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Apple Computing Products:
macOS - Desktop Hardware
Why won't my Mac Pro boot?
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<blockquote data-quote="pigoo3" data-source="post: 1406672" data-attributes="member: 56379"><p>The video cards fan starting up & the red LED coming on really means nothing. Any one or more of the circuits on the video card could be bad...thus making it a "bad" card. The important part is what comes out of the video port.</p><p></p><p></p><p></p><p>It would be good to know what model this 2nd video card is...but I know many times it's difficult to know just looking at it. Being "Macintosh Friendly" is very important though. </p><p></p><p></p><p></p><p>The startup chime is VERY VERY important. No startup chime is your FIRST indication that something is wrong! The startup chime exists for a reason...it's not there just for fun.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p></p><p></p><p></p><p>I sure hope this didn't happen due to you "poking" around. I would hate to hear that additional issues are created due to the user.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p></p><p></p><p></p><p>This EVENTUALLY is most definitely important...but it wouldn't be causing no startup chime or display issues at this point.</p><p></p><p>- Nick</p></blockquote><p></p>
[QUOTE="pigoo3, post: 1406672, member: 56379"] The video cards fan starting up & the red LED coming on really means nothing. Any one or more of the circuits on the video card could be bad...thus making it a "bad" card. The important part is what comes out of the video port. It would be good to know what model this 2nd video card is...but I know many times it's difficult to know just looking at it. Being "Macintosh Friendly" is very important though. The startup chime is VERY VERY important. No startup chime is your FIRST indication that something is wrong! The startup chime exists for a reason...it's not there just for fun.;) I sure hope this didn't happen due to you "poking" around. I would hate to hear that additional issues are created due to the user.;) This EVENTUALLY is most definitely important...but it wouldn't be causing no startup chime or display issues at this point. - Nick [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Why won't my Mac Pro boot?
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