2 Easy Ways to Reset PRAM and SMC on Mac

Dear friend,

As an IT expert and Mac enthusiast, I want to help you solve some of the most common issues that can plague our favorite Apple devices. Has your Mac been acting up lately, with glitches on the screen, fans spinning for no reason, or the battery not charging properly? I feel your pain.

Based on my decade of experience troubleshooting Mac problems, resetting the PRAM and SMC are two easy steps everyone should try when their Mac starts misbehaving. In this guide, I‘ll explain what PRAM and SMC are, why resetting them helps, and walk you through the simple process step-by-step.

I know you’ve likely already tried basic troubleshooting like restarting and running Disk Utility. But resetting PRAM and SMC should also be part of your toolkit to revive a sluggish, unresponsive Mac. My goal is to equip you with the knowledge to handle these solutions yourself, so you don‘t have to rely on the Genius Bar or costly repairs.

Let‘s start by understanding what PRAM and SMC are and why they can cause problems when corrupted.

Demystifying PRAM and SMC

PRAM and SMC sound technical, but the concepts are straightforward.

What is PRAM?

PRAM stands for Parameter Random Access Memory. It‘s a small amount of memory that stores settings and other data your Mac and apps need to function.

For example, PRAM contains:

Your screen resolution
Speaker volume
Startup disk selection
Recent kernel panic information
World time settings

And much more! Think of PRAM like your Mac‘s long-term memory.

Unlike regular RAM that gets wiped when you shut down your Mac, PRAM uses a battery to retain settings even when powered off. This makes it "non-volatile."

Here‘s an important distinction – newer Macs use NVRAM instead of PRAM. NVRAM stands for Non-Volatile Random Access Memory. It functions similarly but stores less information than traditional PRAM.

Either way, resetting them can fix problems caused by corrupted data. The steps are the same, so you can just think "NVRAM reset" for modern Macs.

What is SMC?

SMC stands for System Management Controller. This computer chip controls low-level functions in your Mac like:

Battery management
Thermal regulation
Sleep/wake
Status indicator lights
Power button
Keyboard backlighting

Basically, it handles anything hardware or power-related. The SMC makes sure components like your fans, hard drive, and batteries work properly.

Resetting it can resolve issues like:

Fans constantly spinning
Problems waking from sleep
Battery not charging
Lights/buttons not responding

Corrupted SMC data is a common source of hardware and power problems. Let‘s look at how to reset it.

Step-by-Step: How to Reset PRAM and SMC

Ready to revive your misbehaving Mac? Resetting PRAM and SMC is straightforward, but the specific steps vary by model. I‘ll walk you through both methods with easy to follow instructions.

Reset PRAM/NVRAM

Here‘s how to reset your Mac‘s PRAM or NVRAM:

Shut down your Mac – Click the Apple menu and select Shut Down.
Power on and hold command-option-P-R – Press the power button to turn your Mac back on. Immediately hold down the command-option-P-R keys. Keep holding until you see the Apple logo appear and disappear for the second time. This should take about 20 seconds.
Let it boot up – Release the keys and let your Mac finish starting up normally.

That‘s all there is to it! This process clears out old PRAM/NVRAM data and forces your Mac to create a fresh copy on reboot.

This manual PRAM reset works for both older, Intel-based Macs and new M1/M2 models. However, M-series Macs will also reset NVRAM automatically during a normal shutdown/reboot. So you really only need the manual steps for Intel models.

After your Mac boots back up, open System Preferences to reinstate any custom settings like resolution or time zone that got erased. And voila, that should hopefully fix any odd behavior caused by corrupt PRAM/NVRAM data!

Reset SMC

Resetting the SMC is also easy, but the steps vary across Mac models. Here‘s how to do it on the most common configurations:

For MacBooks with Apple silicon (M1/M2 chips):

Shut down your Mac
Wait for 30 seconds
Turn your Mac back on

The SMC resets every time you fully power cycle an Apple silicon MacBook. So a simple reboot clears out any problematic data.

For MacBooks with Intel chips and the T2 security chip:

Shut down your MacBook
Press and hold control-option-shift for 7 seconds
Without releasing the keys, press and hold the power button as well for another 7 seconds
Let go of all keys and wait a few seconds
Power your MacBook back on

For iMac Pros and Mac Pros with T2 chips:

Shut down your Mac
Unplug the power cable and wait 15 seconds
Plug the cable back in and wait 5 seconds more
Power on your Mac as normal

This process wipes the SMC controller, forcing it to create a fresh set of data on next boot. For Macs without T2 chips, the steps are essentially the same – just leave out the Control key.

