Model A1225 / Mid 2007 and Early 2008 / 2.4, 2.8, or 3.06 GHz Core 2 Duo processor

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Power supply replacement but same problem

Hi everybody,

following your guides I have replaced easily the power supply in my iMac 24 2134 mid 2007.

When I connect to power, the first led is on but in few seconds go off , same problem with the old power supply.

What I have to check now?

Thank you all!


Answered! View the answer I have this problem too

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What was the source of your part?


Hi Mayer,

I bought on ebay "macpremiumparts" US seller with new power supply with pressure wall. Is the only seller I found had the parts I need.


Mayer, do you think the problem is the seller or the part I bought?


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Chosen Solution

They look reputable, I would have to try another part. That's what your diagnostic LEDs are saying. Check the part numbers on both.

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