsung 830 is quite interesting... I've been holding off from the 830 512GB since I've seen your posts regarding the drop of performance (which is yet recovered) and the write-amplification calculated by Ao1. What worries me most is the sudden and severe change of the MWI-like SMART attribute since the power cycle. Back to Intel 320 Series for now and I don't plan to touch new controllers for a laptop used for production.

Just curious, have you verified that the motherboard, the SATA controller and the cables are still working correctly, i.e. you could reproduce SATA-III speed with a "good" SSD?
Look, it's pretty much impossible to get this to happen naturally. I made some changes to the amount of free space after the second day, as the drive had become quite slow. I bumped it back up where it was, and it was fine for another 8 days or so... until I reduced the amount of free space left again. I let it run longer to see how bad performance would get, and this time secure erasing it wouldn't even fix it, much less the more extreme methods I tried.

I can put the drive into another system, and it does the same thing in every system I've tried, and with different drivers as well.

If this was a widespread problem, Dell, Lenovo, and Samsung would have stumbled upon it already.