Mac Pro 2009 won't start up - solved

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Mac Pro (初代モデル)

初代Mac ProはIntel Xeonをベースにしたワークステーションコンピューターです。初代モデルには2006年から2008年のデバイスも含まれます。

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Hong Wei Li @c1830

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投稿日: 2016年4月24日

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Mac Pro 2009 won't start up - solved

Hey, everyone.

I got a problem that my mac pro 2009 doesn't start up.

Yesterday, I use it but it shutdown suddenly.

Then I press the start button again and it boot about 15 sec then shutdown.

After this, I can't start up anymore when I press the start button.

I try to check anything following this http://tim.id.au/laptops/apple/macpro/ma...

When I plug the power cord, the OVTMP CPUA and OVTMP CPUB LEDs flash red.

Press the DIAG button, the 5V STBY LED illuminates

Disconnect the front panel board and momentarily jump the SYS_PWR, no any response.

Reduce computer to minimal configuration, 5V STBY LED illuminates.

But I still don't know which part broken.

Can anyone help me or tell me which part I can check?

Whether the OVTMP CPU A, B LEDs, and 5V STBY LED illuminating means the power supply and backplane board is ok?

Thanks a lot.

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Did you solve this problem? I'm having the exact same problem!

Lucas Saldanha さんによる2016年10月11日

yes!! I solved my problem. Finally, I can sure that my backplane board is out of work , so I replaced it ,and my mac work again.

Hong Wei Li さんによる2016年10月11日

Thanks! I'll try to do the same!

Lucas Saldanha さんによる2016年10月13日

Hi, I am facing the same problem now. May I know what is backplane board? Is it the logic board?

burtt.mackintosh さんによる2017年5月13日

Yes, it's the logic board.

Hong Wei Li さんによる2017年5月22日

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Did you solve this problem? I'm having the exact same problem! — Lucas Saldanha
yes!! I solved my problem. Finally, I can sure that my backplane board is out of work , so I replaced it ,and my mac work again. — Hong Wei Li
Hi, I am facing the same problem now. May I know what is backplane board? Is it the logic board? — burtt.mackintosh

Toti Fanara @toti 評価: 13 1 · Answer 1 · 2016-06-23T15:32:45-07:00

Toti Fanara @toti

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投稿日: 2016年6月23日

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Since it looks to be mainly an electrical issue I'd suggest to see if you can manage to find a "tested-good" PSU to use with your mac pro. I recently had a similar issue and it helped I had access to 2 identical mac pros (both 2,1) to try and isolate the problem (sudden shut down after few min of use). Sadly in my case the culprit seems to be something on the motherboard, in which case isn't worth to try and figure out what as that would require time, knowledge and equipment (electronic diagnostic lab) that I do no posses or have access to.

Hope the above might help you point you in the right direction and best of luck with finding and solving the issue with your mac pro! :)

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Mac Pro (初代モデル)

Mac Pro 2009 won't start up - solved

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