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2.93 westmere

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    Need to replace backplane - question...

    I have: 2010 Mac Pro 12-Core 2x 2.93ghz Westmere I’m not sure what backplane I need - and I can’t figure out how to take the current one out in order to verify it (yet) What model number do I need? 661-5706? 820-2337-A? Again: 2010 Mac Pro 12 Core 2x 2.93 Westmere
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    2010 Mac Pro 5,1 - No EFI/ Boot, no chime, black screen

    2010 Mac Pro 5,1 2x 2.93ghz Westmere 20gb RAM OWC 256gb SSD ATI Radeon 5780 The last time this system booted (at all) was just before I took out the GPU to try in another Mac Pro. Once I reinstalled the GPU: - system starts up - front power button light illuminates - all fans run - gpu...