dr0

A few weeks ago I bought a 1TB MX500 for my personal system [i7-3770/32GB RAM/H77/GTX1050Ti/Win 7 x64 SP1] to replace a combo of a smaller SSD and an HDD. My MX500 also has this weird behavior when occasionally the drive reports attribute #197 (Current Pending Sector Count) to go from 0 to 1, but in a few minutes, it changes back to 0. Reallocation Event Count (#196) never changes and always stays at 0. I have never seen anything like this with any SSD that I had a chance to use. My other SSDs have 10s of thousands of hours of active use and 10s of TB of lifetime writes but not a single one of them have pending sector(s) in the log files, including my trusty Crucial M4 that I've been using since 2011, whereas my MX500 has only 0.68TB lifetime writes and only 91 hours of active time but already had 3 events of pending sector. I wonder what causes this? And if it's indeed just a firmware bug then why Crucial hasn't fixed this to this day, after more than 18 month of MX500 being on the market? True that.