-
All replies
-
Helpful answers
-
Apr 3, 2016 6:59 PM in response to patrick.dcby BDAqua,Hi,
It could be the PSU, but...
Might be time to replace the PRAM Battery, 4 years is close to their lifespan, far less if ever without AC power, & can cause strange startup problems...
http://eshop.macsales.com/item/Newer%20Technology/BAA36VPRAM/
-
Apr 4, 2016 6:52 AM in response to patrick.dcby Limnos,Texas Mac Man's PRAM, battery, PMU tutorial - https://sites.google.com/site/macpram/mac-pram-nvram-cuda-pmu-battery-tutorial