System Management Controller: Difference between revisions

Browse history interactively

← Previous edit

Content deleted Content added

VisualWikitext

Revision as of 00:14, 2 March 2019 edit 68.251.242.19 (talk) Fixed typo Tags: canned edit summary references removed Mobile edit Mobile web edit ← Previous edit		Latest revision as of 01:11, 6 May 2025 edit undo 35.33.218.163 (talk) SMC does not exist on Apple Silicon machines. Tags: Visual edit Mobile edit Mobile web edit
(16 intermediate revisions by 13 users not shown)
Line 1: The '''System Management Controller''' ('''SMC''') is a subsystem of [[Intel]] ~~processor-based~~ [[Macintosh]] computers. It is similar in function to the older [[System Management Unit\|SMU]] or [[Power Management Unit\|PMU]] of ~~non-Intel~~PowerPC based Macintosh computers.<ref>{{cite web \|title=HT2368: About the SMC Firmware Updates \|url=http://support.apple.com:80/kb/HT2368?viewlocale=en_US \|website=Official Apple Support ~~\|publisher=~~ \|archiveurl=https://web.archive.org/web/20081223202919/http://support.apple.com/kb/HT2368?viewlocale=en_US \|archivedate=2008-12-23 \|~~deadurl=yes \|df~~url-status=dead }}</ref><ref>{{cite web \|title=HT202040: About the SMC Firmware Updates \|url=https://support.apple.com/en-us/HT202040 \|website=Official Apple Support \|publisher= \|accessdate=2018-04-28 \|archive-date=2021-05-19 \|archive-url=https://web.archive.org/web/20210519004618/https://support.apple.com/en-us/HT202040 \|url-status=live }}</ref> ==Overview== ~~Too gay to explain~~ The SMC has roles in controlling thermal and power management, battery charging, video mode switching, [[sleep mode\|sleep and wake]], [[hibernation (computing)\|hibernation]], and [[light-emitting diode\|LED]] indicators. It also enables enforcement of the [[macOS]] [[End-user license agreement\|End User License]], allowing macOS to identify when it is running on non-Apple hardware.<ref>{{cite podcast \|host=[[Randal L. Schwartz\|Randal Schwartz]] \|date=2010-08-11 \|df=mdy \|title=VirtualBox \|url=https://twit.tv/shows/floss-weekly/episodes/130 \|website=[[FLOSS Weekly]] \|series=130 \|publisher=[[TWiT.tv]] \|accessdate=2018-04-28 \|archive-date=2018-04-28 \|archive-url=https://web.archive.org/web/20180428181223/https://twit.tv/shows/floss-weekly/episodes/130 \|url-status=live }}</ref> ==See also== * [[Baseboard management controller]] (BMC) * [[Embedded controller]] (EC) * [[Enhanced Serial Peripheral Interface Bus]] (eSPI) * [[Low Pin Count]] (LPC) * [[Power management integrated circuit]] (PMIC) * [[Power Management Unit]] (PMU) * [[System Management Bus]] (SMBus) * [[System Management Unit]] (SMU) * [[Apple T2]] ==References==