Tus Tswj Tswj Txheej Txheem (SMC) tswj ntau lub luag haujlwm ntawm Mac. SMC yog kho vajtse uas tau muab tso rau hauv Mac's motherboard. Nws lub hom phiaj yog tso tawm Mac lub processor los ntawm kev saib xyuas cov cuab yeej kho vajtse ua haujlwm. Nrog ntau lub luag haujlwm tseem ceeb ua los ntawm SMC, rov pib dua SMC rau nws lub xeev qub tuaj yeem txhim kho cov teeb meem.
Functions Tswj los ntawm SMC
Daim ntawv teev cov haujlwm tswj hwm los ntawm SMC yog qhov ntev thiab txawv nyob ntawm tus qauv Mac.
SMC ua haujlwm hauv qab no:
- Teb rau cov xovxwm ntawm lub zog khawm, suav nrog kev txiav txim siab seb lub xovxwm puas yog rau lub zog tawm lossis pw tsaug zog, lossis yog qhov yuam kev los ntawm koj tus miv.
- Ntawm thiab teb rau qhov qhib lossis kaw ntawm lub hau ntawm lub tshuab nqa Mac.
- Tswj lub roj teeb ua haujlwm tau yooj yim, suav nrog kev them nqi, ntsuas ntsuas, thiab tso saib lub sijhawm roj teeb ntxiv.
- Tuav kev tswj hwm thermal ntawm Mac sab hauv los ntawm kev ntsuas qhov ntsuas kub hauv Mac thiab kho cov kiv cua nrawm los tsim lossis txo cov cua ntws.
- Siv Sudden Motion Sensor los teb cov lus tsa suab tam sim ntawm Mac laptop thiab ua rau tiv thaiv kev puas tsuaj.
- Nthuav cov teeb pom kev zoo ib puag ncig thiab teeb tsa cov teeb pom kev zoo rau cov khoom siv.
- Controls keyboard backlighting.
- Controls built-in zaub backlighting.
- Controls the status indicator lights.
- Xaiv lwm qhov chaw yees duab sab hauv lossis sab hauv ntawm iMacs nrog lub peev xwm tawm tswv yim video.
- Pib hard drive spin-downs thiab zog-up sequence.
- Controls pw tsaug zog ua haujlwm.
- Controls trackpad zog rau Mac qauv nrog trackpads.
Cim koj yuav tsum rov pib dua SMC
Resetting SMC tsis yog kho-tag nrho, tab sis nws kho ntau cov tsos mob uas Mac yuav raug kev txom nyem los ntawm, suav nrog:
- Kev pw tsaug zog tsis zoo, suav nrog tsis sawv los lossis tsis nkag mus pw.
- Nkag mus pw tsis xav txog, txawm tias koj ua haujlwm.
- Mac laptops uas tsis teb rau lub hau qhib lossis kaw.
- Tsis teb rau lub zog khawm raug nias.
- Qhov taw qhia lub zog tsis tso tawm lossis qhia tsis raug.
- Kev ua haujlwm qeeb, txawm tias thaum Lub Sijhawm Saib Xyuas Kev Ua Haujlwm qhia tau siv CPU me me.
- Target Display hom tsis ua haujlwm raug.
- Lub roj teeb tsis them lossis siv sijhawm ntau dhau los them.
- USB ports tsis ua haujlwm.
- Wi-Fi kho vajtse tau tshaj tawm tias ploj lawm lossis tsis ua haujlwm.
- Bluetooth tsis ua haujlwm.
- Fans khiav nrawm heev.
- Lub teeb pom kev zoo tsis teb rau lub teeb pom kev hloov pauv.
- Cov teeb qhia xwm txheej tsis ua haujlwm raug lossis raug daig hauv lub xeev zoo li qub.
- Bouncing Dock icons bouncing yam tsis muaj kev cuam tshuam app launching.
- Mac Pro (2013) chaw nres nkoj illumination tsis qhib lossis kaw.
kab hauv qab
Yog tias koj ntsib cov tsos mob no nrog koj Mac, rov pib dua SMC yuav yog qhov kho koj xav tau. Txoj kev rov pib dua Mac's SMC nyob ntawm hom Mac koj muaj. Txhua SMC rov pib cov lus qhia yuav tsum tau kaw koj lub Mac ua ntej. Yog tias koj lub Mac tsis kaw, nias thiab tuav lub hwj chim khawm kom txog thaum lub Mac kaw, uas feem ntau yuav siv sijhawm 10 vib nas this lossis li ntawd.
Reset SMC ntawm Mac Notebooks Nrog Cov Roj Teeb Tsis Tshem Tawm
Txhua tus qauv MacBook Air muaj cov roj teeb uas tsis tuaj yeem tshem tau. Yog li ua MacBook thiab MacBook Pro qauv uas tau qhia nyob rau nruab nrab-2009 txog rau tam sim no, tshwj tsis yog rau 13-nti nruab nrab-2009 MacBook. Txoj kev no tsis pom zoo rau Macs nrog Apple T2 kev ruaj ntseg nti qhia hauv 2018.
Txhawm rau rov pib dua SMC:
- Kaw lub Mac.