Hopefully that demystifies the SMC reset process! It looks complex when written out, but is very easy in practice. If you follow the steps specific to your model, you can clear out any gremlins causing hardware or power-related misbehavior.

Success Stories

Resetting PRAM and SMC has resolved so many bizarre issues for me and my clients over the years. Here are just a few examples:

A MacBook Pro would crash every time the screensaver activated. Resetting NVRAM fixed it.
The keyboard backlight stopped working on an iMac. A quick SMC reset brought it back to life.
Fans would randomly rev up to full speed on a Mac mini before resetting the SMC.
Wifi connectivity improved drastically after an NVRAM reset on an older MacBook Air.
Screen flickering issues disappeared after resetting both PRAM and SMC.

Those are just a few of the success stories I have. Chances are excellent that resetting PRAM and SMC will banish your Mac gremlins as well. And it only takes a minute!

Now let’s look at some handy utilities that can automate part of the reset process for us.

Utilities That Reset PRAM and SMC

If going through the manual steps sounds daunting, consider using a utility that can reset PRAM and SMC with just a few clicks. They can also perform deeper system optimizations and troubleshooting beyond just resets.

Based on my testing, these are the best options currently available:

1. 4DDiG Mac Boot Genius

My favorite is 4DDIG Mac Boot Genius by Tenorshare. It simplifies PRAM and SMC resets down to just a couple clicks.

But it can also fix many other issues causing crashes, slow performance, stuck progress bars, installation problems, and more. I‘ve used it to resolve difficult issues like Macs stuck in recovery mode.

The free version lets you reset PRAM/NVRAM and SMC. But upgrading to the full version is worthwhile to unlock the full optimization and troubleshooting toolkit.

2. Avast Cleanup Premium

Another good option is Avast Cleanup Premium. While it doesn‘t directly reset PRAM or SMC, Avast excels at freeing up storage space and speeding up your Mac by removing junk files and unnecessary data.

A decluttered Mac is less prone to the issues that require PRAM/SMC resets to begin with. So Avast‘s optimizations nicely complement the resets. It‘s a worthy addition to your Mac maintenance toolbox.

3. MacKeeper

Lastly, I recommend checking out MacKeeper. Their flagship utility packs a huge range of optimization, antivirus, and cleaning tools to keep your Mac in tip-top shape.

Some standout features:

One-click automated optimizations, including PRAM reset
Virus scanning
Performance monitoring
Junk cleaning
Data backups
24/7 technical support

While a little bloated, MacKeeper lives up to its name by tackling every aspect of Mac maintenance. Try the free version and see if the extras justify upgrading.

When to Reset PRAM/NVRAM and SMC

As we discussed earlier, resetting these systems can resolve many common Mac problems. But when should you actually try it?

Here are the most common scenarios where I recommend resetting PRAM/NVRAM and SMC as troubleshooting steps:

General system instability – frequent crashes, freezes, etc.
Startup issues – long boot times, prohibiting sign in, getting stuck
Display problems – flickering, discoloration, incorrect resolution
Battery/charging problems – not charging fully, draining too fast
Input device issues – trackpad, keyboard not responding
Fans constantly running loudly
Problems coming out of sleep/screensaver mode
Wifi and Bluetooth connectivity problems

Really any erratic hardware behavior or system glitches can potentially be fixed with PRAM/NVRAM and SMC resets. Unlike Windows PCs, there is very little risk involved.

The nice thing is that even if resets don‘t solve the problem, they never hurt to try and take less than 5 minutes in most cases. Just be sure to reconfigure any custom settings afterwards.

When NOT to Reset

The only times I would avoid resetting PRAM/NVRAM and SMC are:

If you need to preserve custom BIOS settings, overclocks, or boot arguments – these gets wiped in the process. You‘ll want to back them up first.
If you have a critical project open with unsaved work – resets force an immediate reboot.
If you‘re troubleshooting an issue caused by a failing drive or hardware component – resets can‘t fix physical damage of course!

Outside of those edge cases, you‘re safe to try resets to revive an ailing Mac.

Closing Thoughts

Well my friend, hopefully this guide gave you a solid understanding of PRAM/NVRAM and SMC on Macs – what they do, why to reset them, and how to do it yourself.

While seemly technical, these are simple procedures anyone can perform themselves to troubleshoot a misbehaving Mac. Resetting corrupted PRAM and SMC data revived many devices I’d given up hope on over the years.

So don’t hesitate to try them next time your Mac starts acting up! Let me know if you have any other questions. I‘m always happy to help a fellow Mac enthusiast.

Warm regards,

[Your Name]