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Old Aug 29, 2012, 02:34 PM   #1
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Join Date: Aug 2012
Power Mac G5 powers on but no video

Earlier this week i purchased a dual 2.0 ghz power mac g5 for $50. I bought it with no harddrive, i installed a new harddrive and tried installing os x. But when i hit the power button, i get the tone, then a quick grey screen flash (about 5 sec) then monitor goes into power save mode.

I've tried switching the ram to different slots as well as replacing them. No go
I've pressed the PMU reset on mobo. No go
Thought it wasnt picking up my keyboard, so purchased a mac keyboard. No go
If i hold the mouse down the tray will eject.
The fans dont go crazy, it runs perfectly normal.

Any help is greatly appreciated!


Thats weird, i switched my dvi cable with a dvi to vga adapter and now i get a grey screen with a flashing question mark
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Old Aug 29, 2012, 02:58 PM   #2
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This should help for basic troubleshooting:

What graphics card does it have? You can post pic of the card or your G5 without side panel if you aren't sure.
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Old Aug 29, 2012, 03:11 PM   #3
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Flashing question mark means it can't find any bootable drives. Put your Mac OS X disc into it and it should boot from that and allow you to install Mac OS X onto the internal drive.
Last edited by Intell; Yesterday at 10:24 AM.
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