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Apple Computing Products:
macOS - Desktop Hardware
Why won't my Mac Pro boot?
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<blockquote data-quote="qw1ks1lv3r" data-source="post: 1406602" data-attributes="member: 253300"><p>Ok, when I said the card "started up just fine" I meant that the fan started up and the little red LED lit up and stayed lit up. Sorry for any confusion.</p><p></p><p>At the moment I've only tested two different cards, one of them is an ATI Radeon HD 4870. The other one is also an ATI but I'm not sure which model it is. I think it's the stock model that came with it, though.</p><p></p><p>Also I'm getting no output whatsoever. The screen remains blank regardless of any key combination I press upon startup. </p><p></p><p>To answer the dtravis7's question, there is no startup chime. I was worried about the lack of a startup chime, but I thought the lack of a display output was more pressing than the startup chime. I guess they're both quite significant after thinking about it some more.</p><p></p><p>There is a development, too: I tried plugging in a different IDE optical drive and found that one of the 4-pin Molex power cords was missing its connector adaptor. There were two on the same cord (I don't know how I missed it before) so I decided to go ahead and plug the drive in and start the machine up and see if it would work. As soon as I pressed the power button sparks were flying and I quickly unplugged the machine. The end of the damaged Molex connector was in contact with the metal chassis and making sparks. After a quick glance it seems as though got damaged (although it may or may nto be obvious of course), and nobody got hurt, but it was quite scary nonetheless. I don't think that the power cord missing a connector would have a whole lot to do with the machine not working unless it fried the CPU somehow. </p><p></p><p>I also have one question: would it matter that the HDDs are formatted or not?</p><p></p><p>Thanks for all your guy's help by the way! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="qw1ks1lv3r, post: 1406602, member: 253300"] Ok, when I said the card "started up just fine" I meant that the fan started up and the little red LED lit up and stayed lit up. Sorry for any confusion. At the moment I've only tested two different cards, one of them is an ATI Radeon HD 4870. The other one is also an ATI but I'm not sure which model it is. I think it's the stock model that came with it, though. Also I'm getting no output whatsoever. The screen remains blank regardless of any key combination I press upon startup. To answer the dtravis7's question, there is no startup chime. I was worried about the lack of a startup chime, but I thought the lack of a display output was more pressing than the startup chime. I guess they're both quite significant after thinking about it some more. There is a development, too: I tried plugging in a different IDE optical drive and found that one of the 4-pin Molex power cords was missing its connector adaptor. There were two on the same cord (I don't know how I missed it before) so I decided to go ahead and plug the drive in and start the machine up and see if it would work. As soon as I pressed the power button sparks were flying and I quickly unplugged the machine. The end of the damaged Molex connector was in contact with the metal chassis and making sparks. After a quick glance it seems as though got damaged (although it may or may nto be obvious of course), and nobody got hurt, but it was quite scary nonetheless. I don't think that the power cord missing a connector would have a whole lot to do with the machine not working unless it fried the CPU somehow. I also have one question: would it matter that the HDDs are formatted or not? Thanks for all your guy's help by the way! :) [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Why won't my Mac Pro boot?
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