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Dual 1.8 gHz mac running Tiger 10.4

I accidentally popped the wrong fuse in my house when attempting to turn power off in one part of the house while Tech Tools Pro was running an optimization.  I turned off the power to my computer instead.  Ever since the computer doesn't get past the gray screen with the progress indicator.  I will, however, boot up from the Tech Tools disk, but can't do anything with it.  All the tests run by Tech Tools "passed"  hardware, software, volumes, etcc...
Please, can you help?

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Re: Dual 1.8 gHz mac running Tiger 10.4

Hi. You could try a PMU/SMU reset

Good Luck.

Posted on Jan 18, 2008

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Upgrade for a 2005 apple mac desktop tiger 10.4

The highest you can get up to is leopard 10.5. Unfortunately, after 10.5 Apple moved to Intel getting rid of the powermac processors.

Depending on your specs I would recommend sticking with tiger, but leopard should run fin on your powermac. It runs great on mine.

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Checking the power supply isn't the easiest thing to do, it involves pulling apart the entire machine.
You can try resetting the SMC, unplugging all power, hold the power button for 5 seconds, replace power, then attempt to turn on.
if it still won't turn on, and assuming you didn't get AppleCare or it is expired (past 3 years) it might be worth taking in to an Authorized Apple Repair Facility and see if they will check it out for free. If it is under warranty, most definitely take it in or call 1-800-APL-CARE
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a tear down from iFixit for the 20" model, it is most likely very similar for your model as well
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Jan 06, 2010 | Apple Power Mac G5 Desktop

1 Answer

Lost power to the house with computer on. Once power was restored to house computer would not power up. Tried a different plug and hit reset computer came on. Reset clock and date and powered down...

I suspect that all you have to do is reset the Power Manager (CUDA) to straighten your machine out.
There are several models of Power Mac G4, and the procedure is different for each. Comprehensive instructions are here:

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How to stream youtube on a power macintosh g3

wow, that's tough,providing you have maxed the RAM in the machine, and have it running upvtovdate Panther or Tiger ...while using firefox , have flip4mac installed .... give that a go, should work depending on what video. HD will be a nono but most vids should play depending also on how the video maker finalised there vids too..what codec they used etc etc I had it running on a iMac G3 not too long ago with 1Gb RAM on Tiger . worked -ok(ish) good luck oh.. to help more I'd need to know what OS- how much RAM -which browser/plugins you using ? cheers.

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