pram battery housing broken, computer does not start, power lights upis there a login board or pmu reset button on a iMAC 2111 The PRAM batter holder is broken at the bottom edge and will not...
Resposta para "Won't Boot Past Apple Logo, White Screen, HELP!"I just fixed a similar problem that was using a wireless keyboard the batteries were dead. The original key board was also messed up. so I brought one of my working keyboards to the friends house and it worked just fine on the machine. I also hooked up an exteranl drive with an operating system on it via firewire Held down the option key and when it started up it showed me the external drive I then booted with that Opearting system which had been restored to the external drive form a different machine, Then I ran a defrag program which said the drive was 64 % fragmented. So there was more than one problem wrong. I defragged the drive using drive genius and replaced the batteries in the key board and all is well Apple users think that defragging is not needed they are sooooo wrong about this thought. Mac cannot defrag themselves with MAC OS software It requires third party software