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HT201295: Reset the System Management Controller (SMC) on your Mac

Learn about Reset the System Management Controller (SMC) on your Mac

Discussions

Title			Views	Latest activity
Sierra Update has Broken my MacBook Pro Retina 2013 Computer in macOS Sierra by lllaass	Show 0 Bookmarks0	1	117	October 5, 2016 1:24 AM by lllaass
Macbook pro suddenly ask login in OS X El Capitan by Peggy	Show 0 Bookmarks0	6	54	October 4, 2016 9:45 PM by Peggy
Late 2011 MBP shuts off during OS install in MacBook Pro by kaz-k	Show 0 Bookmarks0	1	15	October 4, 2016 7:32 PM by kaz-k
Macbook air 2013 won't turn on and charge in MacBook Air by Macintosh Geek	Show 1 Bookmarks1	3	88	October 4, 2016 3:50 PM by Macintosh Geek
iiMac (Retina 5K, 27-inch, Late 2015), has issues when it is in sleep mode in iMac by JimmyCMPIT	Show 0 Bookmarks0	1	15	October 4, 2016 1:51 PM by JimmyCMPIT
iMac 27" mid 2011 - Intermittent issue with CPU fan running at full speed and sleep mode. in iMac by 4ntoine	Show 0 Bookmarks0	10	40	October 4, 2016 1:42 PM by 4ntoine
photoanalysisd still chewing CPU after 2 weeks in macOS Sierra by chris_g1	Show 0 Bookmarks0	1	101	October 4, 2016 1:19 PM by chris_g1
cannot enlarge photos since installing Sierra in Photos for Mac by ephill	Show 0 Bookmarks0	18	107	October 4, 2016 12:46 PM by ephill
Usb connection on macbook pro in MacBook Pro by lllaass	Show 0 Bookmarks0	1	55	October 4, 2016 12:30 PM by lllaass
Heating problem in MacBook Air by Rjmohan Beat$	Show 0 Bookmarks0	2	95	October 4, 2016 11:33 AM by Rjmohan Beat$
Upgrade? in MacBook Pro by lllaass	Show 0 Bookmarks0	6	44	October 4, 2016 10:36 AM by lllaass
Late 2009 iMac Sierra freezing & incomplete shut down in macOS Sierra by jeremy_v	Show 0 Bookmarks0	1	118	October 4, 2016 10:27 AM by jeremy_v
wifi keeps dropping since Yosemite upgrade in OS X Yosemite by OC Man	Show 26 Bookmarks26	310	251917	October 4, 2016 10:21 AM by OC Man
Bluetooth totally gone in windows 10 in Boot Camp by Loner T	Show 0 Bookmarks0	12	62	October 4, 2016 8:46 AM by Loner T
speakers are low in MacBook Pro by chrislanning	Show 0 Bookmarks0	2	19	October 4, 2016 3:20 AM by chrislanning
Can't type password into MacOS login in OS X El Capitan by jameson.h	Show 0 Bookmarks0	5	66	October 4, 2016 7:14 AM by jameson.h
imac 27 inch 2013 connect to mac pro target display, black screen in Mac Pro by lllaass	Show 0 Bookmarks0	3	34	October 4, 2016 6:48 AM by lllaass
macbook pro battery drains while shut down in MacBook Pro by OGELTHORPE	Show 0 Bookmarks0	1	30	October 4, 2016 2:53 AM by OGELTHORPE
MacBook Pro shuts down when battery is 75% in MacBook Pro by OGELTHORPE	Show 0 Bookmarks0	1	16	October 4, 2016 2:45 AM by OGELTHORPE
mac sierra startup progress hanging needs help in Mac Pro by lllaass	Show 0 Bookmarks0	1	30	October 4, 2016 1:11 AM by lllaass
Windows on Mac via Boot Camp: Apple keyboard not working in Windows 10 in Boot Camp by Loner T	Show 0 Bookmarks0	12	918	October 3, 2016 1:20 PM by Loner T
Macbook pro energy problem in MacBook Pro by Grant Bennet-Alder	Show 0 Bookmarks0	4	44	October 3, 2016 10:04 AM by Grant Bennet-Alder
New SSD does not show up during El Captain install in MacBook Pro by Edan114	Show 0 Bookmarks0	20	2708	October 3, 2016 4:39 AM by Edan114
Sierra Problems in macOS Sierra by dianeoforegon	Show 0 Bookmarks0	7	174	October 2, 2016 7:26 PM by dianeoforegon
Late 2013 Macbook Retina Screen Black Out / Flicker in MacBook Pro by Starr.C	Show 0 Bookmarks0	1	47	October 2, 2016 3:11 PM by Starr.C
Can not connect to wifi network on MacMini 2014 in Mac mini by lllaass	Show 0 Bookmarks0	3	20	October 2, 2016 12:56 PM by lllaass
frozen MacPro startup in MacBook Pro by Bertault	Show 0 Bookmarks0	2	42	October 2, 2016 11:48 AM by Bertault
External Drives Not Sleeping in iMac by den.thed	Show 0 Bookmarks0	1	25	October 2, 2016 9:30 AM by den.thed
Macbook 2007 (white) won't start in MacBook (13-inch, 2006-2010) by MAP35	Show 0 Bookmarks0	5	37	October 2, 2016 8:59 AM by MAP35
why it resets or restarts so often? in MacBook Pro by sanchconra	Show 0 Bookmarks0	2	35	October 2, 2016 6:20 AM by sanchconra

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