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Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

iMac 27 i5 Late 2009 Logic Board issues

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Member Since: Jul 10, 2012
Posts: 1
tomcom2k is on a distinguished road

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I replaced my mechanical HDD with a Solid State months ago, no issues.

I came to sell the iMac and stupidly forgot about the weak internal DP connector, ripped it off.

So i bought a replacement board: 661-5429 Logic Board - 27 inch 2.66 GHz i5 iMac Late 2009 A1312 | eBay

I installed the new board and tried to boot, apple logo appeared and hard power off and reboot.

I held Option, and tried to boot of MacOS Install DVD, apple logo appeared and hard power off and reboot.

So I thought, this is bad news.


I held Option, and booted of my Bootcamp partition, perfect, burn in tests etc run fine in windows.

Have I missed something or is it a dodgy logic board?
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