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How to Reset SMC and NVRAM on a Mac — Without Using the Wrong Instructions

06/19/2025

Blog feature

Your Mac is doing something weird, so somebody on the internet told you to “reset the SMC and PRAM.”

Classic.

Before you start holding four keys like you’re entering a cheat code, there’s one important question:

Does your Mac have an Intel processor or Apple silicon?

That matters because a lot of SMC and PRAM advice floating around online was written for older Intel Macs. If you have a newer Mac with an M-series chip, most of those key combinations simply don’t apply.

Here’s the current way to approach it.

First: What Are SMC, PRAM, and NVRAM?

Let’s get the alphabet soup out of the way.

SMC stands for System Management Controller. On Intel Macs, it helps manage things like power, charging, fans, thermal behavior, sensors, USB power, and certain hardware functions. Apple says an SMC reset may help with some uncommon power, thermal, charging, or hardware-behavior problems.

NVRAM stands for Non-Volatile Random-Access Memory. You may also hear the older term PRAM. It stores a small number of system settings such as sound volume, display resolution, startup-disk selection, and time zone.

The important part:

These are troubleshooting tools, not magical “make my Mac faster” buttons.

Do You Actually Need to Reset the SMC?

Probably not as your first move.

Apple specifically says most people do not need to reset the SMC, but it can sometimes help on Intel Macs with issues involving things like:

  • a battery that won’t charge;
  • a Mac that won’t turn on;
  • fans running unusually fast;
  • excessive heat;
  • certain built-in camera problems;
  • power or hardware behavior that still seems wrong after normal troubleshooting.

Before going further, restart the Mac normally and install any pending macOS updates.

If the problem continues, then the reset may be worth trying.

Step One: Find Out Which Mac You Have

Don’t guess based on the year.

Go to:

Apple menu  → About This Mac

If the window shows Chip followed by something like Apple M1, M2, M3, M4, or another Apple chip, you have Apple silicon.

If it shows Processor followed by an Intel processor, you have an Intel Mac.

That one distinction prevents a surprising amount of internet troubleshooting nonsense.

If You Have a Mac With Apple Silicon

This is the easy section.

SMC reset

There is no old-school SMC key combination to perform.

Apple’s current instructions are simply to make sure the Mac is connected to power and then either:

  • restart it normally; or
  • shut it down, then turn it back on.

Apple says no other steps are needed because the SMC resets automatically on Macs with Apple silicon.

So if another guide has you performing finger gymnastics on an M-series Mac, you can give your hands the day off.

NVRAM / PRAM reset

You don’t manually perform the old Option + Command + P + R reset on Apple-silicon Macs either.

Apple says the NVRAM-reset procedure used on Intel Macs doesn’t apply and isn’t needed on Apple silicon.

If your Apple-silicon Mac is still behaving strangely after a normal restart, you’re better off troubleshooting the actual symptom rather than repeatedly searching for a nonexistent reset combination.

If You Have an Intel Mac

Now the traditional reset procedures become relevant.

For an SMC reset, you first need to know whether your Intel Mac has Apple’s T2 Security Chip.

Apple maintains a list of T2-equipped Macs, so if you’re unsure, check the specific model instead of assuming based only on its year.

Resetting the SMC on an Intel Mac With the T2 Chip

MacBook or other Intel laptop with T2

Apple recommends trying a simpler restart procedure first:

  1. Shut down the Mac.
  2. Press and hold the power button or Touch ID button for 10 seconds.
  3. Release it.
  4. Wait a few seconds.
  5. Turn the Mac back on.

If the problem continues, perform the full SMC reset:

  1. Shut down the Mac.
  2. Hold left Control + left Option + right Shift.
  3. Keep holding those three keys for 7 seconds.
  4. While still holding them, press and hold the power button too.
  5. Hold all four for another 7 seconds.
  6. Release everything.
  7. Wait a few seconds.
  8. Turn the Mac back on.

Those key positions matter. Yes, Apple somehow found a way to make left-versus-right Shift important.

Intel desktop Mac with T2

For an Intel desktop with the T2 chip:

  1. Shut down the Mac.
  2. Unplug the power cord.
  3. Wait 15 seconds.
  4. Plug it back in.
  5. Wait 5 seconds.
  6. Press the power button.

