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Apple Computing Products:
macOS - Desktop Hardware
Imac 27" startup problem
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<blockquote data-quote="GreenTitanium" data-source="post: 1643256" data-attributes="member: 344976"><p>I've changed the RAM for first thing but nothing... the startup tones indicate the RAM in fact.</p><p>I would to check the voltages of power supply but I don't have a pinout.</p><p>At last trying with the reflow of CPU or GPU.</p><p></p><p>(I've sent the mac to the technical service but they told me I must change all the logic board) <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /></p></blockquote><p></p>
[QUOTE="GreenTitanium, post: 1643256, member: 344976"] I've changed the RAM for first thing but nothing... the startup tones indicate the RAM in fact. I would to check the voltages of power supply but I don't have a pinout. At last trying with the reflow of CPU or GPU. (I've sent the mac to the technical service but they told me I must change all the logic board) :( [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Imac 27" startup problem
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