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Model A1311 / Mid 2011 / 2.5 & 2.7 GHz Core i5 or 2.8 GHz Core i7 Processor

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Diagnose the power supply

How can I test if the power supply is failing/failed.

Imac suddenly runs super slow.

Tried everything including a complete erase and reinstall of Lion. Still slow.

Thanks -Mike

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Filtre ölçütü:

There is a device called a power consumption meter, have each computer lab.

If you install the system and there is no improvement, the problem lies in some component not functioning properly.

I recommend you take the machine to a professional computer lab or lab producer.

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First check the diagnostic LEDs Why wont my iMac turn on?.

If they are good you may have a HD problem -corrupt, full or failing HD's will cause a machine to slow. So will running lots of applications. Unlike WinDUHows when you click the red button on an app (if more than one window can be open at a time), it does not automagically quit. Check the throbbers on the dock, look at Force Quit or the Activity Monitor to see if you have more than your expected apps running).

If this answer is acceptable please remember to return and mark it.

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