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HT1431: Resetting PowerBook and iBook Power Management Unit (PMU)

Learn about Resetting PowerBook and iBook Power Management Unit (PMU)

Discussions

Title			Views	Latest activity
superdrive won't mount dvd in iMac by shldr2thewheel	Show 0 Bookmarks0	8	2807	February 16, 2012 2:39 AM by shldr2thewheel
Reading of an older dvd in MacBook (13-inch, 2006-2010) by shldr2thewheel	Show 0 Bookmarks0	5	226	February 14, 2012 5:42 PM by shldr2thewheel
Why is my macbook pro not turning on? in MacBook Pro by The hatter	Show 0 Bookmarks0	3	8777	February 7, 2012 3:49 PM by The hatter
My ibook keeps on going to a gray screen after about 15 to 20 minutes of use? in iBook by welshwonder	Show 0 Bookmarks0	4	411	February 7, 2012 9:09 AM by welshwonder
Screen gone very dark even after restart in iBook by Ronda Wilson	Show 0 Bookmarks0	1	577	February 7, 2012 6:26 AM by Ronda Wilson
My battery icon has an "x", and the system profiler says there is and error gathering information when i click on "power". New battery, LED's show it's charged. ??? in PowerBook by Allan Jones	Show 0 Bookmarks0	5	2521	February 6, 2012 10:02 AM by Allan Jones
My powerbook g4 15inch went lame after a long session of nonstop use.The mac osx froze up and I had to push the power button to restart.Now when I push power it makes the start up chime then goes to a grey screen (no apple logo). in PowerBook by old comm guy	Show 0 Bookmarks0	2	552	February 5, 2012 12:55 PM by old comm guy
My iBook G4 won't charge or recognize AC input in iBook by Ronda Wilson	Show 0 Bookmarks0	1	4720	February 5, 2012 11:38 AM by Ronda Wilson
CD ISSUE in iMac by shldr2thewheel	Show 0 Bookmarks0	3	243	February 4, 2012 3:08 AM by shldr2thewheel
I got a gray screen after start up, only access to open firmware possible in PowerBook by old comm guy	Show 0 Bookmarks0	3	999	February 3, 2012 4:26 PM by old comm guy
17" Powerbook G4 1Ghz, no sound/popping noises? in PowerBook by Mark Thornton	Show 0 Bookmarks0	2	941	February 2, 2012 5:07 AM by Mark Thornton
My disk drive quit keeping dvd's in MacBook (13-inch, 2006-2010) by acidgirl	Show 1 Bookmarks1	5	297	February 1, 2012 6:48 PM by acidgirl
My macbook keeps ejecting iLife 11 family pack in MacBook (13-inch, 2006-2010) by shldr2thewheel	Show 0 Bookmarks0	1	476	January 28, 2012 6:42 PM by shldr2thewheel
Help! I would like to revive my iBook G4 in iBook by Ronda Wilson	Show 0 Bookmarks0	4	842	January 24, 2012 1:51 AM by Ronda Wilson
my iMac won't accept disks in iMac by oldeestunes	Show 0 Bookmarks0	2	986	January 23, 2012 1:58 PM by oldeestunes
my imac dose not insert discs in iMac by rkaufmann87	Show 0 Bookmarks0	6	393	January 22, 2012 9:22 AM by rkaufmann87
cd/dvd ejecting cd before trying to read in MacBook (13-inch, 2006-2010) by shldr2thewheel	Show 0 Bookmarks0	1	183	January 21, 2012 3:48 PM by shldr2thewheel
iBook battery doesnt charge quickly in iBook by boulder38	Show 0 Bookmarks0	6	642	January 20, 2012 2:33 AM by boulder38
CD put in; comes right back out...? in MacBook (13-inch, 2006-2010) by shldr2thewheel	Show 0 Bookmarks0	1	377	January 19, 2012 11:23 AM by shldr2thewheel
Trackpad and button do not respond in PowerBook by Allan Jones	Show 0 Bookmarks0	3	493	January 18, 2012 8:33 AM by Allan Jones
Blue screen without login options? in MacBook Pro by aknh	Show 1 Bookmarks1	3	368	January 14, 2012 6:53 PM by aknh
My display does not come on but has vga out. Moving the display brings up shut down box. Is this bad data cable? in iBook by Ronda Wilson	Show 0 Bookmarks0	7	678	January 9, 2012 8:31 AM by Ronda Wilson

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