The PowerMac G5 is a desktop computer first produced in 2003 by the Apple Corporation. This guide will review the repair process of an Apple PowerMac G5 model number A1047 EMC 2061 from 2004. It was discontinued in 2006 as part of the Intel switch first to developers then consumers.

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My power mac dual powers up but with no boot

hello to all, I need some advice from an expert to understand my problem, my powermac g5 dual tower lights, the fans run (I noticed that the top fan where there is not SPEAKER runs regularly) but it does not happen nothing, not doing her gong apple startup, the power LED remains off, so it can not communicate with me with flashes, I have tried to reset the motherboard with its reset button unsuccessfully for several minutes, I would understand the problem to be able to safely buy the spare, thanks very much.

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I spoke with a technician in Italy told me that the problem might be in the CPU which is a frequent problem in these models, you can tell if one of the two cpu is broken? the cpu can disable in order to use one of them?

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I am just a beginner but when this happened to my G5, I pressed the Command tab and 'R' which identified where the fault coming from .There is a option to press Repair and the problem was solved. No harm in trying this and if doesn't work, contact more professional in the field. Bernard.

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About the Power Mac G5 (Late 2005) diagnostic LEDs

Power Mac G5 (Late 2005) computers have six or seven built-in diagnostic LEDs on the main logic board that can help Apple Authorized Service Providers (AASPs) troubleshoot certain issues. These LEDs are located to the left of the top bank of DIMM connectors (where your computer's RAM is installed): http://support.apple.com/en-us/HT2652

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I Mayer no led in the front...

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I mayer non led in the front panel..

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you would need to take the side panel off as the LED's are located above the top bank of DIMM connectors (ram slots)

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hello GUYS !! I found out what the problem was, the coolant has lost its liquid and eroded one of the two CPU (2.50 GHz) and render it unusable, fortunately the damage is only the cpu, motherboard and the other cpu look good , I'm trying to replace the cpu route with a smaller one (2.00 ghz) I have not found an equal, I do not know if it works, I tried to remove the cpu route and leave the running, but my mac does not turn on, then I think it must have all 2 cpu mounted to run.

I created another post because I want to be replaced, the liquid cooling system with two air coolers, I read a lot on the forums and I realized that this problem is very common in this Oedipus of powermac g5, the engineers of steve have wrong? I think so ..

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rbutry will be eternally grateful.
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