When your Mac starts acting up, you’ll probably run through some common troubleshooting procedures, such as restarting it, running Disk Utility, and perhaps performing a Safe Boot. Your repair repertoire should also include a couple of additional procedures that can occasionally eliminate otherwise inscrutable problems–zapping the NVRAM and resetting the SMC.
What is PRAM?What is NVRAM?When should you reset NVRAM?Is it safe to reset the NVRAM?How reset NVRAMM Mac (Apple silicon)Intel MacsTerminalAfter the resetWhat is SMC?When should you reset the SMC?Is it safe to reset the SMC?How to reset the SMCM-series MacsIntel MacsMacBook models with the T2 chipAll Desktop MacsMacBook models with a non-removable batteryMacBook models with a removable batteryTerminal
The procedures here apply to Intel-based Macs. M-Series Macs don’t have a procedure for zapping the NVRAM, and they don’t have an SMC. For M1-Series Macs, try shutting down the computer, waiting for several seconds, and then boot it.
What is PRAM?
Back in the day, the standard list of quick fixes for random Mac ailments always included clearing the PRAM. The P in PRAM stood for "parameter" (the RAM was just RAM–random ac
How to Reset PRAM on MacBook Pro: A Step-by-Step Guide
PRAM (Parameter RAM) is a type of Random Access Memory that stores hardware settings and preferences on a MacBook Pro. Resetting the PRAM can often resolve issues such as corrupted system settings, display and sound problems, and irregular behavior. In this article, we will guide you through the process of resetting the PRAM on a MacBook Pro.
Before You Begin
Before attempting to reset the PRAM, make sure you have considered the following:
- You have backed up your MacBook Pro&#;s data and made sure you have a secure backup.
- You understand that resetting the PRAM will erase any custom keyboard shortcuts, font sizes, and other preferences.
- You are aware that you may need to re-enable any disabled Bluetooth devices.
How to Reset PRAM on MacBook Pro: A Step-by-Step Guide
Method 1: Resetting the PRAM via the Key Combination
- Shut down your MacBook Pro.
- Locate the following keys:
- Command (⌘)
- Option (⌥)
- P and R keys (simultaneously)
- Press and hold the keys for at least 20 seconds.
- Release the keys and boot up your MacBook Pro.
- The PRAM will be reset, and your MacBook Pro will go through a restart
Ibland kan din Mac agera konstigt utan någon uppenbar anledning: lamporna fungerar inte korrekt, volyminställningarna är fel, skärmupplösningen ändras eller kanske startar inte din Mac alls.
Du kan lösa några problem genom att stänga alla dina appar och försöka starta om datorn. Ibland måste du dock återställa SMC och PRAM eller NVRAM. Så här gör du:
Vad är SMC i en Mac?
SMC är ett chip i Intel-baserade Mac-datorer. Det hjälper en del av datorns funktioner att fungera, inklusive LED -indikatorer, tangentbord och andra kringutrustning, kylfläktar och strömknappar. Den spelar också en roll för hur hårddisken fungerar, hur din Mac beter sig i viloläge och även hur strömförsörjningen fungerar.
SMC är ansvarig för så många funktioner på en Mac att det är värt att testa en återställning när datorns maskinvara fungerar på ett oväntat sätt. Här är en lista över de viktigaste symptomen som tyder på att du bör återställa SMC:
- Batteriet eller statuslamporna beter sig konstigt
- Tangentbordets bakgrundsbelysning fungerar inte korrekt
- Din MacBook slås inte på när du öppnar den
- Strömadapterlampan reflekterar inte vad den gör
- Fläkten går onormalt högt, särskilt vid låg belastning
- Sty
What is PRAM and why is it important for your MacBook?
PRAM, or Parameter Random Access Memory, is a small memory section on your MacBook that stores vital system settings. These settings include display resolution, startup disk selection, time zone, and sound volume, among others. PRAM is crucial for maintaining optimal MacBook performance by preserving these settings even when the device is powered off.
Resetting PRAM can be helpful in various situations. It can resolve display problems, sound issues, and startup failures. Additionally, resetting PRAM can improve overall MacBook performance by clearing corrupted or outdated settings. It is a simple yet effective troubleshooting step that often resolves minor software glitches and enhances the user experience.
Step-by-step guide to resetting PRAM on your MacBook
- Completely shut down your MacBook by selecting &#;Shut Down&#; from the Apple menu.
- Locate the Command (⌘), Option (⌥), P, and R keys on your keyboard.
- Simultaneously press and hold the Command (⌘), Option (⌥), P, and R keys.
- Turn on your MacBook while still holding down the keys.
- Continue holding the keys until you hear the sta
.