I have MBP late 2011 that was 4GB RAM. So I upgraded it to 16GB. It boots fine and I can use with Firefox and some other apps, but when I try to use it with some apps (Android Studio and XCode) those apps sometimes works and sometimes crashes.

The OS itself runs fine, except of instability on some apps after upgrade

I'm not sure why but I read this and it says maximum memory is 8GB. Anyone who can help shed light on this? I don't know what to ask better than this as I'm still confused with what is happening.


After running Apple Hardware Test I got an error. I believe something is wrong with one (or all) of memory modules. Here's a screenshot

enter image description here

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    Start with running AHT - Apple Hardware Test. Hold D while booting from a powered off state with the AC adapter attached. Also, please define your crash - is it a "spinning beach ball", a shutdown, a kernel panic or something different? It helps to know what's happening so we can assist in diagnosis. – Allan Dec 8 '18 at 13:46
  • Thank you. Let me test. By crashing I mean app get abruptly closed and then the famous message "Android studio crashed..." dialog – Stefano Mtangoo Dec 8 '18 at 13:48
  • @Allan, I have updated my question – Stefano Mtangoo Dec 8 '18 at 13:50
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    Oh...and your Mac supports 16GB of RAM as per EveryMac.com (It's a very reliable source). Also, start looking in your syslog for crash reports (/var/log/system.log). – Allan Dec 8 '18 at 13:53
  • Let me check that too. – Stefano Mtangoo Dec 8 '18 at 15:56

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