Apple Happy » iBook G4 http://www.applehappy.com Keep your Apple Happy! Wed, 07 Oct 2009 02:06:33 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Reset Power Management Unit (PMU) http://www.applehappy.com/mac/reset-power-management-unit-pmu http://www.applehappy.com/mac/reset-power-management-unit-pmu#comments Tue, 22 May 2007 00:54:35 +0000 Joe Ayala http://www.applehappy.com/mac/reset-power-management-unit-pmu Sometimes your Apple laptop doesn’t respond when you press the power key. You can easily start to move into panic mode. I just had a client almost slip into this mode. The problem was her laptop battery has competly drained. I could of waited until the battery was charged for a little bit. Yet to show that her laptop was fine I reseted the Power Management Unit (PMU). To reset the Power Management Unit , take out the battery, disconnect the power adapter and hold down the power button for 15 seconds. According to Apple the Power Management Unit controls, “backlighting, hard disk spin down, sleep and wake, some charging aspects, trackpad control, and some input/output as it relates to the computer sleeping.”

So reset your Power Management Unit when your Apple laptop is giving you trouble sleeping, waking or turning on.

Hope you enjoyed this quick tip to keep your Apple Happy!

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