Question about Apple iMac G5 Desktop
My screen looks pixelated and no matter what I click on whether I am opening a new program or trying to view a graphic or accessing the internet, my screen is not clear, and is discolored?
This very likely a failure in the LCD screen. If you are seeing thin or wide bands, vertical or horizontal across the screen, then you will need to have the unit serviced to repair or replace the screen. If the unit has been dropped or struck (hard) it is possible the connector cable for the screen has come loose, but this is not usually the issue. If the unit is still under warranty, get it serviced. If it is not under warranty, there are several good web sites that provide Do-It-Your-Self instructional videos as well as parts, both new and refurbished and used. If you google your specific model and "screen replacement", you will see a number of results appear that would be of use.
Posted on Apr 26, 2013
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Posted on Jan 02, 2017
It may be possible that the power supply, display and or logicbpard may be having issues. Apple recommends resetting the pram and nvram. If issue persists reset SMU. YOur machine is 6 months outside of the original warranty, but if you purchased the 3 year extension plan, you may want to take action on it.
Keep me posted.
Posted on Nov 11, 2007
Since you are able to see your mouse pointer move, the display is refreshing so the problem is with something other than the graphics card. Generally software / OS related.
So assuming you aren't experiencing a hardware failure try the following...
Boot from the CD the computer shipped with.
Insert CD and restart the computer holding the "c" key
Your computer should boot from the CD
If so run disk utility from the CD and repair the disk as well as permissions. If there are any errors repair again.
If this is successful your computer "should" be repaired. If it is still freezing, use your CD to perform a Archive and install which should keep all your personal settings and installed software intact.
Posted on Mar 02, 2009
SOURCE: iMac G5
If it isn't the power supply, some of the early G5 imacs had a capacitor failure issue...mine just died, in fact. It was just shutting off by itself, even turned on once by itself....but tonight, when it shut down, it would not restart. I opened it up and looked and sure enough, 11 bulging/leaking capacitors. My local service center says there are two options: 1. new mother board-aprox $500 or replacing the capacitors- between $170-200. Until Dec 15, 2008..this was apparently covered under a special warranty extension program Apple had....typical!
Posted on Mar 07, 2009
SOURCE: My Apple IMac G5, 2GHz 512 MD DDR SDRAM (Sr.No. W85399C8SDY)developed a couple of white lines on the screen a few months ago. These have now spread to cover almost the entire LCD display. What is the
Hi, it seems like a motherboard problem (hardware), you will probably need to bring the mac to an AASP. Before, you can try the Apple Hardware Test, or resetting the PRAM (Hold the cmd, alt, p and r keys)
Posted on May 29, 2009
Assuming you have the model with four diagnostic LEDs, the lack of LED-3 indicates that the computer and the LCD display are NOT communicating. This
LED should be ON when the computer is turned on and video signal is being generated.
The first solution is to reset the PRAM (hold command-option-P-R after the boot chime until you hear another boot chime). If video does not appear, then power down the computer and reset the SMU by pressing the SMU button ONCE ONLY. (The SMU button is located just south of the fan housing and is the button further away from the fan; the other button is a power button.) If this does not fix the video, the next step is to remove the optical drive. If this does not fix the video, put everything back together and attach an external display using the dongle supplied with the unit. If the external display fails to work, you have a logic board problem; otherwise, you have an LCD panel, inverter, or cable problem.
Posted on Apr 02, 2010
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