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somnambulism
Okay gentleman, we are at our wits end. The Apple care people seem to be clueless and although this may be more of a G5 issue than FCP it is making my edit life hell.
Main Problem: Computer will randomly go into sleep mode during video intensive renders (always Final Cut Pro related).
Symptoms:
When render begins, the time bar initiates but then the mouse cursor disappears, immediately the computer display snaps to black and G5 enters sleep mode. It must be stirred (key or mouse click) to awake. Upon awakening, rainbow wheel appears and shortly afterwards render resumes. Often this will happen more than once during the same render. Usually preceding or accompanying this symptom will be a strong revving of internal fans. Also it seems that renders under these conditions take twice as long as normal (aside from the sleep delays – duh!). Now this has begun to happen randomly even during playback. We -
5 Replies
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I think I would try to get Apple to replace the system board. It sounds to me like a main system board problem, not software. If you have already replaced everything else, that’s the last thing and if the computer is still under warrenty, Apple shouldn’t have any problems doing this.
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Wayne Carey
Schazam Productions -
Is the voltage coming into the computer up to specs?
Is there some kind of big something (machine, high power wires) in proximity (wall, ceiling, next door, floor) to the mac?
Exchange the power cable.
Is there something on top of the computer like a cell phone?
Unplug all drives including the ones inside other than the system drive, then, plug in a FW drive and try to do some simple DV stuff.
Move the drives around inside the computer, i.e. swap one drive from position a to position b and from position a to b, (a and b being your own definition).
Apple does have an odd suggestion on their web site (last year) unplug the power cable FROM THE CPU. Leave out for ten minutes then plug back in.
I could go on and on but you get the idea, try an analog solution now that you have tried the digital ones.
Chris
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bottom line here, and as I’ve heard from most techs… apple screwed the pooch with the 2.5(replace it)- it is consistently the worst performing computer out of my fleet. i don’t know exactly why
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Try disabling the power switch on the cinema display. It is done through the system preferences – you may have to hold down the option key while opening the display preferences to see this option (I can’t remember). Those electrostatic (or whatever they are) switches on the first 20″ LCD were known to spontaneously engage leading to sleep and shutdown issues.
Try resetting the nvram – hold down apple+option+O+F while booting – this brings you to the Open Firmware screen. Type “reset-nvram” hit enter then type “reset-all”. The machine will reboot.
Trash preferences relating to sleep/screen saver/energy saving. Then go set everything to off.
Good luck,
Mike Peele -
Hi.
I had simmilar symptoms for a while.
Didn’t do all the things you’ve done, though.
It boiled down to some bad RAM.
When the dirt hit the portion of the RAM that was no-good, weird things happened.but you have of course run Apple Hardware Test in extensive mode?
Gunleik
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