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Model A1312 / Mid 2010 / 3.2 GHz Core i3 or 2.8 & 3.6 GHz Core i5 or 2.93 GHz Core i7, ID iMac11,3

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black screen iMac, no beeps.

Hi,

I got 2 imacs 27 inch with a problem. The imac’s are starting with a black screen and give only some fan spin. When i haven’t install the ram the imac didn’t beep.

When i unplug the graphics card and start without the ram it’s beeping.

Is it a graphics card problem or is it another part?

And when it is the graphic card is reflow enough to get him alive?

Lars

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Look at the diagnostics LEDS on the logic board and tell us what they are showing. Also when you say you get beeps, the number of those beeps is important.

Come trovare e leggere i LED di diagnostica

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Hi,

I checked the diagnostic LED's and when i turn the imac on when the graphic card is plugged in, i get only the first led burning.

When i turn the imac on without graphic card plugged in led 1 and 2 turn on.

Did you know what the problem is?

da

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larsk sarà eternamente grato.
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