Q: my imac won't boot and is making a loud beeping sound
my imac won't boot and is making a loud beeping sound - any ideas. i tried replacing the ram but that didn't help.
iMac
Posted on May 29, 2013 1:34 PM
by Baby Boomer (USofA),Solvedanswer
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
Posted on May 29, 2013 1:48 PM

