Mac Pro recurring Shutdown Cause: -128

Question

Banister Author

Level 1

7 points

Mac Pro recurring Shutdown Cause: -128

Mac Pro

Early 2009

Processor 2 x 2.66 GHz Quad-Core Intel Xeon

Memory 16 GB 1066 MHz DDR3 ECC

Graphics ATI Radeon HD 4870 512 MB

Serial Number xxxxxxxxxxx

Software Mac OS X Lion 10.7.4 (11E53)

ORIGINAL SYMPTOM:

Reboots at ~11:04:40 am every day with: localhost kernel[0]: Previous Shutdown Cause: -128

ACTIONS ALREADY ATTEMPTED:

Energy Saver system setting - Confirmed, No scheduled events.

Disabled CCC backup schedules.

recurring Reboots continued.

Hardware Test - passed (quick test)

Hardware Extensive Test - passed

DVD boot -> Disk Utility -> Repair Disk

recurring Reboots continued.

Reset PRAM

recurring Reboots continued.

Energy Saver system settings [Restore Defaults], revealed a possible existing underlying symptom due to previous settings never allowing sleep.

Wake reason: UHC1

Previous Sleep Cause: 0

The USB device HubDevice (Port 1 of Hub at 0x1d000000) may have caused a wake by issuing a remote wakeup (2)

The USB device HubDevice (Port 1 of Hub at 0x1d100000) may have caused a wake by issuing a remote wakeup (3)

The USB device Macally iMediakey (Port 2 of Hub at 0x1d110000) may have caused a wake by issuing a remote wakeup (3)

The USB device Macally iMediakey (Port 1 of Hub at 0x1d112000) may have caused a wake by issuing a remote wakeup (3)

Discovered GoogleSoftwareUpdateDaemon activity logged prior to every reboot...

UNinstalled Google Updater - http://wireload.net/products/guu-google-update-uninstaller/

recurring Reboots continued.

NEXT ACTIONS:

- unplug all but factory USB devices and watch. (will post results)

- Any suggetions???

- (last resort) Wipe and Re-install OS

Mac Pro (Early 2009), Mac OS X (10.7.4), 16 GB 1066 MHz DDR3

Posted on Jun 24, 2012 11:24 AM

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Answer 1

Jul 3, 2012 9:47 AM in response to Banister

I have this exact same problem, but with a late 2009 iMac.
My machine has been in to Apple to be fixed and they couldn't find a cause for the problem.
I am on hold to the support team as I type, having quoted the "Previous Shutdown Cause: -128" so we will see what they suggest!

I will post here if they eventually come back with a fix!

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Answer 2

Jul 3, 2012 10:42 AM in response to Banister

FYI, after trawling the forums while on hold with Apple, it emerged that, in my case at least, that the problem was most likely caused by 3rd party RAM I installed to upgrade to 16GB.

As you have a Mac Pro, I assume that you haven't upgraded, but if you have, take out 1 or 2 of the sticks of RAM and see if the problem continues.

If this does solve you issue, then you can install Samsung RAM upto 16GB and there shouldn't be any issues!

I have just taken out 1 of my 4GB sticks, so am now running on 12GB... waiting to see if this solved anything!

*Crosses fingers*

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Answer 3

Jul 3, 2012 8:00 PM in response to Banister

https://discussions.apple.com/thread/3968039?start=0&tstart=0

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Answer 4

Banister Author

Level 1

7 points

Jul 5, 2012 8:17 PM in response to Banister

Wow... I found the problem, totally unexpected.

It was a misbehaving UPS unit. Not anything with the computer at all !! 😮

It had never happened while I was around to see it before. With the computer plugged directly into the wall, no more recurring rebooting. 🙂

I think it's a worn out battery in my UPS. Now, if I could only get all those computer diognostic hours of my life back. 😝

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