crwdns2934241:0crwdne2934241:0 Victor Huff

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Why won't my PowerBook power up after replacing RAM?

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I followed your step by step instructions, however when I go to power up, I hear 3 tones, have no screen and the beacon stays lit constantly.

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PowerBook G4 Aluminum 15" 1.5-1.67 GHz

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open