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Modello inizio 2011, A1278 / processore i5 2,3 GHz o i7 2,7 GHz

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Won't turn on and the Magsafe light stays green , sleep light blinking

my computer ran out of battery and died. I plugged it back in and now it does not charge, the light stays green and does not turn amber. In addition, when it is plugged in without pressing the power button the sleep light indicator flashes rapidly and is accompanied by a beeping noise. power bottom dosent do anything , i open back cover disconnect the battery and it wont turn on, disconnect the hdd the sleep light indicator turn off , but when it plugged in cpu fan works for few sec and then stop and the again work for few sec ...

i also Reseat the RAM , but no changes

also when i plugged in the battery indicator wont blinking.

I tried the SMC reset a couple of times did not work (it wont turn on to do the job)

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Soluzione Prescelta

Try seating in only one ram individually.

Try one in either slots. In some cases one ram slot may go bad on the logic board if the MacBook has been dropped.

Or it could just be a faulty ram stick.

Is it doing like a slow beep?

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thank for your quick answer ,i try either slots , nothing change , i change the ram stick too,this solution is not working for me

about the sound , the sound is for the hdd , the hdd tries to turn on and cant turn on , the sleep light flash with that sound , i disconnect the hdd , but cpu fan goes the same as before turn for few sec the stop and again turn....

(even when the lead is closed when i plugged in , its start to flashing , and hdd sound come(if you go near the hdd you can hear the sound, and the cpu fan start stop start stop...)

da

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kaveh sarà eternamente grato.
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