View Full Version : iMac g5 heat/fan issues...

Crashing Bore
Jul 8, 2007, 03:42 PM

What is wrong with this picture? The fans are running out of control constantly. This machine is sooo loud. The power supply was just replaced, which did little/nothing. Reset all ram/etc. :confused:

Crashing Bore
Jul 9, 2007, 05:43 PM
Is this normal? Anyone? Anyone...?

Jul 11, 2007, 08:44 AM
My G5 iMac also has intermittent fan speeds that seem very high. At time the CPU fan will run 4000 rpm and CPU temp over 155 F.
After I quit a site that ramps up fan speed like U-tube the fans continue to run fast.

If my G5 then sleeps and wakes up, fan speed returns to high levels. If I restart, fans are likely to return to quiet levels aprox 1500 rpm.

Should I be concerned?

Jan 12, 2008, 03:53 PM
I have a new prblem my Imac is only a few weeks old . Turned it on today after being completely off over night with power supply off also and the moment I touch the on button the fan kicks in full blast and never NEVER goes off.

Will get my apple care on it on Monday but is this a common problem?