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Red G5

macrumors newbie
Original poster
Nov 9, 2004
20
0
Got a strange problem with my 2008 Mac Pro (2.8 Quad) - when the machine is asleep it will sometimes power off. Switching it back on shows that it wasn't a clean shutdown - checking iTunes library, rebuilding iPhoto database etc - just like if you yanked the power cord out.

It does this if I set it to sleep from the menu, as well as after the 15 minute energy saver timeout.

It's not power cuts or a dodgy PSU as (touch wood) it's fine when in use. I've tried an SMC reset, still the same issue.

I think it's connected to Mountain Lion as it's only recently started doing this.

Any ideas?
 
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