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Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

Macbook Pro won't turn on - RAM problem?


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RichardPOK

 
Member Since: Dec 22, 2007
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I have 2 1GB sticks from my old MB that I tried putting into my MBP. The MBP wouldn't turn on with the new sticks, so I threw the old ones back in. Now it still wont start. Any help?
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RichardPOK

 
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I hear something on the inside move, maybe sounds like the disc drive. Then the white light on the front starts flashing constant. Worked 100% fine before this.
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cwa107

 
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Mac Specs: 15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD

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It sounds like those memory modules are not seated properly. I would open it up and reseat them.

Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!
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RichardPOK

 
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I open and moved and tried different ram atleast 30 times. Cant push the sticks in any harder.
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cwa107

 
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Mac Specs: 15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD

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Do you have a can of compressed air? Perhaps remove the modules and blow the slots out.

You may also want to try resetting the SMC:

Intel-based Macs: Resetting the System Management Controller (SMC)

Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!
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RichardPOK

 
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I had tried resetting the SMC, but it didnt work.

Just tried now doing it the way it says to do for a book without a removable battery (which mine does have a removable) and it WORKED!

On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time. Released and it booted. Thank you.
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