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Apple Computing Products:
macOS - Desktop Hardware
G5 fan problem after cooler disassembly.
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<blockquote data-quote="chscag" data-source="post: 1016701" data-attributes="member: 46727"><p>I don't know if the G5 has thermal sensors similar to the iMac or even MB and MBP series, but if it has, that's where I would look. There have been cases of fans running wild or at very high RPM which were the result of a defective or accidentally disconnected thermal sensor.</p><p></p><p>As a start, go back over the work you did to repair the coolant system and see if all the thermal sensors are connected properly. You should be able to get an idea of where they're located by consulting the take apart instructions for your model G5 at:</p><p></p><p><a href="http://www.ifixit.com" target="_blank">iFixit: Apple Mac, MacBook, iPod, and iPhone Repair Parts</a></p><p></p><p>Also, I'm assuming you applied thermal paste (heat sink compound) when you assembled the cooling system back to the CPU.</p><p></p><p>Regards.</p></blockquote><p></p>
[QUOTE="chscag, post: 1016701, member: 46727"] I don't know if the G5 has thermal sensors similar to the iMac or even MB and MBP series, but if it has, that's where I would look. There have been cases of fans running wild or at very high RPM which were the result of a defective or accidentally disconnected thermal sensor. As a start, go back over the work you did to repair the coolant system and see if all the thermal sensors are connected properly. You should be able to get an idea of where they're located by consulting the take apart instructions for your model G5 at: [url=http://www.ifixit.com]iFixit: Apple Mac, MacBook, iPod, and iPhone Repair Parts[/url] Also, I'm assuming you applied thermal paste (heat sink compound) when you assembled the cooling system back to the CPU. Regards. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
G5 fan problem after cooler disassembly.
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