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my power supply is buzzing, imac mid2011 27" i5 2.7ghz. want to replace, part number should be 661-5972 but everywhere from all sellers is a picture of model 614-0446 even on ifixit(can clearly see P/N: 614… is this compatible part for all 27" iMacs? or those pictures are just for ilustration purposes?
patrik sestak, the part number 614-0446 cross reference to the following compatibility" iMac 27" 2.66GHz Core i5 (A1312) - Late 2009 iMac 27" 2.8GHz Core i5 (A1312) - Mid 2010 iMac 27" 2.8GHz Core i7 (A1312) - Late 2009 iMac 27" 2.93GHz Core i7 (A1312) - Mid 2010 iMac 27" 3.06GHz Core 2 Duo (A1312) - Late 2009 iMac 27" 3.2GHz Core i3 (A1312) - Mid 2010 iMac 27" 3.33GHz Core 2 Duo (A1312) - Late 2009 iMac 27" 3.6GHz Core i5 (A1312) - Mid 2010" from The 661-5972 is definitely the right number for all Mid 2011 27" iMac’s. It is available right here. Hope this helps, good luck.
