Wasn't sure where to post this but Samsung is working on a new firmware update for a serious design flaw in their 840 evo's. Mine is affected... they claim only a small amount of people have the drive that has these issues...

Anyway old data (older than 1 month) will be read at crazy slow rates (typical read is 450 mb/s, old data is only read at around 40-80 mb/s)

http://www.pcper.com/reviews/Editori...comment-257067