Re: Sims3 crashes in CAS after OS update
The game can only access 2Gb RAM which is why it needs to be purged, it doesn't matter how much memory is installed in your Mac.
A lot of gamers have had issues with Sims 3 since updating to El Capitan, myself included. I had to clear out all my store content then reinstall it and it worked. Try that and see if it helps. If not then try a completely clean game by moving out the whole Sims 3 folder from Documents > Electronic Arts onto your desktop and try playing again.
If it still isn't working then reapply the 1.67 patch. The link is in my signature below.
