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PowerMac G5는 Apple Corporation에서 2003년에 처음 제조한 데스크톱 컴퓨터입니다. 이 안내서는 2004년 Apple PowerMac G5 모델 번호 A1047 EMC 2061의 수리 과정을 검토합니다. 2006년에 먼저 개발자에게 그 후 소비자에게 Intel 스위치의 일환으로 판매가 중단되었습니다.

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Progressively reluctant to start up; now no chime, just fan.

Another carcass from a client. This 2GHz Dual Processor G5 got progressively worse about starting up; sometimes it would come on if the reset button on the logic board was pressed, but now it just whooshes up the fans and won't even chime; the fans stay on, but not loudly. We tried replacing ALL the RAM, using just pairs of RAM in different slots (in case one slot or pair of slots was bad), replacing the PRAM battery, disconnecting the HDs. The client finally gave up and bought a Mac Pro.

Does it sound like the power supply, or the logic board? Any other suggestions before I sell it for parts?

Added later: I did change the PRAM battery, reset NVRAM, zap PRAM, all that stuff. And let it sit with the power unconnected for a number of days.

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Since its a powermac my first thought would be the power supply. Do you have one you can substitute? Ralph

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No, I don't. I guess I could buy one to try, and sell it on eBay if it doesn't solve the problem.

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if you can manage to get it to boot again, try reseting the NVRAM, boot into open firmware, and type"reset-nvram" (to boot into open firmware, hold "command+option+o+f") also try reseting the PRAM, and checking the PRAM battery, since that little battery can cause so many problems.

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Been there, done that. I should have mentioned it. I'll edit the question to reflect that.

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I seem to be having the same problem as you had, Colleen. Did you have any success with the project or did you just scrap the unit for parts?

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The local Mac shop told me that with the G5s, they often suffer expensive logic board and/or power supply failures. I tried everything. It's going to recycling after having spent the last year under my dining room table :)

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