01-18-2010, 02:14 PM #1iMac G5 - blank Screen and High Speed Fan
I have ready similar posts, but nothing I have done will fix this problem. I have an original iMac G5 20" 512MB PowerPC OS X 10.4.11. It has been great for many years. Suddenly, for the past two months, if I leave it on and go away for 60 or more minutes I come back and the system is locked up (only holding down the power button for 5 seconds will shut it off) and the fan is running full speed.
I opened it up, went through the four light diagnostics, passed everything, but did the RESET anyway. BTW - the iMac is well ventilated and has no dust built up inside. It is still locking up after letting it sit unused for a long period of time. After more research I download the temperature monitor software. My CPU is running at 72 degree C. I don't know if that is too hot?
Any ideas for next steps? New power supply? Software patch? New power management card (is there one?)?
01-18-2010, 03:39 PM #2
- Member Since
- Nov 28, 2007
- Nambucca Heads Australia
- Imac 27" Retina 5K, 512GB Flash Storage, 3.3Ghz, 16GB memory, OS X.11.5.
Same answer Apple Hardware Test and please don't say you do not have the original install discs.
01-18-2010, 05:09 PM #3Not following?
HarryB - Thanks for your response. What do you mean "same answer"? I opened the imac and looked at the four LED's on the back as I powered up and did some testing and a reset. I never used any disks? Are there diagnostic disks I should be using? Could you point me to the KB article?
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By Head_Unit in forum Apple DesktopsReplies: 3Last Post: 05-28-2014, 04:34 PM
By dotdotdot in forum Apple DesktopsReplies: 6Last Post: 06-01-2013, 04:00 PM
By mafac in forum Switcher HangoutReplies: 9Last Post: 08-03-2012, 04:36 AM
By Mike1872 in forum Apple DesktopsReplies: 1Last Post: 01-18-2010, 02:39 PM