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Apple Computing Products:
macOS - Desktop Hardware
Why won't my Mac Pro boot?
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<blockquote data-quote="dtravis7" data-source="post: 1406604" data-attributes="member: 8287"><p>If you hear no chime it's not passing startup diagnostics. That is very important. Are you sure the RAM is correct for that machine? The Mac Pro uses special FB RAM Dimms. They should be in matched pairs. You might try taking some out and just leaving the first pair of Dimms installed. See if you get a startup sound.</p><p></p><p>The sparks came from the 4-Pin power connector that plugs into the Optical drive?</p></blockquote><p></p>
[QUOTE="dtravis7, post: 1406604, member: 8287"] If you hear no chime it's not passing startup diagnostics. That is very important. Are you sure the RAM is correct for that machine? The Mac Pro uses special FB RAM Dimms. They should be in matched pairs. You might try taking some out and just leaving the first pair of Dimms installed. See if you get a startup sound. The sparks came from the 4-Pin power connector that plugs into the Optical drive? [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Why won't my Mac Pro boot?
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