I haven't used memory86test yet but i did check a theory I have.. and uninstalled and re-installed Sims 4 and all the packs I have. I booted up the computer and using an EA sims only, I got from 20mins down to 07:13mins before it acted up.. So I guess its a RAM issue
@Madamelee This may be a RAM issue, but it could also still be an issue with the motherboard, or the processor, or perhaps something else that hasn't been showing up on the tests. I think at this point, it's probably best for you to take the computer to a shop to get it checked out. There's only so much we can do over the internet, both in terms of tests you can run and in terms of the tools available to measure. A computer shop could test each component individually fairly quickly and at the very least tell you which one isn't working properly.
