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Apple Computing Products:
macOS - Desktop Hardware
24" 2008 iMac full fan issue...
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<blockquote data-quote="danwilderspin" data-source="post: 1630543" data-attributes="member: 339197"><p>Hi Everyone,</p><p> </p><p>I currently have a problem with my 24" iMac 8,1 . When I turn it on I get fan blowing full speed. </p><p>I then installed fan control and a sensors app and noticed that none of them even suggested I had a cpu temp and gpu heat sink sensor. They weren't there let alone registering. </p><p>I opened her up checking connections all were good.</p><p> I then rebooted and used Apple hardware test and got the 4sns TmOP error.</p><p> I am struggling to find anywhere what this means and how to fix it.</p><p> It also just randomly switches off even when fans are at high speed....</p><p>***</p><p>An updare on this - wasted more money and still stuck... so i put in a new logic board...and guess what.. same problem? when i run about 5 different temp gauge programs none show the od temp, cput temp or the hdd temp - despite all being plugged in? so i could have another logic board ssame problem (unlikely?) or its something else... helP</p></blockquote><p></p>
[QUOTE="danwilderspin, post: 1630543, member: 339197"] Hi Everyone, I currently have a problem with my 24" iMac 8,1 . When I turn it on I get fan blowing full speed. I then installed fan control and a sensors app and noticed that none of them even suggested I had a cpu temp and gpu heat sink sensor. They weren't there let alone registering. I opened her up checking connections all were good. I then rebooted and used Apple hardware test and got the 4sns TmOP error. I am struggling to find anywhere what this means and how to fix it. It also just randomly switches off even when fans are at high speed.... *** An updare on this - wasted more money and still stuck... so i put in a new logic board...and guess what.. same problem? when i run about 5 different temp gauge programs none show the od temp, cput temp or the hdd temp - despite all being plugged in? so i could have another logic board ssame problem (unlikely?) or its something else... helP [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
24" 2008 iMac full fan issue...
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