iMac Intel 27" EMC 2309 (Late 2009, Core 2 Duo 3.06 or 3.33 GHz) ID iMac10,1, EMC 2374 (Late 2009, Core i5 2.66 GHz or Core i7 2.8 GHz) ID iMac11,1

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ran hardware test and recieved error code

My imac was running a lil slow and would crash here and there and after updating to yosemite, when I would start my mac would get a black screen....i can get it up after unplugging and doing that a few times. error message received after running hardware scan is 4MOT 4 40000003:HDD-1321

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I ran hardware diagnostics again and gave me 4mot/4/40000003:hdd-1285 error code this time. Downloaded temperature gauge and HDD seems to be running fine now...


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Your HD fan is failing. It needs to be replaced.

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jude will be eternally grateful.
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