Thanks Robin, SSD capacity it as 35%, so 65% of space still available.
Regards Tim > On 14 Jun 2026, at 9:18 am, Robin Belford via WAMUG > <[email protected]> wrote: > > Tim, > > You didn’t say what size or how full the SSD was. > > The second item is very important. If you get the free space in the > SSD to < 10 - 15 % of the SSD capacity you are going to experience > symptoms similar to what you have described. > > There are plenty of articles like this around to give you further > guidance if required. > > [1]https://ssdbuddy.com/how-much-free-space-should-you-leave-on-your-ss > d/ > > regards, > > Robin > > On 14 Jun 2026, at 7:40 am, Tim Law via WAMUG > <[email protected]> wrote: > > Good morning > I've had a frustrating few weeks with my 2017 iMac — 40Gb RAM maxing > out, needing to force-quit apps, and then occasional crashes every > few > weeks. With help from Claude (Anthropic's AI), it turned out the > culprit was a single missing setting. > When you install a third-party SSD in a Mac, which I did many years > ago, Apple doesn't automatically enable TRIM — the process that keeps > the drive running efficiently. Without it, the drive slowly gets > bogged > down, causes memory problems as macOS tries to compensate, and can > eventually trigger crashes. > The fix was one Terminal command: > sudo trimforce enable > If anyone in the group has upgraded their Mac's storage with a > non-Apple SSD and hasn't checked this, it's well worth a look. To > check > go to the > Apple menu, > System Settings, > About. > Then down the bottom is > System Report. > Check under Hardware: > SATA: > TRIM Support: was NO, and is now YES after I ran > sudo trimforce enable > Several warnings come up, which I clicked Y to > A restart and I will see how things go. > Regards > Tim > -- The WA Macintosh User Group Mailing List -- > Archives - <https://www.mail-archive.com/[email protected]/> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Settings & Unsubscribe - > <https://lists.wamug.org.au/mailman/listinfo/wamug> > > References > > 1. https://ssdbuddy.com/how-much-free-space-should-you-leave-on-your-ssd/ > -- The WA Macintosh User Group Mailing List -- > Archives - <https://www.mail-archive.com/[email protected]/> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Settings & Unsubscribe - <https://lists.wamug.org.au/mailman/listinfo/wamug> -- The WA Macintosh User Group Mailing List -- Archives - <https://www.mail-archive.com/[email protected]/> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Settings & Unsubscribe - <https://lists.wamug.org.au/mailman/listinfo/wamug>
