HT201177: Get help with video issues on external displays connected to your Mac

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Q: when i power on my lap top screen is blank and continously beep the 3 beep incroments

my mac book bought 2007 when powering on wont start up screen is blank and beeps continuously. what can this be or what can i do to fix this problem? please help

Posted on Dec 28, 2013 8:27 AM

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Q: when i power on my lap top screen is blank and continously beep the 3 beep incroments

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