Mac Pro (Late 2013) random improper shotdowns

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Mac Pro (Late 2013) random improper shotdowns

My Mac Pro (Late 2013) running OS 10.10.3 has been experiencing intermittent shut downs and memory showing as less than installed. At times it shows me the full 64 GB installed, at time less, 2 slots empty, sometimes one.

Model Name: Mac Pro

Processor Name: 12-Core Intel Xeon E5

Processor Speed: 2.7 GHz

Memory: 64 GB

My Bluetooth has been also problematic lately. Continued disconnection of both my wireless mouse and keyboard.

I have gone through diagnostics and found no issues. I did also reset System Management Controller.

Please help!

A million thanks in advance!

Adolph

Posted on Apr 27, 2015 3:39 AM

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Answer 1

lllaass

Level 10

210,411 points

Apr 27, 2015 3:51 AM in response to modsupremo

Try reseating the memory sticks

Mac Pro (Late 2013): Installing or replacing memory - Apple Support

Go to Apple icon in upper left>About This Mac>System Report>hardware>Memory. Do all the stick say OK?

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Answer 2

modsupremo Author

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Apr 27, 2015 3:57 AM in response to lllaass

Hello lllaass!

I did reseated the memory stick numerous times and the funny thing is after doing so, it shows me the whole 64 GB, 4 slots. The nest day (like today) when I start the machine up, i show me 48 GB. A weird thing! Is anyone experiencing these problem or am I the only one?

Thanks!

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Answer 3

lllaass

Level 10

210,411 points

Apr 27, 2015 4:05 AM in response to modsupremo

I might have seen that one before here.

Is it always the same location that is not showing?

If so try interchanging that stick with another one.

If it follows the stick that indicates a problem with that stick.

If it remains with the slot that means a hardware problem with the Mac. I would look at the slot with good lighting and magnifying device to look for abnormalities,

If a hardware problem with the Mac then make an appointment at the Genius Bar of an Apple store.

Apple Retail Store - Genius Bar

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Answer 4

modsupremo Author

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Apr 27, 2015 4:33 AM in response to lllaass

Early on it says DIMM 4 is empty, now after restarting is shows that DIMM 2 is empty...

Still showing 48 GB instead of 64 Illass.

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