Imac mid 2010 shuts down after latest software UD

  jp7147 14:18 21 Mar 2018
Locked

Hi all- Can anyone help me identify why Im having issues after installing High Sierra on my iMac mid 2010? I had no problems installing software and ran first aid on boot and found no issues but yet It still shuts down while in use. It also beeps 3 times if I leave it on followed by a reboot that bypasses login. I'm a photographer and this is happens while using Lightroom also. I have 8GB Ram... Can that be the Issue? I tried cleaning the ram and nothing. I can't seem to find answers anywhere... this is driving me crazy!

  HondaMan 16:31 21 Mar 2018

Have a look here

  bremner 19:24 21 Mar 2018

This certainly sounds like a Ram issue - when did you upgrade to 8GB.

Can you remove the new Ram and reinstall the old and see what happens.

  jp7147 00:19 22 Mar 2018

I’ve looked at the Apple support site and all checks out ok there. And I didn’t replace the ram. I just took it out to clean it and put it back as some forums mentioned that, that could be the problem.
Thanks guys for trying. But still looking for answers.

  HondaMan 09:26 22 Mar 2018

As a matter of interest, how did you "clean" the RAM

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