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I’ve had a problem with my audio jack. It felt inside iMac. I’ve opened my iMac, did an disassemble according to iFixit instructions until I’ve got motherboard out. Then I fixed audio jack and assembled everything back. Everything was good, OS X started properly and I was working all evening. Next day when i tried to reboot iMac into windows @ bootcamp I’ve got this 3 beeps per 5 sec problem. I know about RAM issues and iMac beep signals meaning. So I’ve tried to get RAM sticks one by one out. It changed to 1 beep per 5 sec. I’ve tried different combinations already in different slots. With some memory sticks I have 3 beeps and 1 beep with others. Anyway iMac won’t to start up and I see black screen only. Any suggestions? Thanks.

I’ve bought iMac to the service and there was some problem with power as they said. Can’t provide more details except that they fixed it.

How did you fixmthe problem?