I recently got a new M.2 NVMe SSD and went looking for a heat sink for it because it gets a lot hotter than my old SATA M.2. After installing the heat sink I read on some forums (this one included) that, while the controller likes to be cool, the NAND chips shouldn't be cooled because they wear out faster when cool. This didn't make sense to me as you can get SSDs from the manufacturers with heat sinks on them, an external SSD enclosure I bought came with a thermal pad to dissipate heat to the case and the WD SSD Dashboard has a little temperature status indicator on the GUI that only shows green for good and yellow for too hot.
Doing some more googling I was only able to find an Ars Technica article from 2012 about how annealing NAND chips at 800 C (so a lot hotter than any PC) could pretty reliably release stuck electrons, making the cell usable again. My gut says this is the source of a misconception.
So, I'm still willing to believe that hot NAND makes SSDs last longer, but I'm going to need some better evidence. I mean a study testing that specific hypothesis or a news article reporting on a study or manufacturers recommendation from their website or something like that. Does anyone have better evidence one way or the other?
If it's true I will happily rip off my shiny new heat sink.
PS. First post ever so if I broke all the rules, uh, whoops.