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kalt
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iMac does not power up

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Hello, i have a mid 2010 21.5 imac that refuses to power up. The #1 diag led is on but as soon as i press the power button the led turns off and does not come back on unless i unplug the imac from the wall. No other led light up at any point.

Do you think this is a bad PSU or logic board?

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mayer
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Your LEDs indicate a failed power supply.

Thanks, i ordered a new psu. I will let you know if this fixed the problem.

kalt,

Hello, i replaced the psu but the leds still act as before. I tried disconnecting all non essential components and that did not help. I am guessing this is a logic board error.

kalt,

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