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MAC Help MAC G5 major issues

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  • Adi Rishi
    Adi Rishi Oct 19, 2007

    Thanks for the reply...but figured it out myself...had some user account related issues.



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Red light logic board

Red light either means the side is removed from unit or there is a cooling issue if it is a G5 or newer. G4 or older that is normal.

Jul 22, 2013 | Apple Power Mac G5 Desktop

2 Answers

My G5 Mac with Tiger has been very slow, displaying the "beachball" frequently. I turned it off and when I turned it on again, I get a grey screen, a chime and a blue circular image in the...

Well, there are a lot of reasons that can consequently cause the issues on your Mac. Meanwhile, there are certain ways through which you can do to fix one by one. However, if you prefer a more efficient way to resolve, try an all-in-one Mac speed up software as it can help resolve all issues in just a few clicks.

Learn more from how to speed up mac

Jan 04, 2011 | Apple Power Mac G5 Desktop

1 Answer

My G5 Mac takes a long to start up and the the fans go wild. It's real slow. I ran a diagnostic check and everything passed. I have 80 GB left of hard drive space. Some programs are not working either.

This is a common issue for G5s. The quickest solution is to open up the computer to see how much dust there is built up inside of the case. If the case has a lot of dust by the fan vent, then it cannot properly get rid of the heat that builds up from processing. Try cleaning that out.

If the computer continues to run hot, there may be some much more major issues, including ram, processor, or hard drive. Ram and hard drive issues are relatively cheap to fix, you can purchase new ram dimms or hard drives on or Processors are much harder to replace and it's likely that it would be easier to purchase a new computer, rather than a new processor.

Start with the dust issue, then go from there.

Good luck!

Dec 04, 2010 | Apple PowerMac G5 Dual Mac Desktop

1 Answer

Apple Power Mac G5, 2 ghz Dual processor (not Intel) freezes and fans go on full if left idle for a period of time (roughly half hour or so). Run disc first aid, zapped PRAM. Not sure what else to do at...

It sounds as if it could be a thermal issue.
Open the side and clean out the dust from inside the Mac.(Use a clean 1" paint brush)
Take the main processor fans out and clean the heat sinks for the processors.
If you are still having the same issue, then your only option is professional help.

Nov 29, 2017 | Apple Power Mac G5 Desktop

2 Answers

Why does my desktop pro keeps shutting down unexpectedly

Just to clarify a G5 is not a Pro or "desktop Pro" (Mac Pro is an Intel based machine). Yours is a "Power Mac". Install a temp monitoring app to see the temperature (mainly the CPU temps). Mine runs around 50 to 60 Celsius and never more than 72. If the temps run to high she will shut down. G5 are great machines but it's not rare for them to go bad. Power supply issues and liquid coolant leaks are well know. Fans controllers have stopped working (the fans them selves are usually OK).

Apr 28, 2010 | Apple Power Mac G5 Desktop

1 Answer

Hello, I have an X800XT Mac Edition graphics card with a G5 2.0 dual processor and the problem I'm having is that when I boot up my G5, it goes through the spinning weel process, but when it's finished and...

I am going to recommend a hardware approach first and then a software approach, to this issue, in order to assist you. At the end of these procedures, is a general support link from Apple for additional support for no picture in your iMac G5 display

I am seeing more of such display issues like this, and more often than not, if the problem does not have to do with the firmware, it may be a damaged or corrupted file which can hinder the iMac G5 from normal start up functionality.
PMU Reset (try this first)

The PMU (Power Management Unit) is a micro controller chip on the logic board that controls all power functions for your Mac.

• Shut down the computer.
• Unplug the computer's power cord.
• Press and hold the power button for 20 seconds.
• Release the power button.
• Attach the computers power cable.
• Press the power button to turn on the computer.
* Boot to your desktop.

This procedure may help but if it does not, follow the procedure below

• Reboot your Mac
• Upon restarting your Mac, press the Shift key.
• Hold the Shift key until you see a White Screen with Gray Apple icon and eventually a spinning gear.
• When you see the Spinning gear, release the Shift key.
• Allow the Mac to continue booting up. Also this may take a little while

(NOTE: this may take anywhere from 5 to 15 minutes to load to the Safe mode screen depending on the performance of your Mac, but if it exceeds this time, shutdown your Mac and try just once more. It may have just frozen up the first time around for you.)

• You are going to enter the Safe Mode (which looks like your main desktop environment - the only difference is certain startup items are disabled.)

• Once within the Desktop in Safe Mode
• From the Finder Menu, click Go> Go to Folder
• Type in this line: /System/Library/StartupItems
• This path, is going to take you to the System Library folder which has all of your Mac OS X Startupitems.
• Remove all of those folders to the Trash.

*Reboot your Mac normally and see if you can access your normal User desktop environment.

One of these two procedures should help resolve the blank display issue you are experiencing,

Additional Support Link:
Apple Support iMac G5 - No picture on display



Dec 11, 2009 | ATI Radeon X800 XT Mac Edition AGP Video...

1 Answer

Having problems with Quark 6.5 since upgrading to 10.4.11. It crashes unexpectedly especially when using magnif. tool. Is there a conflict with Quark 6 5 and OS 10 4 11? If so how can it be repaired?

You most likely do need to upgrade Quark. There is a known problem with 6.5 and Tiger, since 10.4 was a major departure from Jaguar, which Quark 6.5 was designed for.

Before you do that though, you might want to explore font cache issues that can also cause this. Here's a free tool and writeup on the subject:

Mar 19, 2009 | Apple Power Mac G5 Desktop

1 Answer

Disk Drive spits out brand new DVD+R DL cds

The drive in the G5 may not support DL discs. Open the system profiler (From the apple menu, select 'About This Mac' then select 'More Info'). Click on 'Disc Burning' in the left hand column. You will now get the details about the disc drive including which discs are supported.

Jan 07, 2009 | Apple Power Mac G5 Desktop

1 Answer

External sound problems on Power Mac G5

Mac g5 sound output is echoing? what is the reason

Dec 02, 2008 | Apple Power Mac G5 Desktop

1 Answer

Firewire ports malfunction

Boot the machine from external hard drive with known good OS installed.
If issue persists then, then logic board has issue.

Dec 13, 2007 | Apple Power Mac G5 Desktop

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