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Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

iMac - fan huumming as loud as jet


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pujan14

 
Member Since: Aug 12, 2008
Posts: 11
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My hardware conf is

Machine Name: iMac G5
Machine Model: PowerMac8,2
CPU Type: PowerPC G5 (3.0)
Number Of CPUs: 1
CPU Speed: 1.8 GHz
L2 Cache (per CPU): 512 KB
Memory: 512 MB
Bus Speed: 600 MHz
Boot ROM Version: 5.2.5f1

now as soon as i start mac in just few seconds it starts fan on top speed which makes humming sound quite loud what should i do to stop this
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harryb2448

 
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Location: Nambucca Heads Australia
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Mac Specs: iMac i5 2.7GHz OS X.9.4 and OS X.10

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See if resetting the SMU is any help in controlling the fans:-

http://support.apple.com/kb/HT1767?viewlocale=en_US
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kermada

 
Member Since: Aug 16, 2008
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Check if there is a large amount of dust at the bottom.
I think that is what killed my mother board.
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