Much easier on the fingers.

Resetting the SMC on an Intel Mac Without the T2 Chip

Intel Mac laptop

  1. Shut down the Mac.
  2. On the built-in keyboard, hold left Shift + left Control + left Option.
  3. While holding those keys, press and hold the power button.
  4. Keep holding all four for 10 seconds.
  5. Release them.
  6. Press the power button normally to turn the Mac on.

Intel desktop Mac without T2

  1. Shut down the Mac.
  2. Unplug its power cord.
  3. Wait 15 seconds.
  4. Plug the power cord back in.
  5. Wait 5 seconds.
  6. Turn the Mac on.

How to Reset NVRAM or PRAM on an Intel Mac

This one is more straightforward.

If settings such as your sound volume, display resolution, startup disk, or time zone keep behaving strangely, an NVRAM reset may help.

To reset it:

  1. Shut down your Mac.
  2. Turn it on.
  3. Immediately press and hold Option + Command + P + R.
  4. Keep holding the keys for about 20 seconds.
  5. Release them and allow the Mac to start normally.

During those 20 seconds, your Mac might appear to restart. Depending on the model, you may hear the startup sound more than once or see the Apple logo more than once.

Afterward, you might need to readjust a few settings that were stored in NVRAM.

Does Resetting SMC or NVRAM Delete Your Files?

No.

These procedures are not the same thing as erasing your Mac or reinstalling macOS.

An SMC or NVRAM reset is aimed at low-level hardware behavior or stored system settings—not your photos, documents, applications, or other personal files.

That said, keeping a current backup is always smart before moving on to more invasive troubleshooting such as disk repairs, macOS reinstallations, or erasing the computer.

“Nothing should happen to my data” and “I have absolutely no backup whatsoever” are two sentences that should never have to meet each other.

What If Your Mac Shows a Flashing Question-Mark Folder?

This deserves its own warning because it isn’t automatically an SMC problem.

A flashing question-mark folder means the Mac cannot find a usable startup disk or a working macOS installation.

If the question mark appears briefly and the Mac eventually starts, Apple recommends checking the selected startup disk. On an Intel Mac, resetting NVRAM can also be appropriate if that doesn’t solve it.

If the folder stays on the screen and the Mac doesn’t boot, don’t sit there resetting NVRAM twelve times.

That’s when you should use macOS Recovery and Disk Utility to diagnose the startup disk.

What If the Reset Doesn’t Fix Anything?

Then the problem probably needs more specific troubleshooting.

For example:

  • A battery that still won’t charge may have a battery, charger, cable, or hardware issue.
  • Constantly running fans may be reacting to an actual thermal or software problem.
  • A Mac that won’t boot may need Recovery, Disk Utility, or hardware service.
  • A failing startup drive isn’t going to be convinced to work by another keyboard shortcut.

The reset is a troubleshooting step—not an exorcism.

Should You Reset NVRAM Before Selling an Intel Mac?

Interestingly, yes.

Apple specifically recommends resetting NVRAM as a final preparation step when selling, trading in, giving away, or recycling an Intel-based Mac.

On newer Macs with Apple silicon or the T2 chip and a supported macOS version, Apple’s Erase All Content and Settings process handles the much bigger job of removing your personal information and preparing the computer for its next owner.

If you’re getting your Mac ready to sell, don’t stop at an SMC or NVRAM reset. You’ll also want to make sure your personal data and account locks have been properly removed.

Still Having Trouble With the Mac?

If a restart and the correct troubleshooting steps don’t solve the problem, you may be dealing with a real hardware or software failure.

And depending on the age of the Mac, there eventually comes a point where spending another Saturday troubleshooting it stops being fun.

If that point has arrived, you can check what GoRoostr is currently paying for your exact Mac:

See what your MacBook is worth

Have a MacBook Pro specifically?

Get a MacBook Pro quote

Even if your Mac has an issue, use the actual model and condition choices in the quote form rather than picking the closest thing and hoping nobody notices. Our inspection team tends to notice things. It’s sort of their job.

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