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Helpful answers
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Apr 11, 2015 7:40 PM in response to barpapby Baby Boomer (USofA),http://support.apple.com/kb/HT1547
1 beep = no RAM installed
2 beeps = incompatible RAM types
3 beeps = no good banks
4 beeps = no good boot images in the boot ROM (and/or bad sys config block)
5 beeps = processor is not usable
