Hi Merv, What were your results please; is the problem fixed?
If you haven't recently cleaned the dust from all of the intake and exhaust vents, I would suggest you do. Turn the iMac OFF and disconnect power cable & anything attached to the iMac. Find the air vents, there is one along the top, one along the bottom, and in some models there is a circular one in back. Use a vacuum cleaner to get the worst off, then use compressed air to blow the rest out. Kind Regards, Ronni > On 17 Nov 2013, at 6:16 am, Ronda Brown <ro...@mac.com> wrote: > > Hi Merv, > > Try Reset SMU & Reset PRAM & NVRAM > > Reset SMU of your iMac > > Turn off your iMac > Unplug all cables from the computer, including the power cord. > Wait 10-50 seconds. > Plug in the power cord while simultaneously pressing and holding the power > button on the back of the computer. > Let go of the power button. > Then turn on your Mac again > > > Reset PRAM and NVRAM > Shut down your iMac > Locate the following keys on the keyboard: Command, Option, P, and R. > Turn on the computer. > Press and hold the Command-Option-P-R keys. You must press this key > combination before the gray screen appears and before the chime sound. > Hold the keys down until the computer restarts and you hear the startup sound > for three times. > Release the keys. > > If this does not fix, you might have problem with the capacitors on the logic > board. > > Cheers, > Ronni > Sent from Ronni's iPad4 > >> On 16 Nov 2013, at 9:49 pm, Merv Bond <m...@iinet.net.au> wrote: >> >> My wife is running an iMac OSX 1.8 GHz G5 power PC. >> She has used 69.42 GB out of 465 GB so has plenty of space. >> This morning while downloading a Fishpond email the machine froze. >> Attempts at restarting the machine failed: switching off at computer, >> switching off at power supply. Eventually tried a Safe Boot - success!! >> Ran Disk Utility - nothing serious that I could see, but I am not a code >> expert. >> >> Shut down and reopended. No success. >> Shut down and used Safe Mode startup. >> Noted that with Saft Mode Startup, just before the Home page appears the >> fans startup but stop as home page is arrived at. >> >> Advice on how to get full facilities back again appreciated. >> Merv
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