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Apple Computing Products:
macOS - Desktop Hardware
2017 iMac Pro not Starting up after Thunderstorm
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<blockquote data-quote="pigoo3" data-source="post: 1901337" data-attributes="member: 56379"><p>Sorry to hear that. Not a 100% guarantee...but very likely the iMac Pro sustained some damage during the thunderstorm. As far as troubleshooting...many times this comes down to replacing suspected bad parts for good parts. </p><p></p><p>I don't know the exact innards as well as I know other Apple computers...but two parts come to the top of the list to check/replace...and they are the power supply & logic board. </p><p></p><p>Given that iMac Pro's are very very expensive...replacement parts are very likely to be very expensive. Even used parts via eBay (if available)...could be expensive. Power supply would be less expensive than the logic board. </p><p></p><p>Here's an 2017 iMac Pro power supply for $179 (a lot less than I expected)...for $179:</p><p></p><p>[URL unfurl="true"]https://www.ebay.com/itm/173416789693?epid=12021528505&hash=item28607236bd:g:zXUAAOSwcBpd-B3v[/URL]</p><p></p><p>This is a 370 watt model...there are 500 watt power iMac Pro power supplies as well which are a good bit more expensive (check what you have before purchasing). If you were to pursue this...might be a good idea to see if it's returnable if it does not fix the problem.</p><p></p><p>Be aware...these iMac Pro's (when new)...sold for $5000-$7500...and currently worth (eBay) $2000-$3500+. Thus a couple hundred dollar power supply investment could be really worth it (if a replacement PSU fixes it).</p><p></p><p>On the other hand a used replacement logic board will be pricey. Only found one on eBay (it's the logic board for the lowest end iMac Pro)...and it's going for $1699!</p><p></p><p>Keep in mind. The power supply could be the issue...or the logic board could be the issue...or possibly both. Could be something else too...but power supply is where I would probably start.</p><p></p><p>Good luck,</p><p></p><p>Nick</p></blockquote><p></p>
[QUOTE="pigoo3, post: 1901337, member: 56379"] Sorry to hear that. Not a 100% guarantee...but very likely the iMac Pro sustained some damage during the thunderstorm. As far as troubleshooting...many times this comes down to replacing suspected bad parts for good parts. I don't know the exact innards as well as I know other Apple computers...but two parts come to the top of the list to check/replace...and they are the power supply & logic board. Given that iMac Pro's are very very expensive...replacement parts are very likely to be very expensive. Even used parts via eBay (if available)...could be expensive. Power supply would be less expensive than the logic board. Here's an 2017 iMac Pro power supply for $179 (a lot less than I expected)...for $179: [URL unfurl="true"]https://www.ebay.com/itm/173416789693?epid=12021528505&hash=item28607236bd:g:zXUAAOSwcBpd-B3v[/URL] This is a 370 watt model...there are 500 watt power iMac Pro power supplies as well which are a good bit more expensive (check what you have before purchasing). If you were to pursue this...might be a good idea to see if it's returnable if it does not fix the problem. Be aware...these iMac Pro's (when new)...sold for $5000-$7500...and currently worth (eBay) $2000-$3500+. Thus a couple hundred dollar power supply investment could be really worth it (if a replacement PSU fixes it). On the other hand a used replacement logic board will be pricey. Only found one on eBay (it's the logic board for the lowest end iMac Pro)...and it's going for $1699! Keep in mind. The power supply could be the issue...or the logic board could be the issue...or possibly both. Could be something else too...but power supply is where I would probably start. Good luck, Nick [/QUOTE]
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Apple Computing Products:
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2017 iMac Pro not Starting up after Thunderstorm
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