Hopefully you and your family are OK from the typhoon Haiyan. Our prayers go out to all that were effected by the super storm.
+
Hopefully you and your family are OK from typhoon Haiyan. Our prayers go out to all that were effected by the super storm.
As to your iMac problem. Try lowering the brightness to as low as you can and still use your system does it work better then? Also do you have an external display which you can connect? If you do does it go out with the main display?
Depending on what you find you could also run Apple's Hardware Test '''[http://support.apple.com/kb/HT1509|AHT]''' and see what error code you get. Also you could try running a temperature/fan monitoring app to see what it reports.
I suspect the thermal sensor on the LCD is failing and/or you have some dirt buildup which is blocking the systems cooling.
Hopefully you and your family are OK from the typhoon Haiyan. Our prayers go out to all that were effected by the super storm.
As to your iMac problem. Try lowering the brightness to as low as you can and still use your system does it work better then? Also do you have an external display which you can connect? If you do does it go out with the main display?
Depending on what you find you could also run Apple's Hardware Test '''[http://support.apple.com/kb/HT1509|AHT]''' and see what error code you get. Also you could try running a temperature/fan monitoring app to see what it reports.
I suspect the thermal sensor on the LCD is failing and/or you have some dirt buildup which is blocking the systems cooling.