Late 2014 iMac Crashing

[DookSucks]

I have a late 2014 3.5 i5 27” iMac. We had to upgrade to 16gb from the standard 8gb. The machine runs 10.14.3

After three attempts, we finally received memory that worked.

Well, after 2 hours of usage, the computer crashed. There were no normal kernel panic type messages. The computer froze, went black and restarted.

The ram is from OWC. Can anyone help me? can anyone shine light on this for me?

I started out by placing the 8gb sticks in the empty slots. I have removed the two original 4gb sticks.

 

[komatsu]

>>I started out by placing the 8gb sticks in the empty slots. I have removed the two original 4gb sticks.

You're doing it wrong!

Put back the original RAM sticks. (Yes, I know they are less but you need to do this for troubleshooting)

Then see if it crashes again.

If it does NOT crash. Your problem is with the new RAM. Look carefully at the voltage (see label) between OLD and NEW ram.

 

[jerwin]

Apple Diagnostics

 

[nambuccaheadsau]

Go to Larry on OWC Live Chat line.

 

[DookSucks]

>>I started out by placing the 8gb sticks in the empty slots. I have removed the two original 4gb sticks.

You're doing it wrong!

Put back the original RAM sticks. (Yes, I know they are less but you need to do this for troubleshooting)

Then see if it crashes again.

If it does NOT crash. Your problem is with the new RAM. Look carefully at the voltage (see label) between OLD and NEW ram.

I did exactly that after that step. No issues with original ram.