-
All replies
-
Helpful answers
-
Mar 6, 2012 3:17 PM in response to harveyfromfreeltonby Klaus1,Do other system alerts work?
If not try this (you forgot to say what iMac and version of OS X you use):
Resetting the SMU on a G5 iMac:
http://support.apple.com/kb/HT1767
and on resetting the PMU on a Power Mac G5, G4 and G3 :
http://support.apple.com/kb/HT1939?viewlocale=en_US
http://support.apple.com/kb/HT1436
Resetting the SMC (System Management Controller) on Intel-based Macs:
http://support.apple.com/kb/ht3964
Resetting your Mac's PRAM and NVRAM: