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Snow Leopard :: PRAM Reset Not Working


I'm trying to reset my PRAM in an attempt to resolve screen flicker issues and freezing issues with my macbook pro late 2008 9400 and 9600 GPU.When pressing the command+alt(option)+P+R after the first startup chime sound, I'm not getting the supposed second or third chime sound. The system just boots as normal.Does anyone know how I can reset the PRAM ? Thanks a lot.

Information:
macbook pro late 2008
Mac OS X (10.6.5)


View 5 Replies (Posted: Dec 30, 2010)

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