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Apple Computing Products:
macOS - Operating System
steady beeping on iMac
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<blockquote data-quote="harryb2448" data-source="post: 1777084" data-attributes="member: 42497"><p>D key works only with late 2013 models and later, and this is an early 2009 iMac. If you have the model correct, model number 9.1 for both the 20" and 24", go to the link and download the appropriate version of AHT, burn to a thumb drive and boot from that.</p><p></p><p></p><p><a href="https://github.com/upekkha/AppleHardwareTest" target="_blank">https://github.com/upekkha/AppleHardwareTest</a></p></blockquote><p></p>
[QUOTE="harryb2448, post: 1777084, member: 42497"] D key works only with late 2013 models and later, and this is an early 2009 iMac. If you have the model correct, model number 9.1 for both the 20" and 24", go to the link and download the appropriate version of AHT, burn to a thumb drive and boot from that. [url]https://github.com/upekkha/AppleHardwareTest[/url] [/QUOTE]
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Apple Computing Products:
macOS - Operating System
steady beeping on iMac
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