crwdns2934243:0crwdne2934243:0 David Hodson

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Start up chime (POST) keeps repeating, never gets display.

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Using the power adapter (two seperate adapters) or battery power doesn't make a difference.  When pressing power, the Mac keeps repeating the start up chime.  Sometimes the LED on the power connector goes on an off.  Shift key LED  never activates.  I've swapped out RAM with different pair and still the same.  Could this be IO board?

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open

crwdns2934241:0crwdne2934241:0 Keneke Kimokeo

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Start up chime (POST) keeps repeating, never gets display.

crwdns2934249:0crwdne2934249:0:

Using the power adapter (two seperate adapters) or battery power doesn't make a difference.  When pressing power, the Mac keeps repeating the start up chime.  Sometimes the LED on the power connector goes on an off.  Shift key LED  never activates.  I've swapped out RAM with different pair and still the same.  Could this be IO board?

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MacBook Pro 15in. 2.4 Core 2 Duo Models A1226

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open