Q: imac g5 will not boot past apple logo
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Jan 1, 2014 2:00 PMby K Shaffer,The last OS X version the hardware you mention could use (from retail install disc DVD) would be Leopard 10.5.x. You could use an 'identify by serial number' look up service* to see what exact version system the computer had when new, how far it could've been upgraded, and so on.
*One such site I use because it does desktop and portables, is:
http://www.powerbookmedic.com/identify-mac-serial.php
And if you had the correct original install-restore disc set (grey label) for that build series model year there would be a Hardware Test on the DVD that could be used to help troubleshoot the issues you now face.
Snow Leopard 10.6.x will not work on powerPC G4/G5 architectures, was intended for Intel-based mac of correct specification and at least minimum support by design.
There may be a hardware defect such as a capacitor or circuit failure in your G5 iMac. Did the issue appear when it was started up in SafeBoot? Sounds like the original owner should've included the original disc set.
Hopefully it can be repaired.
Good luck & happy computing!
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Jan 2, 2014 8:05 PMby edwin254,I finally got it to boot to safe mode after two days of working on it, i ran diskwarrior, everything is in order on that end, ran the aht and took pictures of the messages , not sure how to post them. The lines and pixels went away until i was in safe mode then they came back and eventually a freeze , now it will not start normally. Everything i have read to this point has steered me in the direction of a logic board replacement , the capacitors all look well , no swelling, or leaks, now I'm back to pixels, lines, flashing and problems not loading the OS
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Jan 3, 2014 10:59 AMby rccharles,-------------------------------
How to show us a screen image. Avoid personal identification.
command + shift + 3 Will take entire screen. You hear a click.
command + shift + 4 Lets you decide what to take. Mouse pointer changes. Move mouse to upper left corner of desire image. Hold down left mouse key where to start image. Drag mouse to lower left of where you want to stop image. Release mouse.
You will get a picture n.png file on the desktop.
On the forum input panel you will see the camera icon.
click on camera icon.
another window will appear.
Make sure you have selected the from your computer tab.
click on Browse button
An open file panel appears. Select the file.
After selection a file, I have this screen showing.
You will have to click on Insert Image. You may have to scroll down to see Insert Image button.
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Jan 4, 2014 6:39 AMby edwin254,<a href="http://s1285.photobucket.com/user/ementing1/media/Mobile%20Uploads/CAM00018_zps9 31b453a.jpg.html" target="_blank"><img src="http://i1285.photobucket.com/albums/a590/ementing1/Mobile%20Uploads/CAM00018_zps 931b453a.jpg" border="0" alt="screen shot 1 photo CAM00018_zps931b453a.jpg"/></a>
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Jan 4, 2014 6:40 AMby edwin254,<a href="http://s1285.photobucket.com/user/ementing1/media/Mobile%20Uploads/CAM00019_zpsf 869582e.jpg.html" target="_blank"><img src="http://i1285.photobucket.com/albums/a590/ementing1/Mobile%20Uploads/CAM00019_zps f869582e.jpg" border="0" alt="screen shot 2 photo CAM00019_zpsf869582e.jpg"/></a>
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Jan 5, 2014 10:08 AMby edwin254,But what about the graphics display? Do you see anything that points to a bad logic board , if so i need to definitely order a new one , i happen to like my G5 quite a bit and as a musician with the programs and things i have saved , i MUST save this beautiful machine.
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Jan 9, 2014 6:16 AMby edwin254,Then i really have no clue on what else to do , i ask about the logic board because of the lines and strange pixels , i can't seem to get it started in safe mode at all, it has once which is how i got those pictures and the lines and pixels even stayed in safe mode as well , maybe the lcd display is bad???, maybe its gpu???, i don't get it , and wish i did , this computer is very important to me.
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Jan 9, 2014 10:17 AMby rccharles,There is a video out put. I think mini-vga. You will have to look.
You can try attaching a monitor to the computer. This will sort out if it is a display problem or not.
Perhaps you should look around for another used machine. Try freecycle.org or craigslist.com.
Robert
