My iMac 27" late 2012 model shows the error message 4mem/61/40000000: 0x8073af90. What does that mean?

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Etype69 Author

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My iMac 27" late 2012 model shows the error message 4mem/61/40000000: 0x8073af90. What does that mean?

Posted on Feb 28, 2015 6:42 AM

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Answer 1

rkaufmann87

Level 10

140,370 points

Feb 28, 2015 7:26 AM in response to Etype69

It means you have a RAM problem. If you upgraded the RAM yourself it's one of these three items:

Incorrect RAM (iMacs are extremely sensitive to RAM!!!!)

Failed RAM

Unseated RAM

If you upgraded yourself return the RAM, install the original Apple RAM and ONLY install either OWC (www.macsales.com) or Crucial RAM.

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Answer 2

Etype69 Author

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Feb 28, 2015 8:32 AM in response to rkaufmann87

Thank you for your reply. I did not upgrade or change the original ram. I take them out and test them separately.

My iMac also rattles and I believe it is the hard drive. Or do you think the rattle can come from the RAM … a loose socket or similar?

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Answer 3

Old Toad

Level 10

207,367 points

Feb 28, 2015 10:25 AM in response to Etype69

My iMac also rattles and I believe it is the hard drive.

Download and run Etrecheck. Copy and paste the results into your reply. Etrecheck a diagnostic tool that was developed by one of the most respected users here (and recommended by Apple Support personnel) in the ASC to help identify the more obvious culprits.

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