I have the a 2020 iMac, 3.6GHz 10 core with AMD Radeon Pro 5700 XT 15GB graphics card.
I purchased 4 x 32 gb 3rd party RAM to put in it - OWC brand - but when I have all 4 sticks in, my iMac constantly crashes.
Happens doing all sorts of things - even minor things some times - but did some tests below.
iMac runs fine with no crashes with various combinations of 3rd party RAM using 2 sticks at a time, so I don't think it is a faulty RAM stick.
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Test run: create 3000 1 to 1 image preview in Lightroom
No other apps running (also crashed when doing other things, but wanted consistent test for all set-ups).
iMac with 4 x 32gb OWC RAM = crash - ram runs at 2667MHz - tested 3 times, all result in crash.
Crash = entire computer locks up, no mouse movement, computer restarts itself and give crash warning - see screenshots below
iMac with 2 x 32gb OWC RAM = NO crash - ram runs at 2667MHz
iMac with other 2 x 32gb OWC RAM = NO crash - ram runs at 2667MHz
iMac with various different combinations or 2 x 32gb OWC RAM = NO crash - ram runs at 2667MHz
iMac with 2 x 32gb OWC RAM (any combination) and original 2 x 4gb sticks from apple - 4 sticks in at once = NO crash - ram runs at 2133MHz
All RAM test pass when 4 sticks of 32gb of OWC RAM in machine - used Remember app, latest Techtool Pro and Apple Hardware test
Have taken machine to Apple Genius - they found nothing wrong - no real hardware tests run though.
- - - - - - - - - -
Is anyone else having the same issues with 4 x 32BG ram in the new 2020 iMac?
Crash reports attached.
I purchased 4 x 32 gb 3rd party RAM to put in it - OWC brand - but when I have all 4 sticks in, my iMac constantly crashes.
Happens doing all sorts of things - even minor things some times - but did some tests below.
iMac runs fine with no crashes with various combinations of 3rd party RAM using 2 sticks at a time, so I don't think it is a faulty RAM stick.
- - - - - - - - - -
Test run: create 3000 1 to 1 image preview in Lightroom
No other apps running (also crashed when doing other things, but wanted consistent test for all set-ups).
iMac with 4 x 32gb OWC RAM = crash - ram runs at 2667MHz - tested 3 times, all result in crash.
Crash = entire computer locks up, no mouse movement, computer restarts itself and give crash warning - see screenshots below
iMac with 2 x 32gb OWC RAM = NO crash - ram runs at 2667MHz
iMac with other 2 x 32gb OWC RAM = NO crash - ram runs at 2667MHz
iMac with various different combinations or 2 x 32gb OWC RAM = NO crash - ram runs at 2667MHz
iMac with 2 x 32gb OWC RAM (any combination) and original 2 x 4gb sticks from apple - 4 sticks in at once = NO crash - ram runs at 2133MHz
All RAM test pass when 4 sticks of 32gb of OWC RAM in machine - used Remember app, latest Techtool Pro and Apple Hardware test
Have taken machine to Apple Genius - they found nothing wrong - no real hardware tests run though.
- - - - - - - - - -
Is anyone else having the same issues with 4 x 32BG ram in the new 2020 iMac?
Crash reports attached.
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