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Apple Computing Products:
macOS - Desktop Hardware
Fan won't stop! - Pre-Intel Quad G5
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<blockquote data-quote="chscag" data-source="post: 1027405" data-attributes="member: 46727"><p>Here's a <a href="http://www.baconeggs.co.uk/images/dmm/powermac_g5.pdf" target="_blank">LINK</a> to the service manual for your G5. Take a look at the section under trouble shooting which refers to "thermal calibration".</p><p></p><p>Other users have reported the same problem as you describe and one of the solutions is to do a thermal calibration. My guess is that as the unit ages, it loses its thermal calibration and that in turn is what controls the fans. Since there doesn't seem to be anything else wrong with your G5, I suggest you give that a try. Let us know.</p><p></p><p>Regards.</p></blockquote><p></p>
[QUOTE="chscag, post: 1027405, member: 46727"] Here's a [URL="http://www.baconeggs.co.uk/images/dmm/powermac_g5.pdf"]LINK[/URL] to the service manual for your G5. Take a look at the section under trouble shooting which refers to "thermal calibration". Other users have reported the same problem as you describe and one of the solutions is to do a thermal calibration. My guess is that as the unit ages, it loses its thermal calibration and that in turn is what controls the fans. Since there doesn't seem to be anything else wrong with your G5, I suggest you give that a try. Let us know. Regards. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Fan won't stop! - Pre-Intel Quad G5
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