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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
Multiple Displays have problems with El Capitan in OS X El Capitan by shinkyo81	Show 4 Bookmarks4	139	80971	September 21, 2016 11:55 AM by shinkyo81
Macbook pro keyboard doesn't work (and trackpad too) in MacBook Pro by Terobereo	Show 0 Bookmarks0	7	109	September 21, 2016 11:44 AM by Terobereo
Can't rollback to Mac OS X after Windows 10 installation in Boot Camp by JimmyCMPIT	Show 1 Bookmarks1	6	66	September 21, 2016 11:38 AM by JimmyCMPIT
Restart & Shutdown not working? in Mac Pro by lllaass	Show 0 Bookmarks0	1	28	September 21, 2016 9:00 AM by lllaass
Macbook pro webcam just stopped working in MacBook Pro by joe_7399	Show 1 Bookmarks1	1	51	September 21, 2016 8:41 AM by joe_7399
10.11.6 update making my battery not charge? in MacBook Pro by phil from huntington beach	Show 0 Bookmarks0	11	175	September 21, 2016 8:04 AM by phil from huntington beach
Why is my 4K display not working with macOS on a mac pro? in Mac Pro by BinaryRefinary	Show 0 Bookmarks0	3	95	September 21, 2016 7:52 AM by BinaryRefinary
Wake up after sleep mode in Mac Pro by lllaass	Show 0 Bookmarks0	2	24	September 21, 2016 6:49 AM by lllaass
After,moving,I,setup,my,mini mac and,added,3,external,drives,but,do,not,see,them,listed,anywhere,what,happened,t o,them?,How,would,I,find,them?,They,contain,most,of,my,pictures. in Mac mini by lllaass	Show 0 Bookmarks0	2	29	September 21, 2016 6:41 AM by lllaass
Q: Are you sure you want to shut down your computer now? Message in MacBook Air by OGELTHORPE	Show 0 Bookmarks0	6	103	September 21, 2016 3:47 AM by OGELTHORPE
External iSight not recognized in macOS Sierra in macOS Sierra by Jonesy_AU	Show 0 Bookmarks0	2	52	September 21, 2016 3:40 AM by Jonesy_AU
Disk Utility problem... in macOS Sierra by iOmne	Show 1 Bookmarks1	4	59	September 21, 2016 12:28 AM by iOmne
late 2011 MBP shuts down when unplugged in MacBook Pro by marc cardwell	Show 0 Bookmarks0	5	50	September 20, 2016 3:31 PM by marc cardwell
In need of serious help in Boot Camp by skido10	Show 0 Bookmarks0	4	108	September 20, 2016 1:42 PM by skido10
El Capitan suddenly not recognizing optical drive in OS X El Capitan by Loner T	Show 1 Bookmarks1	62	536	September 20, 2016 12:24 PM by Loner T
El Capitan running slowly? in OS X El Capitan by John Galt	Show 13 Bookmarks13	448	284001	September 20, 2016 11:50 AM by John Galt
Macbook Pro 13" Late-2011 won't boot in MacBook Pro by OGELTHORPE	Show 1 Bookmarks1	2	38	September 20, 2016 4:51 AM by OGELTHORPE
Hi - there is no where to input my password on the log in screen - I'm not backed up either. Please help in Mac Pro by lllaass	Show 0 Bookmarks0	2	27	September 20, 2016 12:49 AM by lllaass
MacBook Air running out of memory with only safari and mail running? What is wrong? in MacBook Air by kaz-k	Show 0 Bookmarks0	1	28	September 19, 2016 9:39 PM by kaz-k
Macbook Pro black screen on os x install in MacBook Pro by lobo_fl	Show 0 Bookmarks0	5	47	September 19, 2016 9:24 PM by lobo_fl
New battery won't charge in MacBook Pro by Sippinjoes	Show 0 Bookmarks0	15	156	September 19, 2016 6:03 PM by Sippinjoes
Problem with iMac after period of inactivity in OS X El Capitan by bratman91	Show 0 Bookmarks0	4	47	September 19, 2016 3:16 PM by bratman91
2011 MacBook Pro and Discrete Graphics Card in MacBook Pro by danallenhouston	Show 601 Bookmarks601	13343	5565830	September 19, 2016 2:34 PM by danallenhouston
Hardware Test Error 4SNS/1/40000001:ICOC--124 in MacBook Air by kaz-k	Show 0 Bookmarks0	1	22	September 19, 2016 2:24 PM by kaz-k
white screen on iMac in iMac by den.thed	Show 0 Bookmarks0	4	41	September 19, 2016 12:57 PM by den.thed
MacBook Bluetooth is unavailable. in Bluetooth by Barry Hemphill	Show 0 Bookmarks0	3	43	September 19, 2016 7:02 AM by Barry Hemphill
Mid 2012 MBP "Service Battery" Warning in MacBook Pro by dwb	Show 0 Bookmarks0	3	32	September 19, 2016 11:07 AM by dwb
"Disk Not Ejected Properly" error after EL Capitan goes to sleep and wakes up again. in OS X El Capitan by J Bertram	Show 12 Bookmarks12	198	27430	September 19, 2016 9:41 AM by J Bertram
too long to wake up, keyboard connection lost, menu bar is freezing in iMac by MikaZed	Show 0 Bookmarks0	4	33	September 19, 2016 8:31 AM by MikaZed
Intermittent spinning beachball in MacBook Pro by John Galt	Show 0 Bookmarks0	7	78	September 19, 2016 8:14 AM by John Galt

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