-
Ntawm cov keyboard built-in, ib txhij nias thiab tuav lub laug Shift, left Control, thiab left Kev xaiv tus yuam sij ntawm cov keyboard thaum koj nias lub power khawm rau 10 vib nas this. (Yog tias koj muaj MacBook Pro nrog Touch ID, khawm Touch ID kuj yog lub zog khawm.)
Txoj kev no tsis ua haujlwm los ntawm cov keyboard sab nraud.
- Tshuaj txhua tus yuam sij tib lub sijhawm.
-
Nias lub power khawm pib lub Mac.
Reset SMC ntawm Mac Notebooks Nrog Cov Roj Teeb Tshem Tawm
Apple laptops nrog cov roj teeb tshem tau suav nrog 13-nti, nruab nrab xyoo 2009 MacBook, thiab tag nrho MacBooks thiab MacBook Pros qhia thaum ntxov 2009 thiab ua ntej.
- Kaw lub Mac.
- Txhob lub roj teeb.
- Nias thiab tuav lub power khawm rau tsib vib nas this.
- Tshuav lub power khawm.
- Reinstall lub roj teeb.
- Tig rau Mac los ntawm nias lub power khawm.
Reset SMC ntawm Mac Notebooks Nrog T2 Chip
Lub MacBook Cua thiab MacBook Pro tau tshaj tawm xyoo 2018 thiab tom qab ntawd muaj Apple T2 nti.
Txhawm rau rov pib SMC ntawm cov ntawv sau no:
- Kaw lub Mac.
- Nias lub power khawm thiab tuav 10 vib nas this. Tso lub pob.
-
Nias lub power khawm tom qab ob peb feeb los qhib lub Mac laptop.
Yog tias koj lub computer teeb meem txuas ntxiv mus:
- Kaw lub Mac.
- Nias thiab tuav lub right Ua haujlwm tus yuam sij, tus sab laug Option tus yuam sij, thiab left Controltus yuam sij rau xya vib nas this. Txuas ntxiv tuav cov yuam sij no thaum koj nias lub pob power rau lwm xya vib nas this.
- Tshuaj txhua tus yuam sij tib lub sijhawm.
- Nias lub power khawm kom qhib lub Mac.
Reset SMC ntawm Mac Desktops Nrog T2 Chip
Yog tias koj muaj iMac Pro lossis Mac Mini los ntawm 2018 lossis tom qab lossis Mac Pro los ntawm 2019 lossis tom qab, nws muaj Apple T2 nti. Koj tuaj yeem paub meej qhov no hauv Txog Qhov Mac hauv Apple zaub mov.
Apple tshaj tawm thaum Lub Peb Hlis 2021 nws tau txiav tawm iMac Pro, txawm li cas los xij, cov lus qhia no tseem yuav siv tau rau cov qauv uas twb muaj lawm.
Txhawm rau rov pib dua cov desktop Macs:
- Kaw lub Mac thiab tshem tawm cov hlua hluav taws xob.
- Plug lub hwj chim rov qab tom qab 15 vib nas this.
- Tom qab tsib vib nas this, nias lub power khawm kom qhib lub Mac.
Reset SMC ntawm Lwm Tus Mac Desktops
Cov khoos phis tawj desktop uas tsis muaj T2 nti, uas yog feem ntau ntawm cov tsim ua ntej 2018, suav nrog Mac Pro, iMac, thiab Mac mini.
Txhawm rau rov pib dua SMC ntawm cov khoom siv no:
- Kaw lub Mac.
- Unplug Mac lub hwj chim qaum.
- Tau 15 seconds.
- Reconnect the Mac's power cord.
- Tau tsib vib nas this.
- Start the Mac los ntawm nias lub power khawm.
Lwm yam SMC Rov pib dua rau Mac Pro (2012 thiab yav dhau los)
Yog tias koj muaj 2012 lossis ntxov Mac Pro uas tsis teb rau qhov qub SMC rov pib dua, yuam kom phau ntawv SMC rov pib dua los ntawm kev siv SMC pib dua khawm nyob ntawm Mac Pro lub motherboard.
- Kaw lub Mac.
- Unplug Mac lub hwj chim qaum.
- Qhib Mac Pro sab nkag vaj huam sib luag.
- Cia li hauv qab ntawm Drive 4 sled thiab nyob ib sab rau sab saum toj PCI-e qhov yog lub pob me me sau SMC. Nias thiab tuav lub pob no rau 10 vib nas this.
- Kaw Mac Pro lub qhov rooj.
- Reconnect the Mac's power cord.
- Tau tsib vib nas this.
- Start the Mac los ntawm nias lub power khawm.
Tam sim no koj tau rov pib dua SMC ntawm koj lub Mac, nws yuav tsum rov qab mus ua haujlwm raws li koj xav tau. Yog tias SMC rov pib dua tsis kho qhov teeb meem, muab nws nrog PRAM rov pib dua. Txawm hais tias PRAM ua haujlwm txawv ntawm SMC, nws khaws qee cov ntaub ntawv uas SMC siv.
Yog tias koj tseem muaj teeb meem, khiav Apple Hardware Test los txiav txim qhov cuam tshuam tsis zoo ntawm koj lub Mac.
